Described herein is a method of installing a loudspeaker module in a vehicle frame The loudspeaker module comprises a loudspeaker and a module housing. The loudspeaker comprises a diaphragm, a drive unit configured to move the diaphragm to produce sound, and a movable assembly that includes the diaphragm and a movable part of the drive unit. A mass of the movable part of the drive unit is at least 60% of a mass of the movable assembly. The diaphragm of the loudspeaker and the module housing together enclose and acoustic volume. The method comprises installing the loudspeaker module in a pillar of the vehicle frame such that the acoustic volume is contained within the pillar, and such that sound produced by the loudspeaker module propagates out from an aperture in the pillar when the loudspeaker module is in use. There is also described a vehicle frame comprising a loudspeaker module installed in a pillar of the vehicle frame, using any of the described methods.
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
B60R 11/02 - Autres aménagements pour tenir ou monter des objets pour postes radio, de télévision, téléphones, ou objets similairesDisposition de leur commande
A loudspeaker assembly comprising a loudspeaker, a rear enclosure, and a waveguide is disclosed. The loudspeaker includes: a diaphragm, a drive unit, and a frame. The diaphragm has a first radiating surface for radiating sound forward and a second radiating surface for radiating sound rearward. The first and second surfaces are located on opposite faces of the diaphragm. The drive unit moves the diaphragm based on an electrical signal. The diaphragm is suspended from the frame. The rear enclosure encloses a volume configured to receive sound produced by the second surface. The rear enclosure includes regions of porous material configured to allow sound produced by the second surface to exit the volume. The waveguide directs sound produced by the first surface forward towards a mouth. The waveguide includes regions of porous material to allow sound produced by the first surface to exit the waveguide.
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
There is provided a loudspeaker including: a loudspeaker frame; a diaphragm suspended from the loudspeaker frame; a voice coil attached to the diaphragm to form a moving assembly which is moveable along a movement axis to produce sound, a magnet unit which includes a permanent magnet and a plurality of flux guides including a U-yoke, an inner flux guide and an outer flux guide; wherein: the U-yoke has a base portion on which the permanent magnet and the inner flux guide are stacked, and an upright portion which extends around the permanent magnet, the outer flux guide is seated on the upright portion of the U-yoke and extends around the inner flux guide, the magnet unit is configured to generate magnetic flux across an air gap between the inner flux guide and the outer flux guide, wherein the voice coil is configured to sit in the air gap when the moving assembly is at rest; and wherein the loudspeaker frame includes an overmoulded portion which is moulded over a portion of the outer flux guide to constrain the outer flux guide axially and radially with respect to the movement axis.
There is provided a loudspeaker wherein a frame is moulded with a magnet system such that the frame extends through an aperture in the magnet system. By moulding the frame to extend as a single piece through an aperture, the frame can be attached to the magnet system without glue. The aperture in the magnet system extends from one side to another. By forming the frame to extend over the opening at each side, the frame can be securely connected to the magnet system. The aperture in the magnet system extends between a first surface and a second surface. The first surface and the second surface are on opposed sides of the magnet system. By the frame extending over at least a portion of the first and second surfaces, the frame extends over the apertures and securely connects the frame and magnet system, forming a unitary part.
B29C 45/14 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet en incorporant des parties ou des couches préformées, p. ex. moulage par injection autour d'inserts ou sur des objets à recouvrir
B29L 31/34 - Appareils électriques, p. ex. bougies ou leurs parties constitutives
There is provided a loudspeaker including a frame, a diaphragm suspended from the frame and a drive unit; wherein the drive unit has a stationary part secured to the frame and a translatable part secured to the diaphragm, the translatable part of the drive unit includes a magnet unit configured to produce a magnetic field in an air gap, the stationary part of the drive unit includes a voice coil configured to sit in the air gap when the diaphragm is at rest; and the loudspeaker is operable to energise the voice coil to cause the magnet unit to move along a movement axis relative to the voice coil, thereby moving the diaphragm along the movement axis to produce sound.
There is provided a loudspeaker module for producing sound at bass frequencies, including: a loudspeaker frame; a diaphragm suspended from the loudspeaker frame; a drive unit to move the diaphragm along a movement axis of the loudspeaker module to produce sound from a first radiating surface and a second radiating surface of the diaphragm; the first and second radiating surfaces on opposite sides of the diaphragm; wherein the drive unit includes a magnet unit to generate magnetic flux across an air gap and a voice coil to be located in the air gap when the diaphragm is rest; and an enclosure to receive sound produced by the second radiating surface of the diaphragm; wherein the loudspeaker module has a total quality factor Qtc of at least 1.8 when the diaphragm is at rest; and wherein a magnetic flux density at a first perimeter of the voice coil is 50% or less of a magnetic flux density at a second perimeter of the voice coil when the diaphragm is at rest.
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 9/02 - Transducteurs du type à bobine mobile, à lame mobile ou à fil mobile Détails
7.
METHOD OF MANUFACTURING A VEHICLE, A LOUDSPEAKER AND A VEHICLE
There is provided a method of manufacturing a vehicle including: providing a precursor vehicle; the precursor vehicle includes a body having a weight of at least 100kg; the body includes an airtight surface configured to face into an interior of the vehicle manufactured from the precursor vehicle; providing a loudspeaker module for producing sound at bass frequencies; the loudspeaker module includes: a loudspeaker frame, a diaphragm suspended from the loudspeaker frame, and a drive unit configured to move the diaphragm to produce sound; the loudspeaker frame has a rear opening; a partially-enclosed volume is formed between the diaphragm, the loudspeaker frame and the rear opening. The method further includes attaching the loudspeaker module to the body so as to form a sealed volume bounded by the airtight surface of the body, the loudspeaker frame and the diaphragm; the partially-enclosed volume forms at least a majority of the sealed volume.
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
B60R 11/02 - Autres aménagements pour tenir ou monter des objets pour postes radio, de télévision, téléphones, ou objets similairesDisposition de leur commande
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
A method for use in forming a magnet unit for a loudspeaker, wherein the method includes: providing a yoke for guiding magnetic flux, wherein the yoke has a base and an upright which projects from the base and defines an axis of the yoke; providing a tubular stacking element which has a tubular wall which extends around an axis of the tubular stacking element; providing a permanent magnet for generating magnetic flux and at least one flux guide for guiding magnetic flux; stacking the permanent magnet and the at least one flux guide using the tubular stacking element such that the tubular stacking element radially restrains the permanent magnet and the at least one flux guide relative to the axis of the tubular stacking element; mounting the tubular stacking element, the permanent magnet, or the at least one flux guide to the yoke so as to radially restrain said tubular stacking element, permanent magnet, or at least one flux guide relative to the axis of the yoke; wherein the stacking and the mounting cause an air gap for receiving a voice coil to be formed between the tubular wall of the tubular stacking element and the upright of the yoke.
A method for use in manufacturing a loudspeaker. The method comprises: connecting a basket and an enclosure by bringing the basket and the enclosure together. The basket comprises one or more first connectors for providing an electrical connection to a drive unit in the basket. The enclosure comprises a connection port for electrically connecting the loudspeaker to an external device and one or more second connectors, each for providing an electrical connection between a corresponding one of the one or more first connectors and the connection port. Each of the one or more second connectors is shaped and arranged such that bringing the basket and enclosure together causes each of the one or more first connectors to engage with the corresponding second connector, thereby electrically connecting the one or more first connectors to the connection port.
A loudspeaker assembly is disclosed that includes a headrest having a front face and a rear face; a bass dipole loudspeaker mounted to the headrest, wherein the loudspeaker includes a diaphragm having first and second radiating surfaces, wherein the radiating surfaces are located on opposite faces of the diaphragm, wherein the diaphragm moves at bass frequencies such that the radiating surfaces produce sound; a bass waveguide to guide bass produced by the first radiating surface via a forward-facing opening provided by the waveguide, wherein the loudspeaker is mounted such that bass produced by the second radiating surface propagates out from the rear face and such that the first radiating surface is closer to the rear face than to the front face. The forward-facing opening is larger than the first radiating surface as projected onto a plane perpendicular to a movement axis of the loudspeaker.
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 1/24 - Combinaisons structurelles de transducteurs séparés ou de parties du même transducteur et sensibles respectivement à plusieurs bandes de fréquences
A device for generating sound. The device includes: a first assembly and a second assembly. The first assembly includes a magnet unit and a coil. The magnet unit includes: a permanent magnet; at least one flux guiding element for guiding magnetic flux produced by the permanent magnet in a magnetic circuit. The second assembly, which is configured to move with respect to the first assembly, includes: a slug containing ferromagnetic material for carrying magnetic flux; a resilient suspension member attached to the first assembly, wherein the resilient suspension member is configured to suspend the slug from the first assembly such that the slug is positioned in the magnetic flux of the magnetic circuit. The device further includes an AC current signal source configured to supply an AC current signal to the coil when the device is activated so that magnetic flux generated by the AC current signal in the coil combines with magnetic flux of the magnetic circuit so as to cause the slug and resilient suspension member to vibrate along a movement axis thereby causing the device to generate sound. The device may be included in a A horn apparatus for a vehicle.
G10K 9/13 - Dispositifs dans lesquels le son est produit par la vibration d'un diaphragme ou un élément analogue, p. ex. cornes de brume, avertisseurs de véhicule ou vibreurs fonctionnant électriquement utilisant des moyens d'entraînement électromagnétiques
The present invention provides a loudspeaker assembly for use on the outside of a vehicle. The diaphragm and surround are formed of a single piece of material, the material comprising a single layer woven fabric of orthogonal, woven fibers and a thermoset resin.
A loudspeaker including: a diaphragm having a first radiating surface and a second radiating surface, wherein the first radiating surface and the second radiating surface are located on opposite faces of the diaphragm; a drive unit configured to move the diaphragm based on an electrical signal; a loudspeaker support structure, wherein the diaphragm is suspended from the loudspeaker support structure via one or more loudspeaker suspension elements. The loudspeaker support structure comprises a self-supporting porous shell which encloses a volume configured to receive sound produced by the second radiating surface, wherein at least part of the self-supporting porous shell is provided by at least one self-supporting portion of porous material having a specific airflow resistance in the range 500-10000 Pa·s/m so as to allow sound produced by the second radiating surface to exit the volume enclosed by the shell.
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 7/18 - Dispositions pour monter ou pour tendre des membranes ou des cônes à la périphérie
A shaker for transmitting vibrations to an application has a frame; magnet unit that provides a magnetic field in a gap; coil assembly including a voice coil mounted to a former. The former is attached to the frame at a former attachment surface and configured to position the coil in the gap, when the shaker is at rest. The magnet unit moves relative to the coil along an axis when the shaker is activated by supplying current to the coil. The magnet unit is suspended from the frame by a suspension arrangement including proximal and distal suspensions which interconnect the frame and magnet unit. The proximal suspension is closer to the former attachment surface than the distal suspension when the shaker is at rest. One of the proximal and distal suspensions has a stiffness K1, and the other K2, wherein K2>K1, and the ratio K1/K2 is 0.4 or less.
G08B 6/00 - Systèmes de signalisation tactile, p. ex. systèmes d'appel de personnes
B60N 2/90 - Détails ou éléments non prévus ailleurs
G08B 7/00 - Systèmes de signalisation selon plus d'un des groupes Systèmes d'appel de personnes selon plus d'un des groupes
H02K 33/18 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des systèmes de bobines se déplaçant, du fait de mises sous tension intermittentes ou inversées, par interaction avec un système de champ magnétique fixe, p. ex. des aimants permanents
H04R 9/02 - Transducteurs du type à bobine mobile, à lame mobile ou à fil mobile Détails
H04R 9/04 - Structure, montage ou centrage de bobine
A loudspeaker assembly includes: a chassis; a loudspeaker, including a drive unit and a diaphragm. The diaphragm includes a body portion and inner and outer suspension portions, wherein the body portion extends between the inner and outer suspension portions. The drive unit moves the body portion along a movement axis. The body portion has a front face facing forwards and a rear face facing rearwards parallel to the movement axis. The outer suspension portion is integral with the body portion, and is attached to the chassis at a first attachment location such that the body portion is suspended from the chassis. The inner suspension portion is integral with the body portion, and is attached to the chassis at a second attachment location such that the body portion is suspended from the chassis. The first and second attachment locations have separate first and second positions along the axis, respectively.
H04R 7/22 - Dispositions pour monter ou pour tendre des membranes ou des cônes à la périphérie pour fixer le bord de la membrane ou du cône sur son siège
There is provided a loudspeaker system comprising a housing; a first loudspeaker and a second loudspeaker mounted in the housing; wherein the loudspeaker system is operable to cause a first diaphragm of the first loudspeaker and a second diaphragm of the second loudspeaker to move along a common movement axis in opposite directions to produce sound; a separation sheet arranged to divide an internal volume enclosed by the housing into a first portion accommodating the first loudspeaker and a second portion accommodating the second loudspeaker; wherein an inwardly-facing radiating surface of the first diaphragm is arranged to radiate sound into the first portion of the internal volume enclosed by the housing and an inwardly-facing radiating surface of the second diaphragm is arranged to radiate sound into the second portion of the internal volume enclosed by the housing; wherein a thickness of the separation sheet is 2 millimetres or less.
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 1/22 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique de fréquence désirée uniquement
The present invention provides a loudspeaker assembly for use on the outside of a vehicle. The diaphragm and surround are formed of a single piece of material, the material comprising a single layer woven fabric of orthogonal, woven fibers and a thermoset resin.
A loudspeaker assembly that includes: a headrest having a front face facing in a forwards direction and a rear face facing in a rearwards direction, wherein the rearwards direction is opposite to the forwards direction, wherein the headrest is for use with a user's head located in front of the front face of the headrest; a first bass dipole loudspeaker mounted to the headrest, wherein the first bass dipole loudspeaker includes a first drive unit and a first diaphragm, wherein the first diaphragm has a first radiating surface and a second radiating surface, wherein the first radiating surface and the second radiating surface of the first diaphragm are located on opposite faces of the first diaphragm, wherein the first drive unit is configured to move the first diaphragm along a first movement axis at bass frequencies such that the first and second radiating surfaces of the first diaphragm produce sound at bass frequencies; a second bass dipole loudspeaker mounted to the headrest, wherein the second bass dipole loudspeaker includes a second drive unit and a second diaphragm, wherein the second diaphragm has a first radiating surface and a second radiating surface, wherein the first radiating surface and the second radiating surface of the second diaphragm are located on opposite faces of the second diaphragm, wherein the second drive unit is configured to move the second diaphragm along a second movement axis at bass frequencies such that the first and second radiating surfaces of the second diaphragm produce sound at bass frequencies; at least one bass waveguide configured to guide bass sound produced by the first radiating surfaces of the first and second bass dipole loudspeakers out from the front face of the headrest via at least one forward-facing opening provided by the at least one bass waveguide. The first and second bass dipole loudspeakers are mounted to the headrest with the second radiating surface of the first bass dipole loudspeaker facing towards the second radiating surface of the second bass dipole loudspeaker, and such that bass sound produced by the second radiating surfaces of the first and second bass dipole loudspeakers is able to propagate out from the rear face of the headrest. A first area is defined by the first radiating surface of the first loudspeaker as projected onto a plane perpendicular to the first movement axis. A second area is defined by the first radiating surface of the second loudspeaker as projected onto a plane perpendicular to the second movement axis. The area of the at least one forward-facing opening is larger than the sum of the first and second areas.
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
B60N 2/879 - Appuis-tête avec des caractéristiques supplémentaires ne se rapportant pas au positionnement de l’appui-tête, p. ex. des dispositifs de chauffage ou de refroidissement ou des haut-parleurs
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
There is provided a loudspeaker including a frame; a magnet unit secured to the frame to guide magnetic flux across an air gap; a diaphragm suspended from the frame; wherein the diaphragm includes a neck portion forming a diaphragm aperture; a voice coil assembly including a voice coil and a voice coil former; wherein the voice coil former extends through the diaphragm aperture such that a first gap is formed between the voice coil former and the neck portion of the diaphragm and a second gap is formed between the neck portion and the voice coil; a body of hardened adhesive which occupies the first gap between the voice coil former and the neck portion of the diaphragm and the second gap between the neck portion and the voice coil; wherein the loudspeaker is operable to energise the voice coil to cause the voice coil assembly to move relative to the magnet unit along a movement axis, thereby moving the diaphragm along the movement axis to produce sound.
Shaker A shaker for transmiting vibrations to an application. The shaker has: a frame, including an application atachment surface for ataching the shaker to the application; a magnet unit configured to provide a magnetic field in an air gap; a coil assembly including a voice coil mounted to a voice coil former, wherein the voice coil former is atached to the frame at a voice coil former atachment surface on the frame. The voice coil former is configured to position the voice coil in the air gap, when the magnet unit is in a rest position and the shaker is at rest. The magnet unit is configured to move relative to the voice coil along a movement axis of the shaker when the shaker is activated by supplying electrical curent to the voice coil. The magnet unit is suspended from the frame by a suspension arangement that includes a proximal suspension which interconnects the frame and the magnet unit and a distal suspension which interconnects the frame and the magnet unit, wherein the proximal suspension is closer to the voice coil former atachment surface on the frame than the distal suspension when the shaker is at rest. One of the proximal and distal suspensions includes an elastomeric material which is configured to resiliently stretch such that the stifness of the suspension that includes the elastomeric material increases as the magnet unit moves along the movement axis away from the rest position.
A horn apparatus for a vehicle. The horn apparatus includes: a horn activation mechanism operable by a user of the vehicle; a loudspeaker for producing sound which radiates outwardly from the vehicle, wherein the loudspeaker includes a drive unit and a diaphragm, wherein the drive unit is configured to move the diaphragm along a movement axis, wherein the diaphragm has a front face that faces in a forwards direction parallel to the movement axis and a rear face that faces in a rearwards direction parallel to the movement axis; wherein the loudspeaker includes a frame from which the diaphragm is suspended by at least one suspension; wherein the at least one suspension includes a surround which is located at a perimeter of the diaphragm; and wherein the diaphragm and surround are formed of a single piece of material; wherein the loudspeaker is configured to produce an audible warning sound based on an audio signal that has a crest factor that is below a predetermined threshold of 6dB or lower, in response to the horn activation mechanism being operated by a user of the vehicle.
G10K 9/13 - Dispositifs dans lesquels le son est produit par la vibration d'un diaphragme ou un élément analogue, p. ex. cornes de brume, avertisseurs de véhicule ou vibreurs fonctionnant électriquement utilisant des moyens d'entraînement électromagnétiques
G10K 13/00 - Cônes, membranes ou objets similaires pour émettre ou recevoir des sons en général
A method of synthesizing an audio signal for use by a horn apparatus for a vehicle to produce an audible warning sound, wherein the audio signal contains a fundamental frequency and harmonics corresponding to the fundamental frequency. The method includes: selecting weights for each of a plurality of harmonics corresponding to a fundamental frequency; using the selected weights to synthesize a precursor audio signal from only the fundamental frequency and the plurality of harmonics; compressing the precursor audio signal one or more times to provide an audio signal which has a crest factor that is below a predetermined threshold.
G10K 9/13 - Dispositifs dans lesquels le son est produit par la vibration d'un diaphragme ou un élément analogue, p. ex. cornes de brume, avertisseurs de véhicule ou vibreurs fonctionnant électriquement utilisant des moyens d'entraînement électromagnétiques
G10K 13/00 - Cônes, membranes ou objets similaires pour émettre ou recevoir des sons en général
A loudspeaker assembly for use outdoors. The loudspeaker assembly includes: a loudspeaker, including a drive unit and a diaphragm, wherein the drive unit is configured to move the diaphragm along a movement axis, a grille, positioned in front of a front face of the loudspeaker, the grille being configured to permit sound produced by the front face of the diaphragm to pass through the grille, and to inhibit the ingress of water incident on the front face of the grille from entering into a space enclosed between a rear face of the grille and the front face of the loudspeaker.
A loudspeaker arrangement for use in a vehicle is provided comprising: a loudspeaker module, an interior panel, and a separation panel. The loudspeaker module includes a loudspeaker and a waveguide. The loudspeaker has a diaphragm having a first radiating surface and a second radiating surface, and a drive unit configured to move the diaphragm based on an electrical signal. The first radiating surface and the second radiating surface are located on opposite faces of the diaphragm. The interior panel is configured to be positioned between the loudspeaker and an interior of a vehicle and defines an opening between the interior panel and a floor of the vehicle. The separation panel is configured to acoustically separate a first zone from a second zone. The separation panel has an aperture, wherein the loudspeaker is mounted across the aperture such that sound radiated by the first radiating surface is directed into the first zone and sound radiated by the second radiating surface is directed into the second zone. The waveguide is configured to guide sound radiated from the first radiating surface of the diaphragm in a downward direction to the opening so that the sound can radiate through the opening into the interior of the vehicle.
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
09 - Appareils et instruments scientifiques et électriques
35 - Publicité; Affaires commerciales
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Apparatus for recording, transmission or reproduction of
sound or images; data processing equipment and computers;
amplifiers, audio receivers, audio disc players, audio disc
recorders, audio tape players, audio tape recorders, video
disc players, video disc recorders, video tape players,
video tape recorders, loudspeakers, high density disc (HDD)
players, high density disc (HDD) recorders, integrated
circuit (IC) memory players, integrated circuit (IC) memory
recorders, solid state and flash memory players and
recorders, CD players, CD recorders, DVD players, DVD
recorders, television receivers, radio receivers; radio
transmitters; accessories for audio apparatus; accessories
for video apparatus; computers; accessories for computers;
media players, media recorders, media player controllers,
audio mixers, computer software program for audio apparatus
and video apparatus, computer software program for managing
audio data and video data, computer software program for
editing audio data and video data. Retail services connected with the sale of apparatus for
recording, transmission or reproduction of sound or images,
loudspeakers, headphones, earphones, amplifiers, subwoofers,
tuners, compact disc players, DVD players, video recorders,
home cinema equipment, sound bars for home cinema, digital
media players, digital music players, digital video players,
and cases, parts, fittings and accessories for all the
aforesaid goods; retail services connected with the sale of
audio streaming devices, video streaming devices, devices
for streaming media content over local networks, remote
controls, loudspeaker stands, stands for hi-fi equipment,
loudspeaker cables, cables for hi-fi equipment, loudspeaker
drive units, docking stations, audio receivers, video
receivers, and cases, parts, fittings and accessories for
all the aforesaid goods; retail services connected with the
sale of computer hardware for signal processing of audio and
video, computer hardware for replicating digital audio and
video signals, computer hardware for use in the field of
digital audio and video, signal processing apparatus for use
in connection with audio and video signals digital to
analogue converters, and cases, parts, fittings and
accessories for all the aforesaid goods; retail services
connected with the sale of computer software applications
connected with the processing of audio and video signals,
computer software applications connected with the streaming
of audio and video signals, communications apparatus for
networks carrying audio and video signals, and cases, parts,
fittings and accessories for all the aforesaid goods; retail
services connected with the sale of media carrying audio or
visual files, downloadable audio and video files,
downloadable music files, podcasts, downloadable electronic
publications, and parts, fittings and accessories for all
the aforesaid goods. Custom manufacturing and assembly of products for others,
namely for apparatus for recording, transmission or
reproduction of sound or images, loudspeakers, headphones,
earphones, amplifiers, subwoofers, tuners, compact disc
players, DVD players, video recorders, home cinema
equipment, sound bars for home cinema, digital media
players, digital music players, digital video players, and
cases, parts, fittings and accessories for all the aforesaid
goods; custom manufacturing and assembly of products for
others, namely for audio streaming devices, video streaming
devices, devices for streaming media content over local
networks, remote controls, loudspeaker stands, stands for
hi-fi equipment, loudspeaker cables, cables for hi-fi
equipment, loudspeaker drive units, docking stations, audio
receivers, video receivers, and cases, parts, fittings and
accessories for all the aforesaid goods; custom
manufacturing and assembly of products for others, namely
for computer hardware for signal processing of audio and
video, computer hardware for replicating digital audio and
video signals, computer hardware for use in the field of
digital audio and video, signal processing apparatus for use
in connection with audio and video signals, digital to
analogue converters, and cases, parts, fittings and
accessories for all the aforesaid goods; custom
manufacturing and assembly of products for others, namely
for computer software applications connected with the
processing of audio and video signals, computer software
applications connected with the streaming of audio and video
signals, communications apparatus for networks carrying
audio and video signals, and cases, parts, fittings and
accessories for all the aforesaid goods; custom
manufacturing and assembly of products for others, namely
for media carrying audio or visual files, downloadable audio
and video files, downloadable music files, podcasts,
downloadable electronic publications, and parts, fittings
and accessories for all the aforesaid goods. Research, design, product development and testing services
provided for others.
A bass loudspeaker system (10) including: a housing (100); a first diaphragm (210) and a second diaphragm (220); a first drive unit (310) and a second drive unit (320), each drive unit including a stationary part attached to the housing and a translatable part. The translatable part of the first drive unit (310) is attached to the first diaphragm (210) to form a first moving assembly suspended from the housing (100) by a first surround (510) and a first damper (610), and the translatable part of the second drive unit (320) is attached to the second diaphragm (220) to form a second moving assembly suspended from the housing (100) by a second surround (520) and a second damper (620). The bass loudspeaker system (10) is operable to energise the first drive unit (310) and the second drive unit (320) to cause the first moving assembly and the second moving assembly to move along a movement axis (12) in opposite directions to produce sound. The first surround (510) includes an outside tab (512) attached to the housing (100), an inside tab (514) attached to the first diaphragm (210), and a surround body (516) between the outside tab (512) and the inside tab (514). The second surround (520) includes an outside tab (522) attached to the housing (100), an inside tab (524) attached to the second diaphragm (220), and a surround body (526) between the outside tab (522) and the inside tab (524). The first damper (610) includes an outside tab (612) attached to the housing (100), an inside tab (614) attached to the first moving assembly and a damper body (616) between the outside tab (612) and the inside tab (614). The second damper (620) includes an outside tab (622) attached to the housing (100), an inside tab (624) attached to the second moving assembly and a damper body (626) between the outside tab (622) and the inside tab (624). The width of the damper body of the first damper as measured in a direction of measurement perpendicular to the movement axis is greater than the width of the surround body of the first surround in said direction of measurement. The width of the damper body of the second damper as measured in said direction of measurement is greater than the width of the surround body of the second surround in said direction of measurement.
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 1/22 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique de fréquence désirée uniquement
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 7/20 - Dispositions pour monter ou pour tendre des membranes ou des cônes à la périphérie pour fixer une membrane ou un cône élastiquement à un support au moyen d'un matériau flexible, ressorts, fils ou cordes
A dipole loudspeaker for producing sound at bass frequencies. The dipole loudspeaker includes: a diaphragm having a first radiating surface and a second radiating surface, a drive unit configured to move the diaphragm at bass frequencies such that the first and second radiating surfaces produce sound at bass frequencies, and a frame. The loudspeaker is for use with an ear of a user being located at a listening position that is in front of the first radiating surface and is 40 cm or less from the first radiating surface.
H04R 1/32 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
H04R 5/02 - Dispositions spatiales ou structurelles de haut-parleurs
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
09 - Appareils et instruments scientifiques et électriques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Retail store and online retail store services featuring apparatus for recording, transmission or reproduction of sound or images, loudspeakers, headphones, earphones, amplifiers, subwoofers, tuners, compact disc players, DVD players, video recorders, home cinema equipment, sound bars for home cinema, digital media players, digital music players, digital video players, and cases, parts, fittings and accessories for all the aforesaid goods; retail store and online retail store services featuring audio streaming devices, video streaming devices, devices for streaming media content over local networks, remote controls, loudspeaker stands, stands for hi-fi equipment, loudspeaker cables, cables for hi-fi equipment, loudspeaker drive units, docking stations, audio receivers, video receivers, and cases, parts, fittings and accessories for all the aforesaid goods; retail store and online retail store services featuring computer hardware for signal processing of audio and video, computer hardware for replicating digital audio and video signals, computer hardware for use in the field of digital audio and video, signal processing apparatus for use in connection with audio and video signals digital to analogue converters, and cases, parts, fittings and accessories for all the aforesaid goods; retail store and online retail store services featuring computer software applications connected with the processing of audio and video signals, computer software applications connected with the streaming of audio and video signals, communications apparatus for networks carrying audio and video signals, and cases, parts, fittings and accessories for all the aforesaid goods; retail store and online retail store services featuring media carrying audio or visual files, downloadable audio and video files, downloadable music files, podcasts, downloadable electronic publications, and parts, fittings and accessories for all the aforesaid goods Custom manufacturing and assembly of products for others, namely, for apparatus for recording, transmission or reproduction of sound or images, loudspeakers, headphones, earphones, amplifiers, subwoofers, tuners, compact disc players, DVD players, video recorders, home cinema equipment, sound bars for home cinema, digital media players, digital music players, digital video players, and cases, parts, fittings and accessories for all the aforesaid goods; custom manufacturing and assembly of products for others, namely, for audio streaming devices, video streaming devices, devices for streaming media content over local networks, remote controls, loudspeaker stands, stands for hi-fi equipment, loudspeaker cables, cables for hi-fi equipment, loudspeaker drive units, docking stations, audio receivers, video receivers, and cases, parts, fittings and accessories for all the aforesaid goods; custom manufacturing and assembly of products for others, namely, for computer hardware for signal processing of audio and video, computer hardware for replicating digital audio and video signals, computer hardware for use in the field of digital audio and video, signal processing apparatus for use in connection with audio and video signals, digital to analogue converters, and cases, parts, fittings and accessories for all the aforesaid goods; custom manufacturing and assembly of products for others, namely, for recorded computer software applications connected with the processing of audio and video signals, recorded computer software applications connected with the streaming of audio and video signals, communications apparatus for networks carrying audio and video signals, and cases, parts, fittings and accessories for all the aforesaid goods; custom manufacturing and assembly of products for others, namely, for physical media devices carrying digital files in the nature of audio or visual files, downloadable audio and video files, downloadable music files, podcasts, and downloadable electronic publications, and parts, fittings and accessories for all the aforesaid goods Apparatus for recording, transmission or reproduction of sound; data processing equipment and computers; amplifiers, audio receivers, audio compact disc players, audio disc recorders, digital audio tape players, audio tape recorders, video disc players, video disc recorders, video tape players, video tape recorders, loudspeakers, high density disc (HDD) players, high density disc (HDD) recorders, integrated circuit (IC) memory players, integrated circuit (IC) memory recorders, solid state video and flash memory card players and recorders, CD players, CD recorders, DVD players, DVD recorders, television receivers, radio receivers; radio transmitters; accessories for audio apparatus, namely, audio cables, audio connectors, loudspeaker grilles; computers; media players, media recorders in the nature of apparatus for recording sound and images, electronic media player controllers, audio mixers, downloadable computer software program for operating audio apparatus, downloadable computer software program for managing audio data and video data, downloadable computer software program for editing audio data and video data Product research, new product design, product development and product testing services provided for others
An audible vehicle warning system is arranged for generating a horn signal and includes a loudspeaker system having a loudspeaker arranged for outputting sound signals at least in a selected frequency range comprising at least frequencies from 400 to 2 kHz, a sound library including one or more sound signals intended as a horn signal when output by the loudspeaker. Each of the sound signals has a ⅓ octave frequency band, which is taken as a reference frequency band. The reference frequency band contains at least a predetermined part of the total power of the sound signal. An ⅓ octave frequency band averaged response of the loudspeaker system has in a ⅓ octave frequency band corresponding to the reference frequency band an amplitude level, which is at least a given amount of dB above the average amplitude level in the selected frequency range.
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 1/30 - Combinaisons de transducteurs avec des pavillons, p. ex. avec des moyens d'équilibrage mécanique
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
A dipole loudspeaker assembly for producing sound at bass frequencies is provided. The dipole loudspeaker can include a diaphragm having a first radiating surface and a second radiating surface located on opposite faces of the diaphragm. The dipole loudspeaker includes a drive unit, wherein the sound produced by the first radiating surface is in anti-phase with sound produced by the second radiating surface. The diaphragm is suspended from the drive unit frame via at least one drive unit suspension. The dipole loudspeaker includes a mounting frame suspension, at least partially overlaps with one or more elements selected from the diaphragm and at least one drive unit suspension as projected onto the same plane, and is formed in a gap between the drive unit frame and the mounting frame and extends substantially continuously around the drive unit frame.
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 7/16 - Dispositions pour monter ou pour tendre des membranes ou des cônes
H04R 9/04 - Structure, montage ou centrage de bobine
A bass loudspeaker including: a frame; a diaphragm suspended from the frame by a first suspension element and a second suspension element; the first suspension element is attached to the frame at a first landing surface on the frame; the second suspension element is attached to the frame at a second landing surface on the frame; a magnet unit secured to the frame; the magnet unit includes a permanent magnet and at least two flux guiding elements guide magnetic flux across an air gap; a voice coil rigidly connected to the diaphragm; the loudspeaker operable to energise the voice coil to cause the voice coil to move relative to the magnet unit along a movement axis, thereby moving the diaphragm along the movement axis to produce sound; the voice coil configured to sit in the air gap, with a centre of mass of the voice coil having a position along the movement axis that is between the first landing surface and the second landing surface, when the diaphragm is at rest; a magnetic flux density at an outer perimeter of the voice coil is 50% or less of a magnetic flux density at an inner perimeter of the voice coil.
A method for positioning a shaker in a seat includes a headrest and a backrest. The headrest has a bass loudspeaker. The shaker is positioned in the headrest. The seat is typically a seat in a motor vehicle or a seat in a theatre or a massage chair or an entertainment chair.
B60N 2/879 - Appuis-tête avec des caractéristiques supplémentaires ne se rapportant pas au positionnement de l’appui-tête, p. ex. des dispositifs de chauffage ou de refroidissement ou des haut-parleurs
B60N 2/90 - Détails ou éléments non prévus ailleurs
A method of assembling a loudspeaker including providing a precursor loudspeaker. The precursor loudspeaker includes a chassis and a voice coil former. The chassis includes a first electrical terminal and a second electrical terminal. A voice coil is mounted on the voice coil former. A first end of a flexible wire is attached to the voice coil former and electrically connected to a first end of the voice coil, and a second end of the flexible wire is attached to the voice coil former and electrically connected to a second end of the voice coil such that the flexible wire forms the loop of wire which extends outwardly from the voice coil former. The method further includes attaching the loop of wire to the first electrical terminal at a first location on the loop of wire and attaching the loop of wire to the second electrical terminal at a second location on the loop of wire.
A loudspeaker is provided comprising: a chassis, a diaphragm, a lead wire for supplying an electrical signal, a drive unit, and a stiffening element. The diaphragm is suspended from the chassis by one or more suspension elements. The drive unit is configured to move the diaphragm along a translational axis based on the electrical signal and comprises a magnet unit, a voice coil and a voice coil former. The stiffening element is a rigid component configured to stiffen a portion of the diaphragm adjacent to the voice coil former. The stiffening element fits around the voice coil former and extends radially outwardly from the voice coil former with respect to the translational axis. The voice coil former includes a conductive strip for conducting the electrical signal from the lead wire to the voice coil. The voice coil is electrically connected to the conductive strip via a first landing surface on the conductive strip, and the lead wire is electrically connected to the conductive strip via a second landing surface on the conductive strip. The first and second landing surfaces are located on opposite sides of the stiffening element with respect to the translational axis.
There is provided a loudspeaker (100) including a frame (200), a diaphragm (300) suspended from the frame and a drive unit (400); wherein the drive unit has a stationary part (420) secured to the frame and a translatable part (440) secured to the diaphragm, the translatable part of the drive unit includes a magnet unit (441) configured to produce a magnetic field in an air gap (442), the stationary part of the drive unit includes a voice coil (422) configured to sit in the air gap when the diaphragm is at rest; and the loudspeaker is operable to energise the voice coil to cause the magnet unit to move along a movement axis (102) relative to the voice coil, thereby moving the diaphragm along the movement axis to produce sound.
A loudspeaker assembly comprises: a loudspeaker, a rear enclosure, and a waveguide. The loudspeaker includes: a diaphragm, a drive unit, and a drive unit frame. The diaphragm has a first radiating surface for radiating sound in a forward direction and a second radiating surface for radiating sound in a rear direction. The first radiating surface and the second radiating surface are located on opposite faces of the diaphragm. The drive unit is configured to move the diaphragm based on an electrical signal. The diaphragm is suspended from the drive unit frame via one or more loudspeaker suspension elements. The rear enclosure encloses a volume configured to receive sound produced by the second radiating surface. The rear enclosure includes one or more regions of porous material configured to allow sound produced by the second radiating surface to exit the volume enclosed by the rear enclosure via the one or more regions of porous material. The waveguide directs sound produced by the first radiating surface in the forward direction towards a mouth of the waveguide. The waveguide includes one or more regions of porous material configured to allow sound produced by the first radiating surface to exit the waveguide via the one or more regions of porous material.
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
09 - Appareils et instruments scientifiques et électriques
35 - Publicité; Affaires commerciales
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Apparatus for recording, transmission or reproduction of sound or images; data processing equipment and computers; amplifiers, audio receivers, audio disc players, audio disc recorders, audio tape players, audio tape recorders, video disc players, video disc recorders, video tape players, video tape recorders, loudspeakers, high density disc (HDD) players, high density disc (HDD) recorders, integrated circuit (IC) memory players, integrated circuit (IC) memory recorders, solid state and flash memory players and recorders, CD players, CD recorders, DVD players, DVD recorders, television receivers, radio receivers; radio transmitters; accessories for audio apparatus; accessories for video apparatus; computers; accessories for computers; media players, media recorders, media player controllers, audio mixers, computer software program for audio apparatus and video apparatus, computer software program for managing audio data and video data, computer software program for editing audio data and video data. Retail services connected with the sale of apparatus for recording, transmission or reproduction of sound or images, loudspeakers, headphones, earphones, amplifiers, subwoofers, tuners, compact disc players, DVD players, video recorders, home cinema equipment, sound bars for home cinema, digital media players, digital music players, digital video players, and cases, parts, fittings and accessories for all the aforesaid goods; retail services connected with the sale of audio streaming devices, video streaming devices, devices for streaming media content over local networks, remote controls, loudspeaker stands, stands for hi-fi equipment, loudspeaker cables, cables for hi-fi equipment, loudspeaker drive units, docking stations, audio receivers, video receivers, and cases, parts, fittings and accessories for all the aforesaid goods; retail services connected with the sale of computer hardware for signal processing of audio and video, computer hardware for replicating digital audio and video signals, computer hardware for use in the field of digital audio and video, signal processing apparatus for use in connection with audio and video signals digital to analogue converters, and cases, parts, fittings and accessories for all the aforesaid goods; retail services connected with the sale of computer software applications connected with the processing of audio and video signals, computer software applications connected with the streaming of audio and video signals, communications apparatus for networks carrying audio and video signals, and cases, parts, fittings and accessories for all the aforesaid goods; retail services connected with the sale of media carrying audio or visual files, downloadable audio and video files, downloadable music files, podcasts, downloadable electronic publications, and parts, fittings and accessories for all the aforesaid goods. Custom manufacturing and assembly of products for others, namely for apparatus for recording, transmission or reproduction of sound or images, loudspeakers, headphones, earphones, amplifiers, subwoofers, tuners, compact disc players, DVD players, video recorders, home cinema equipment, sound bars for home cinema, digital media players, digital music players, digital video players, and cases, parts, fittings and accessories for all the aforesaid goods; custom manufacturing and assembly of products for others, namely for audio streaming devices, video streaming devices, devices for streaming media content over local networks, remote controls, loudspeaker stands, stands for hi-fi equipment, loudspeaker cables, cables for hi-fi equipment, loudspeaker drive units, docking stations, audio receivers, video receivers, and cases, parts, fittings and accessories for all the aforesaid goods; custom manufacturing and assembly of products for others, namely for computer hardware for signal processing of audio and video, computer hardware for replicating digital audio and video signals, computer hardware for use in the field of digital audio and video, signal processing apparatus for use in connection with audio and video signals, digital to analogue converters, and cases, parts, fittings and accessories for all the aforesaid goods; custom manufacturing and assembly of products for others, namely for computer software applications connected with the processing of audio and video signals, computer software applications connected with the streaming of audio and video signals, communications apparatus for networks carrying audio and video signals, and cases, parts, fittings and accessories for all the aforesaid goods; custom manufacturing and assembly of products for others, namely for media carrying audio or visual files, downloadable audio and video files, downloadable music files, podcasts, downloadable electronic publications, and parts, fittings and accessories for all the aforesaid goods. Research, design, product development and testing services provided for others.
There is provided a loudspeaker wherein a frame is moulded with a magnet system such that the frame extends through an aperture in the magnet system. Advantageously, by moulding the frame to extend as a single piece through an aperture in the magnet system, the frame can be attached to the magnet system without glue. In the exemplary embodiments, the aperture in the magnet system extends from one side to another. Here, by forming the frame to extend over the opening at each side, the frame can be securely connected to the magnet system. That is, the aperture in the magnet system extends between a first surface and a second surface of the magnet system. For instance, suitably, the first surface and the second surface are on opposed sides of the magnet system. By the frame extending over at least a portion of the first surface and at least a portion of the second surface, the frame extends over the apertures and securely connects the frame and magnet system, forming a unitary part. There is also therefore provided a method of manufacturing the unitary part and a mould for manufacturing the unitary part for forming a loudspeaker.
B29C 33/00 - Moules ou noyauxLeurs détails ou accessoires
H04R 31/00 - Appareils ou procédés spécialement adaptés à la fabrication des transducteurs ou de leurs diaphragmes
B29C 45/14 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet en incorporant des parties ou des couches préformées, p. ex. moulage par injection autour d'inserts ou sur des objets à recouvrir
H04R 9/02 - Transducteurs du type à bobine mobile, à lame mobile ou à fil mobile Détails
39.
Loudspeaker with inertial exciter comprising a magnet assembly suspended from a mounting frame
A loudspeaker comprising: a mounting frame; an acoustic radiator; a drive unit. The drive unit includes: a magnet assembly including a magnet unit configured to provide a magnetic field in an air gap, wherein the air gap extends around a movement axis of the inertial exciter; a coil assembly, and a drive unit suspension. The coil assembly includes: an attachment portion which provides an attachment between the coil assembly and the acoustic radiator; a voice coil; a voice coil former which extends from the attachment portion into the air gap, wherein the voice coil is mounted to the voice coil former so the voice coil sits in the air gap when the drive unit is at rest; a tubular member, which is positioned radially outwardly of the voice coil former with respect to the movement axis, and which overlaps the voice coil former along a portion of the movement axis.
A loudspeaker includes: a non-perforated membrane having a front surface facing in a forward direction for producing sound to be radiated outwardly from the loudspeaker in the forward direction and a back surface facing in a backward direction opposite to the forward direction, a magnet unit configured to provide a magnetic field in a predetermined region of space, a voice coil rigidly connected to the membrane, and configured to produce in use a magnetic field which interacts with the magnetic field provided by the magnet unit in the predetermined region of space so as to move the membrane along a longitudinal axis of the loudspeaker, a lead wire configured to input a signal to the voice coil. The lead wire is guided to the voice coil via one or more deformed holders. The lead wire remains at a single surface of the membrane without perforating the latter.
There is provided a headrest housing a dipole loudspeaker for producing sound at bass frequencies in a forward direction and in a rear direction, a response 180 degrees out of phase from respective front and rear resonating surfaces. The headrest includes a waveguide formation to isolate sound from travelling through the headrest between the front surface and the rear surface. The headrest also includes an attachment formation, and the attachment formation suspends the first frame of the dipole loudspeaker and acts as a secondary suspension system. By including waveguide formations, the sound from the front surface of the dipole speaker can be guided outside of the headrest, wherein the shortest path from the front surface to the back surface is extended to be around the outside of the headrest. Guiding the sound path to be external to the headrest, prevents internal sound guiding compressing the intended path length.
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
A loudspeaker assembly including: a headrest having a front face facing in a forwards direction and a rear face facing in a rearwards direction, wherein the rearwards direction is opposite to the forwards direction, wherein the headrest is for use with a user's head located in front of the front face of the headrest; a bass dipole loudspeaker mounted to the headrest, wherein the bass dipole loudspeaker includes a drive unit and a diaphragm, wherein the diaphragm has a first radiating surface and a second radiating surface, wherein the first radiating surface and the second radiating surface are located on opposite faces of the diaphragm, wherein the drive unit is configured to move the diaphragm at bass frequencies such that the first and second radiating surfaces produce sound at bass frequencies; a bass waveguide configured to guide bass sound produced by the first radiating surface out from the front face of the headrest via at least one forward-facing opening provided by the bass waveguide, wherein the bass dipole loudspeaker is mounted to the headrest such that bass sound produced by the second radiating surface is able to propagate out from the rear face of the headrest. The bass dipole loudspeaker is mounted to the headrest such that the first radiating surface of the diaphragm is, when the diaphragm is at rest, closer to the rear face of the headrest than to the front face of the headrest. The area of the at least one forward-facing opening is larger than the area of the first radiating surface as projected onto a plane perpendicular to a movement axis of the bass dipole loudspeaker.
H04R 1/30 - Combinaisons de transducteurs avec des pavillons, p. ex. avec des moyens d'équilibrage mécanique
B60N 2/879 - Appuis-tête avec des caractéristiques supplémentaires ne se rapportant pas au positionnement de l’appui-tête, p. ex. des dispositifs de chauffage ou de refroidissement ou des haut-parleurs
H04R 5/02 - Dispositions spatiales ou structurelles de haut-parleurs
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
A loudspeaker including: a chassis: a diaphragm; at least one suspension. The diaphragm is suspended from the chassis by the at least one suspension, wherein the at least one suspension includes a damper having multiple corrugations. The loudspeaker also includes: a drive unit configured to move the diaphragm along a movement axis, wherein the diaphragm has a front face that faces in a forwards direction parallel to the movement axis and a rear face that faces in a rearwards direction parallel to the movement axis; a voice coil former, attached to the diaphragm; a voice coil mounted on the voice coil former, wherein the voice coil forms part of the drive unit; at least one loudspeaker terminal; at least one lead wire which electrically connects the voice coil to the at least one loudspeaker terminal. The/each lead wire is integrated with the damper and, when projected onto a plane perpendicular to the movement axis, traces a path across the damper which deviates substantially from a straight line.
A loudspeaker configured to be mounted in a seat assembly is disclosed. The loudspeaker includes: a diaphragm having a first radiating surface and a second radiating surface, wherein the first radiating surface and the second radiating surface are located on opposite faces of the diaphragm; a drive unit configured to move the diaphragm based on an electrical signal; a loudspeaker support structure, wherein the diaphragm is suspended from the loudspeaker support structure via one or more loudspeaker suspension elements.
A boxed loudspeaker having an isolation enclosure arranged to provide a variable volume of trapped air in the isolation enclosure. The variable volume of the isolation enclosure is provided by dividing the isolation enclosure into a wet volume and a dry volume where the wet and dry volumes are connected by a chimney. An opening is provided through the isolation enclosure to the wet volume. And the entrance to the chimney from the wet volume is configured to be arranged above the opening when installed. Advantageously, a fluid path is provided from the dry volume that surrounds the isolated side of the diaphragm to the external environment via the chimney and wet volume. When the loudspeaker is not submerged in water, the fluid path provides pressure equalisation between the sides of the diaphragm to reduce static force Fn,s. The wet volume acts to trap air in the isolation enclosure when the boxed loudspeaker is submerged into water above the opening. If a temperature drop occurs in the volume of trapped air in the isolation enclosure when submerged, the pressure in the trapped air also drops, which acts to suck in water into the wet volume. By sucking in water, the volume of the trapped air is reduced, therefore the pressure differential between the two sides of the diaphragm can also be minimised. With a minimal pressure differential the static force Fn,s is also minimised even when the boxed loudspeaker is submerged.
A loudspeaker including: a diaphragm having a first radiating surface and a second radiating surface, wherein the first radiating surface and the second radiating surface are located on opposite faces of the diaphragm; a drive unit configured to move the diaphragm based on an electrical signal; a loudspeaker support structure, wherein the diaphragm is suspended from the loudspeaker support structure via one or more loudspeaker suspension elements. The loudspeaker support structure comprises a self-supporting porous shell which encloses a volume configured to receive sound produced by the second radiating surface, wherein at least part of the self-supporting porous shell is provided by at least one self-supporting portion of porous material having a specific airflow resistance in the range 500-10000Pa.s/m so as to allow sound produced by the second radiating surface to exit the volume enclosed by the shell.
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
B06B 1/04 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par électromagnétisme
H04R 5/02 - Dispositions spatiales ou structurelles de haut-parleurs
A head tracking system for use in a headrest, includes at least one optical circuit having a plurality of sensors. Each sensor arranged to detect light reflected from at least portion of an illuminated scene. The portion of the scene contains at least a part of a head to be tracked, and to provides an output signal corresponding to an amount of reflected light detected by the sensor. An acquisition circuit is arranged to receive a plurality of output signals from the plurality of sensors and to derive a frame from said output signals. A processing unit is arranged to receive the frame and to derive an indication of a change in position and/or orientation of the head by comparing the received frame with one or more frames obtained at different moments in time.
G06V 20/40 - ScènesÉléments spécifiques à la scène dans le contenu vidéo
G06V 10/60 - Extraction de caractéristiques d’images ou de vidéos relative aux propriétés luminescentes, p. ex. utilisant un modèle de réflectance ou d’éclairage
G06F 3/03 - Dispositions pour convertir sous forme codée la position ou le déplacement d'un élément
H04R 5/02 - Dispositions spatiales ou structurelles de haut-parleurs
H04S 7/00 - Dispositions pour l'indicationDispositions pour la commande, p. ex. pour la commande de l'équilibrage
A speaker enclosure of the boxed loudspeaker is configured to fail at a low force by fracturing into a master box and a slave box, wherein the slave box collapses into the master box so that, when fractured, the speaker enclosure has a smaller height than before the failure. Suitably, the speaker enclosure is configured with a fracture zone. Here, the fracture zone defines the separation of the speaker enclosure into the master box and the slave box. The master box and slave box include a first portion and a second portion between which the load is applied in the height direction. Here, the first portion and the second portion move towards each other when the speaker enclosure fails along the fracture zone. The fracture zone defines the master box and the slave box so that each of the master box and the slave box has a part of sides of the speaker enclosure in the height direction. Thus, when the slave box collapses into the master box, the portions of the side wall on the slave box overlay the portions of the side wall on the master box when viewed in a plane of the height. This allows the collapsed speaker enclosure when the fracture zone fails to have a smaller extent in the height direction than when the speaker enclosure is operational.
B60R 21/00 - Dispositions ou équipements sur les véhicules pour protéger les occupants ou les piétons ou pour leur éviter des blessures en cas d'accidents ou d'autres incidents dus à la circulation
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
Produits et services
Audible reversing and manoeuvring alarms for vehicles;
audible anti-theft alarms for vehicles; audible warning
systems for vehicles; acoustic vehicle alerting system;
pedestrian warning systems for vehicles.
The present invention provides a loudspeaker assembly (1) for use on the outside of a vehicle. The diaphragm (3) and surround (7) are formed of a single piece of material, the material comprising a single layer woven fabric of orthogonal, woven fibers and a thermoset resin.
A loudspeaker assembly. The loudspeaker assembly includes: a chassis; a loudspeaker, including a drive unit and a diaphragm. The diaphragm includes a body portion, an inner suspension portion and an outer suspension portion, wherein the body portion which extends between the inner suspension portion and the outer suspension portion. The drive unit is configured to move the body portion along a movement axis, wherein the body portion has a front face that faces in a forwards direction parallel to the movement axis and a rear face that faces in a rearwards direction parallel to the movement axis. The outer suspension portion is integral with the body portion, and is attached to the chassis at a first attachment location such that the body portion is suspended from the chassis via the outer suspension portion, wherein the first attachment location has a first position along the movement axis. The inner suspension portion is integral with the body portion, and is attached to the chassis at a second attachment location such that the body portion is suspended from the chassis via the inner suspension portion, wherein the second attachment location has a second position along the movement axis. The first position along the movement axis is separated from the second position along the movement axis.
H04R 7/22 - Dispositions pour monter ou pour tendre des membranes ou des cônes à la périphérie pour fixer le bord de la membrane ou du cône sur son siège
H04R 9/04 - Structure, montage ou centrage de bobine
H04R 31/00 - Appareils ou procédés spécialement adaptés à la fabrication des transducteurs ou de leurs diaphragmes
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
Produits et services
Audible reversing and manoeuvring alarms for vehicles, namely, vehicle movement warning apparatus in the nature of warning horns for vehicles, vehicle movement back-up warning alarms and horns; audible anti-theft alarms for vehicles; acoustic vehicle alerting system for the emission of vehicle warning sounds in the presence of electric drive vehicles comprised of warning horns for vehicles and back-up warning alarms; pedestrian warning systems for vehicles comprised of vehicle movement warning apparatus in the nature of warning horns for vehicles, vehicle movement alarms back-up warning alarms and horns
The present invention relates to a method for providing inside a cabin of a motor vehicle audible feedback to a sound signal intended as a horn signal. The method comprises : - playing a first signal being a horn signal via a first loudspeaker (2) arranged for emitting the horn signal mainly away from the motor vehicle, - playing, substantially simultaneously with and in response to the horn signal, a second signal via a second loudspeaker (4) arranged for emitting the signal mainly towards the inside of the cabin.
A loudspeaker assembly for use outdoors. The loudspeaker assembly includes: a loudspeaker, including a drive unit and a diaphragm, wherein the drive unit is configured to move the diaphragm along a movement axis, wherein the diaphragm has a front face that faces in a forwards direction parallel to the movement axis and a rear face that faces in a rearwards direction parallel to the movement axis, wherein the loudspeaker has a front face that faces in the forwards direction and includes the front face of the diaphragm; a grille, positioned in front of the front face of the loudspeaker, with a rear face of the grille facing in the rearwards direction toward the front face of the loudspeaker, and with a front face of the grille facing in the forwards direction. The grille is configured to permit sound produced by the front face of the diaphragm to pass through the grille when the loudspeaker is in use, and to inhibit the ingress of water incident on the front face of the grille from entering into a space enclosed between the rear face of the grille and the front face of the loudspeaker when the loudspeaker is in use; wherein V1/V2 ≤ 0.7, wherein V1 is a volume of space [cm3] enclosed between the front face of the loudspeaker when the diaphragm is in its rest position and the rear face of the grille, and V2 is a volume of space [cm3] enclosed between the front face of the loudspeaker when the diaphragm is in its rest position and a plane perpendicular to the movement axis that has a position along the movement axis corresponding to a forwardmost position of the grille on the movement axis.
A dipole loudspeaker for producing sound at bass frequencies. The dipole loudspeaker includes: a diaphragm having a first radiating surface and a second radiating surface, a drive unit configured to move the diaphragm at bass frequencies such that the first and second radiating surfaces produce sound at bass frequencies, and a frame. The loudspeaker is for use with an ear of a user being located at a listening position that is in front of the first radiating surface and is 40 cm or less from the first radiating surface.
H04R 1/32 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
H04R 5/02 - Dispositions spatiales ou structurelles de haut-parleurs
A loudspeaker includes a diaphragm having a front surface facing in a forward direction for producing sound to be radiated outwardly from the loudspeaker in the forward direction and a back surface facing in a backward direction that is opposite to the forward direction; a magnet unit configured to provide magnetic field in a magnetic gap. The magnetic gap is located between a first portion of the magnet unit located radially inwards of the magnetic gap with respect to a longitudinal axis of the loudspeaker and a second portion of the magnet unit located radially outwards of the magnetic gap with respect to the longitudinal axis of the loudspeaker. A voice coil is configured to sit in the magnetic gap when the diaphragm is in a rest position.
A dipole loudspeaker for producing sound at bass frequencies. The dipole loudspeaker includes: a diaphragm having a first radiating surface and a second radiating surface, wherein the first radiating surface and the second radiating surface are located on opposite faces of the diaphragm; a drive unit configured to move the diaphragm at bass frequencies such that the first and second radiating surfaces produce sound at bass frequencies, wherein the sound produced by the first radiating surface is in antiphase with sound produced by the second radiating surface; a frame, wherein the diaphragm is suspended from the frame via one or more suspension elements, wherein the frame is configured to allow sound produced by the first radiating surface to propagate out from a first side of the dipole loudspeaker and to allow sound produced by the second radiating surface to propagate out from a second side of the dipole loudspeaker. The diaphragm includes a region of porous material having a specific airflow resistance in the range 5-5000 Pa·s/m, wherein the diaphragm is configured to permit airflow through at least part of said region of porous material from the first radiating surface of the diaphragm to the second radiating surface of the diaphragm.
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
The present invention relates to an audible vehicle warning system arranged for generating a horn signal and comprising - a loudspeaker system comprising a loudspeaker arranged for outputting sound signals at least in a selected frequency range comprising at least frequencies from 400 to 2 kHz, - a sound library comprising one or more sound signals intended as a horn signal when output by said loudspeaker, each of the sound signals having a 1/3 octave frequency band which is taken as a reference frequency band, said reference frequency band containing at least a predetermined part of the total power of the sound signal, and wherein a 1/3 octave frequency band averaged response of the loudspeaker system has in a 1/3 octave frequency band corresponding to the reference frequency band an amplitude level which is at least a given amount of dB above the average amplitude level in the selected frequency range.
A loudspeaker for producing sound at bass frequencies including: a diaphragm; a frame, wherein a proximal end of the diaphragm is suspended from the frame by at least one proximal suspension element, wherein the at least one proximal suspension element is configured to substantially prevent translational movement of the proximal end of the diaphragm relative to the frame, whilst permitting translational movement of a distal end of the diaphragm which is opposite to the proximal end of the diaphragm; a drive unit configured to move the distal end of the diaphragm based on an electrical signal.
H04R 7/20 - Dispositions pour monter ou pour tendre des membranes ou des cônes à la périphérie pour fixer une membrane ou un cône élastiquement à un support au moyen d'un matériau flexible, ressorts, fils ou cordes
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 1/06 - Aménagements des branchements de circuitsRéduction des efforts sur les branchements de circuits
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
A loudspeaker system comprising: a loudspeaker assembly including a diaphragm, a magnet assembly, and a voice coil assembly, wherein the magnet assembly and voice coil assembly are drivably coupled to the diaphragm to displace the diaphragm to transmit pressure waves as audible sound, an enclosure arranged to enclose the loudspeaker assembly and including a back face and a front face, wherein said back face extends over the magnet assembly, and the magnet assembly is mechanically coupled to the back face and/or side face of the enclosure and the diaphragm is coupled to a front face of the enclosure, wherein the magnet assembly and diaphragm are directly connected to each other by a collapsible basket or said loud speaker assembly does not comprise a basket coupling the magnet assembly and diaphragm.
H04B 1/00 - Détails des systèmes de transmission, non couverts par l'un des groupes Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission
Method for Positioning a Shaker and Use of the Shaker for Vibration Control The present invention relates to a method for positioning a shaker (1) in a seat comprising a headrest (103) and a backrest (104), wherein the headrest comprises a bass loudspeaker (105). The method is characterised in that the shaker is positioned in the headrest. The seat is typically a seat in a motor vehicle or a seat in a theatre or a massage chair or an entertainment chair.
H04R 29/00 - Dispositifs de contrôleDispositifs de tests
H04R 3/04 - Circuits pour transducteurs pour corriger la fréquence de réponse
B60N 2/879 - Appuis-tête avec des caractéristiques supplémentaires ne se rapportant pas au positionnement de l’appui-tête, p. ex. des dispositifs de chauffage ou de refroidissement ou des haut-parleurs
H04R 5/02 - Dispositions spatiales ou structurelles de haut-parleurs
A dipole loudspeaker assembly for producing sound at bass frequencies. The dipole loudspeaker assembly comprises a dipole loudspeaker including a diaphragm having a first radiating surface and a second radiating surface, wherein the first radiating surface and the second radiating surface are located on opposite faces of the diaphragm. The dipole loudspeaker includes a drive unit configured to move the diaphragm along a movement axis at bass frequencies such that the first and second radiating surfaces produce sound at bass frequencies, wherein the sound produced by the first radiating surface is in antiphase with sound produced by the second radiating surface. The dipole loudspeaker includes a drive unit frame. The diaphragm is suspended from the drive unit frame via at least one drive unit suspension, wherein the drive unit frame is configured to, in use, allow sound produced by the first radiating surface to propagate out from a first side of the dipole loudspeaker and to allow sound produced by the second radiating surface to propagate out from a second side of the dipole loudspeaker. The dipole loudspeaker assembly includes a mounting frame, wherein the drive unit frame is suspended from the mounting frame via one or more mounting frame suspensions. The/each mounting frame suspension, as projected onto a plane perpendicular to the movement axis, at least partially overlaps with one or more elements selected from the diaphragm and the at least one drive unit suspension as projected onto the same plane. At least one mounting frame suspension is formed in a gap between the drive unit frame and the mounting frame and extends substantially continuously around the drive unit frame.
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 5/02 - Dispositions spatiales ou structurelles de haut-parleurs
A loudspeaker assembly for producing sound at bass frequencies. The loudspeaker assembly includes: a loudspeaker, including: a diaphragm having a first radiating surface and a second radiating surface, wherein the first radiating surface and the second radiating surface are located on opposite faces of the diaphragm; a drive unit configured to move the diaphragm along a movement axis at bass frequencies such that the first and second radiating surfaces produce sound at bass frequencies, wherein the sound produced by the first radiating surface is in antiphase with sound produced by the second radiating surface; a drive unit frame, wherein the diaphragm is suspended from the drive unit frame via at least one drive unit suspension; and a mounting frame, wherein the drive unit frame is suspended from the mounting frame via a mounting frame suspension system that includes at least one mounting frame suspension. The loudspeaker assembly also includes an adjustment mechanism configured to adjust the mounting frame suspension system so as to change the extent to which vibrations generated by the loudspeaker reach the mounting frame via the mounting frame suspension system when the loudspeaker is in use.
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 7/18 - Dispositions pour monter ou pour tendre des membranes ou des cônes à la périphérie
H04R 7/20 - Dispositions pour monter ou pour tendre des membranes ou des cônes à la périphérie pour fixer une membrane ou un cône élastiquement à un support au moyen d'un matériau flexible, ressorts, fils ou cordes
H04R 5/02 - Dispositions spatiales ou structurelles de haut-parleurs
An inertial exciter for use with an acoustic radiator, the inertial exciter comprising: a magnet assembly including a magnet unit configured to provide a magnetic field in an air gap, wherein the air gap extends around a movement axis of the inertial exciter; a coil assembly including: an attachment portion configured to provide an attachment between the coil assembly and the acoustic radiator; a voice coil; a voice coil former which extends from the attachment portion into the air gap.
H04R 7/20 - Dispositions pour monter ou pour tendre des membranes ou des cônes à la périphérie pour fixer une membrane ou un cône élastiquement à un support au moyen d'un matériau flexible, ressorts, fils ou cordes
H04R 9/04 - Structure, montage ou centrage de bobine
H04R 31/00 - Appareils ou procédés spécialement adaptés à la fabrication des transducteurs ou de leurs diaphragmes
66.
LOUDSPEAKER WITH INTERIAL EXCITER COMPRISING A MAGNET ASSEMBLY SUSPENDED FROM A MOUNTING FRAME
A loudspeaker comprising: a mounting frame; an acoustic radiator; a drive unit. The drive unit includes: a magnet assembly including a magnet unit configured to provide a magnetic field in an air gap, wherein the air gap extends around a movement axis of the inertial exciter; a coil assembly, and at least one drive unit suspension. The coil assembly includes: an attachment portion which provides an attachment between the coil assembly and the acoustic radiator; a voice coil; a voice coil former which extends from the attachment portion into the air gap, wherein the voice coil is mounted to the voice coil former so that the voice coil sits in the air gap when the drive unit is at rest; a tubular member, which is positioned radially outwardly of the voice coil former with respect to the movement axis, and which overlaps the voice coil former along at least a portion of the movement axis. The at least one drive unit suspension is attached to the tubular member and a part of the magnet assembly positioned radially outwardly of the tubular member so that the acoustic radiator is suspended from the magnet assembly via the coil assembly by the at least one drive unit suspension. The magnet unit assembly is suspended from the mounting frame by at least one mounting frame suspension.
There is provided a headrest housing a dipole loudspeaker for producing sound at bass frequencies in a forward direction and in a rear direction, a response 180 degrees out of phase from respective front and rear resonating surfaces. The headrest includes a waveguide formation to isolate sound from travelling through the headrest between the front surface and the rear surface. The headrest also includes an attachment formation, and the attachment formation suspends the first frame of the dipole loudspeaker and acts as a secondary suspension system. By including waveguide formations, the sound from the front surface of the dipole speaker can be guided outside of the headrest, wherein the shortest path from the front surface to the back surface is extended to be around the outside of the headrest. Guiding the sound path to be external to the headrest, prevents internal sound guiding compressing the intended path length. Also, with the structure of the headrest being formed from a resilient material to provide comfort to the listener, the attachment formations can be integrally formed from the resilient material with the resilient nature of the material providing the suspension to the first frame.
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
The present invention relates to a loudspeaker comprising - a non-perforated membrane (10) having a front surface facing in a forward direction for producing sound to be radiated outwardly from the loudspeaker in the forward direction and a back surface facing in a backward direction opposite to the forward direction, - a magnet unit (4) configured to provide a magnetic field in a predetermined region of space, - a voice coil (25) rigidly connected to the membrane, said voice coil being configured to produce in use a magnetic field which interacts with the magnetic field provided by the magnet unit in the predetermined region of space so as to move the membrane along a longitudinal axis of the loudspeaker, - a lead wire (40) configured to input a signal to the voice coil, characterised in that the lead wire is guided to the voice coil via one or more deformed holders (), said deformed holders forming an integral part of the membrane, whereby the lead wire remains at a single surface of the membrane without perforating the latter.
A loudspeaker configured to be mounted in a seat assembly. The loudspeaker includes: a diaphragm having a first radiating surface and a second radiating surface, wherein the first radiating surface and the second radiating surface are located on opposite faces of the diaphragm; a drive unit configured to move the diaphragm based on an electrical signal; a loudspeaker support structure, wherein the diaphragm is suspended from the loudspeaker support structure via one or more loudspeaker suspension elements. The loudspeaker support structure encloses a volume configured to receive sound produced by the second radiating surface, wherein the loudspeaker support structure includes one or more regions of porous material having a specific airflow resistance in the range 300-5000Pa.s/m, wherein the one or more regions of porous material are configured to allow sound produced by the second radiating surface to exit the volume enclosed by the loudspeaker support structure via the one or more regions of porous material. A loudspeaker having such properties has been found by the present inventors to be capable of delivering sound in a mid-high frequency range (e.g. 300Hz-3kHz) that is highly directional, whilst suppressing blowing noises that might otherwise be distracting for a user whose ear(s) are located at a listening position that is near to the loudspeaker.
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
A waveguide assembly for guiding sound includes a chassis that provides a cavity configured to receive sound propagating in a forwards direction along a primary axis of the waveguide assembly; a fixed waveguide that is fixed with respect to the chassis and positioned on the primary axis of the waveguide assembly, wherein the fixed waveguide is spaced apart from the chassis and is configured to guide sound received by the cavity through at least one opening formed between the fixed waveguide element and the chassis; a moveable waveguide that is moveable with respect to the chassis between: a standby position in which the moveable waveguide is configured to obstruct the at least one opening and form a forward-facing surface of the waveguide assembly; an operational position in which the moveable waveguide is configured to allow sound to exit the cavity through the at least one opening.
G10K 11/30 - Procédés ou dispositifs pour transmettre, conduire ou diriger le son pour focaliser ou pour diriger le son, p. ex. balayage utilisant la réfraction, p. ex. lentilles acoustiques
G10K 11/28 - Procédés ou dispositifs pour transmettre, conduire ou diriger le son pour focaliser ou pour diriger le son, p. ex. balayage utilisant la réflexion, p. ex. réflecteurs paraboliques
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
A method for making a loudspeaker enclosure including providing a precursor loudspeaker enclosure, a first port, a second port, an adhesive channel which extends from the first port to the second port, injecting unhardened adhesive into the first port, and hardening the adhesive. The precursor loudspeaker enclosure includes a cable channel which extends from a cable opening in an outer wall of the enclosure to an interior space within the enclosure. The cable is located in the cable channel such that the cable extends from outside the enclosure and through the cable channel to the interior space within the enclosure. The adhesive channel extends around the cable located in the cable channel and is partly defined by an outer surface of the cable. Injecting unhardened adhesive into the first port forces unhardened adhesive along the adhesive channel such that it is brought into contact with the outer surface of the cable. Hardening the adhesive attaches the cable to the enclosure and seals the cable channel.
A loudspeaker unit for producing sound at bass frequencies an array of two or more diaphragms. The first radiating surface and the second radiating surface are located on opposite faces of the diaphragm, and one or more of the diaphragms are included in a first subset of the diaphragms and one or more of the diaphragms are included in a second subset of the diaphragms; a plurality of drive units.
H04R 3/12 - Circuits pour transducteurs pour distribuer des signaux à plusieurs haut-parleurs
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
The present invention relates to a head tracking system (1) for use with a headrest, comprising: • at least one optical circuit (2) comprising a plurality of sensors (4), each sensor arranged to detect light reflected from at least portion of an illuminated scene, said portion of said scene containing at least a part of a head to be tracked, and to provide an output signal corresponding to an amount of reflected light detected by the sensor, • an acquisition circuit (6) arranged to receive a plurality of output signals from said plurality of sensors and to derive a frame from said output signals, • a processing unit (8) arranged to receive said frame and to derive an indication of a change in position and/or orientation of the head by comparing said received frame with one or more frames obtained at different moments in time.
A loudspeaker system comprising: an acoustically sealed enclosure including a front wall and a back wall; a diaphragm coupled to the front wall of the enclosure; a magnet assembly, and; a voice coil assembly including a voice coil former carrying a voice coil, the voice coil former at a distal end operatively coupling the voice coil to the magnet assembly and at a proximal end coupling to the diaphragm, wherein the magnet assembly includes one or more magnets, the magnet assembly coupled at a first end to the back wall, wherein a depth D1 extends from the front wall of the enclosure to an exposed opposed face of a magnet or washer coupled thereto at a second end of the magnet assembly, wherein the voice coil former has a depth, which extends from the proximal end to the distal end, of D2 that is at least 50% of depth D1.
A dipole loudspeaker for producing sound at bass frequencies. The dipole loudspeaker includes: a diaphragm having a first radiating surface and a second radiating surface, a drive unit configured to move the diaphragm at bass frequencies such that the first and second radiating surfaces produce sound at bass frequencies, and a frame. The loudspeaker is for use with an ear of a user being located at a listening position that is in front of the first radiating surface and is 40 cm or less from the first radiating surface.
H04R 1/32 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
H04R 5/02 - Dispositions spatiales ou structurelles de haut-parleurs
A method of electrically interconnecting a speaker terminal and voice coil wire of a loudspeaker assembly with a lead wire, the method comprising: forming a first electrical connection between a first end of the lead wire and one of the speaker terminal or voice coil wire; dispensing the lead wire from a wire outlet of a wire repository of a lead wire dispensing system and moving the wire outlet from proximal the first electrical connection to proximal the other of the speaker terminal or voice coil wire with the lead wire connected to the first electrical connection and the wire repository to draw the lead wire from the wire outlet, forming a second electrical connection between a portion of the lead wire and the other of the speaker terminal or voice coil wire; cutting the lead wire to form a second end proximal the second electrical connection.
A loudspeaker including: a diaphragm having a front surface facing in a forward direction for producing sound to be radiated outwardly from the loudspeaker in the forward direction and a back surface facing in a backward direction that is opposite to the forward direction; a magnet unit configured to provide magnetic field in a magnetic gap, wherein the magnetic gap is located between a first portion of the magnet unit located radially inwards of the magnetic gap with respect to a longitudinal axis of the loudspeaker and a second portion of the magnet unit located radially outwards of the magnetic gap with respect to the longitudinal axis of the loudspeaker; a voice coil, configured to sit in the magnetic gap when the diaphragm is in a rest position, and is further configured to produce a magnetic field in use which interacts with the magnetic field provided by the magnet unit in the magnetic gap so as to move the diaphragm along the longitudinal axis of the loudspeaker. The height of the voice coil in the direction of the longitudinal axis of the loudspeaker is less than the height of the magnetic gap in the direction of the longitudinal axis of the loudspeaker. The voice coil is rigidly connected to the diaphragm via a rigid connector, wherein the rigid connector includes ribs which extend radially outwardly from the voice coil through slits in the second portion of the magnetic unit. The first portion of the magnet unit and the second portion of the magnet unit are configured such that magnetic flux density of the magnetic field in the magnetic gap reaches a first local maximum at a first peak location along the longitudinal axis of the loudspeaker and a second local maximum at a second peak location along the longitudinal axis of the loudspeaker, wherein the first peak location and the second peak location are separated spatially in the direction of the longitudinal axis of the loudspeaker by a valley region in which the magnetic flux density is lower than both the first local maximum and the second local maximum, wherein the voice coil is configured to be positioned in the valley region when the diaphragm is in its rest position.
A loudspeaker for producing sound at bass frequencies including: a diaphragm; a frame, wherein a proximal end of the diaphragm is suspended from the frame by at least one proximal suspension element, wherein the at least one proximal suspension element is configured to substantially prevent translational movement of the proximal end of the diaphragm relative to the frame, whilst permitting translational movement of a distal end of the diaphragm which is opposite to the proximal end of the diaphragm; a drive unit configured to move the distal end of the diaphragm based on an electrical signal.
A dipole loudspeaker for producing sound at bass frequencies. The dipole loudspeaker includes: a diaphragm having a first radiating surface and a second radiating surface, wherein the first radiating surface and the second radiating surface are located on opposite faces of the diaphragm; a drive unit configured to move the diaphragm at bass frequencies such that the first and second radiating surfaces produce sound at bass frequencies, wherein the sound produced by the first radiating surface is in antiphase with sound produced by the second radiating surface; a frame, wherein the diaphragm is suspended from the frame via one or more suspension elements, wherein the frame is configured to allow sound produced by the first radiating surface to propagate out from a first side of the dipole loudspeaker and to allow sound produced by the second radiating surface to propagate out from a second side of the dipole loudspeaker. The diaphragm includes a region of porous material having a specific airflow resistance in the range 5-5000Pa.s/m, wherein the diaphragm is configured to permit airflow through at least part of said region of porous material from the first radiating surface of the diaphragm to the second radiating surface of the diaphragm.
A loudspeaker including a diaphragm having a front surface facing in a forward direction for producing sound to be radiated outwardly from the loudspeaker in the forward direction and a back surface facing in a backward direction that is opposite to the forward direction; a magnet unit configured to provide magnetic field in a predetermined region of space; a voice coil rigidly connected to the diaphragm, wherein the voice coil is configured to produce a magnetic field in use which interacts with the magnetic field provided by the magnet unit in the predetermined region of space so as to move the diaphragm along a longitudinal axis of the loudspeaker; a flexible dustcap attached to the diaphragm and an attachment surface of the loudspeaker that is fixed with respect to the magnet unit and is located radially inwards of the voice coil relative to the longitudinal axis of the loudspeaker.
A loudspeaker system comprising: a loudspeaker assembly including a diaphragm, a magnet assembly, and a voice coil assembly, wherein the magnet assembly and voice coil assembly are driveably coupled to the diaphragm to displace the diaphragm to transmit pressure waves as audible sound, an enclosure arranged to enclose the loudspeaker assembly and including a back face and a front face, wherein said back face extends over the magnet assembly, and the magnet assembly is mechanically coupled to the back face and/or side face of the enclosure and the diaphragm is coupled to a front face of the enclosure, wherein the magnet assembly and diaphragm are directly connected to each other by a collapsible basket or said loud speaker assembly does not comprise a basket coupling the magnet assembly and diaphragm.
An inertial exciter for use with an acoustic radiator, the inertial exciter comprising: a magnet assembly including a magnet unit configured to provide a magnetic field in an air gap, wherein the air gap extends around a movement axis of the inertial exciter; a coil assembly including: an attachment portion configured to provide an attachment between the coil assembly and the acoustic radiator; a voice coil; a voice coil former which extends from the attachment portion into the air gap, wherein the voice coil is mounted to the voice coil former so that the voice coil sits in the air gap when the inertial exciter is at rest; a tubular member, which is positioned radially outwardly of the voice coil former with respect to the movement axis, and which overlaps the voice coil former along at least a portion of the movement axis; at least one suspension attached to the tubular member and a part of the magnet assembly positioned radially outwardly of the tubular member so that, when the coil assembly is attached to the acoustic radiator via the attachment portion, the magnet assembly is suspended from the acoustic radiator via the coil assembly by the at least one suspension.
H04R 9/04 - Structure, montage ou centrage de bobine
H04R 7/20 - Dispositions pour monter ou pour tendre des membranes ou des cônes à la périphérie pour fixer une membrane ou un cône élastiquement à un support au moyen d'un matériau flexible, ressorts, fils ou cordes
H04R 31/00 - Appareils ou procédés spécialement adaptés à la fabrication des transducteurs ou de leurs diaphragmes
A loudspeaker assembly comprising: a first loudspeaker configured to receive a first electrical signal, and to produce sound along a first principal radiating axis based on the first electrical signal; a second loudspeaker configured to receive a second electrical signal, and to produce sound along a second principal radiating axis based on the second electrical signal; a third loudspeaker configured to receive a third electrical signal, and to produce sound along a third principal radiating axis based on the third electrical signal; and a control unit configured to produce each of the first, second and third electrical signals based on an input signal representative of audio. There is a first angular offset between the first and second principal radiating axes and a second angular offset between the first and third principal radiating axes.
H04R 3/12 - Circuits pour transducteurs pour distribuer des signaux à plusieurs haut-parleurs
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
A waveguide assembly for guiding sound, the waveguide assembly including: a chassis that provides a cavity configured to receive sound propagating in a forwards direction along a primary axis of the waveguide assembly; a fixed waveguide that is fixed with respect to the chassis and positioned on the primary axis of the waveguide assembly, wherein the fixed waveguide is spaced apart from the chassis and is configured to guide sound received by the cavity through at least one opening formed between the fixed waveguide element and the chassis; a moveable waveguide that is moveable with respect to the chassis between: a standby position in which the moveable waveguide is configured to obstruct the at least one opening and, together with the fixed waveguide, form a forward-facing surface of the waveguide assembly; an operational position in which the moveable waveguide is configured to allow sound to exit the cavity through the at least one opening; wherein the moveable waveguide is configured to be moved from the standby position to the operational position by retracting at least a part of the moveable waveguide in a rearwards direction along the primary axis of the waveguide assembly, wherein the rearwards direction is opposite to the forwards direction.
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
A loudspeaker unit for producing sound at bass frequencies. The loudspeaker unit includes: an array of two or more diaphragms, each diaphragm in the array having a first radiating surface and a second radiating surface, wherein the first radiating surface and the second radiating surface are located on opposite faces of the diaphragm, and wherein one or more of the diaphragms are included in a first subset of the diaphragms and one or more of the diaphragms are included in a second subset of the diaphragms; a plurality of drive units, wherein each drive unit is configured to move a respective one of the diaphragms in the array based on a respective electrical signal; a frame, wherein each diaphragm in the array is suspended from the frame via one or more suspension elements such that the first radiating surfaces are facing in a first direction and the second radiating surfaces are facing in an opposite second direction, wherein the frame is configured to allow sound produced by the first radiating surfaces to propagate out from a first side of the loudspeaker unit in the first direction and to allow sound produced by the second radiating surfaces to propagate out from a second side of the loudspeaker unit in the second direction; drive circuitry configured to provide each drive unit with a respective electrical signal derived from the same audio source such that the electrical signal(s) provided to the one or more drive units configured to move the first subset of diaphragms is/are out of phase with respect to the electrical signal(s) provided to the one or more drive units configured to move the second subset of diaphragms.
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
A loudspeaker unit for producing sound at bass frequencies. The loudspeaker unit includes: a diaphragm having a first radiating surface and a second radiating surface, wherein the first radiating and second radiating surfaces are located on opposite faces of the diaphragm, and wherein the loudspeaker unit is configured to allow sound produced by the first and second radiating surfaces to propagate out from the loudspeaker unit; a drive unit configured to move the diaphragm based on an electrical signal; a frame from which the diaphragm is suspended via one or more suspension elements; drive circuitry configured to provide the drive unit with an electrical signal derived from an audio source; a sound guide configured to guide sound produced by the first or second radiating surface to at least one outlet such that the sound propagates out of the loudspeaker unit from the at least one outlet, the/each outlet being remote from said first or second radiating surface. The loudspeaker unit is preferably configured so that, at the locations at which sound propagates out from the loudspeaker, and preferably in the operational bandwidth of the loudspeaker unit, the sound produced by the/each first radiating surface is substantially out of phase with the sound produced by the/each second radiating surface.
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
A loudspeaker including a diaphragm having a front surface facing in a forward direction for producing sound to be radiated outwardly from the loudspeaker in the forward direction and a back surface facing in a backward direction that is opposite to the forward direction; a magnet unit configured to provide magnetic field in a predetermined region of space; a voice coil rigidly connected to the diaphragm, wherein the voice coil is configured to produce a magnetic field in use which interacts with the magnetic field provided by the magnet unit in the predetermined region of space so as to move the diaphragm along a longitudinal axis of the loudspeaker; a flexible dustcap attached to the diaphragm and an attachment surface of the loudspeaker that is fixed with respect to the magnet unit and is located radially inwards of the voice coil relative to the longitudinal axis of the loudspeaker.
A dipole loudspeaker for producing sound at bass frequencies. The dipole loudspeaker includes: a diaphragm having a first radiating surface and a second radiating surface, wherein the first radiating surface and the second radiating surface are located on opposite faces of the diaphragm, and wherein the first and second radiating surfaces each have a surface area of at least 100cm2; a drive unit configured to move the diaphragm at bass frequencies such that the first and second radiating surfaces produce sound at bass frequencies, wherein the sound produced by the first radiating surface is in antiphase with sound produced by the second radiating surface; a frame, wherein the diaphragm is suspended from the frame via one or more suspension elements, wherein the frame is configured to allow sound produced by the first radiating surface to propagate out from a first side of the dipole loudspeaker and to allow sound produced by the second radiating surface to propagate out from a second side of the dipole loudspeaker wherein the loudspeaker is for use with an ear of a user being located at a listening position that is in front of the first radiating surface and is 40cm or less from the first radiating surface.
H04R 1/32 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
H04R 5/02 - Dispositions spatiales ou structurelles de haut-parleurs
09 - Appareils et instruments scientifiques et électriques
35 - Publicité; Affaires commerciales
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Apparatus for recording, transmission or reproduction of sound and images; data processing equipment, data processing equipment, namely, digital signal processing hardware and software, and computers; amplifiers, audio receivers, audio disc players, audio disc recorders, audio tape players, audio tape recorders, video disc players, video disc recorders, video tape players, video tape recorders, loudspeakers, high density disc (HDD) players, high density disc (HDD) recorders, integrated circuit (IC) memory players, integrated circuit (IC) memory recorders, solid state and flash memory players and recorders, CD players, CD recorders, DVD players, DVD recorders, television receivers, radio receivers, radio transmitters, accessories for audio apparatus, namely, audio speaker covers, equalizers, and audio circuit boards, accessories for video apparatus, namely, a support arm, vest and sled for film and video cameras to absorb shaking moves while shooting, video circuit boards, car video recorders, audio accessories for computers, namely, loud speakers, wireless speaker, head sets, microphones, cables, audio receivers, sound cards, USB audio adaptors, USB audio interfaces; media players, media recorders, media player controllers, audio mixers, namely, downloadable, recorded, hardware mixers, computer software program for audio apparatus and video apparatus that creates music videos, enables editing of sound and film, processes digital sound and images, downloadable and recorded computer software program for managing audio data and video data, downloadable and recorded computer software program for editing audio data and video Reseller services, namely, distributorship services in the field of apparatus for recording, transmission or reproduction of sound or images, loudspeakers, headphones, earphones, amplifiers, subwoofers, tuners, compact disc players, DVD players, video recorders, home cinema equipment, sound bars for home cinema, digital media players, digital music players, digital video players, audio streaming devices, video streaming devices, devices for streaming media content over local networks, remote controls, loudspeaker stands, stands for hi-fi equipment, loudspeaker cables, cables for hi-fi equipment, loudspeaker drive units, docking stations, audio receivers, video receivers, computer hardware for signal processing of audio and video, computer hardware for replicating digital audio and video signals, computer hardware for use in the field of digital audio and video, signal processing apparatus for use in connection with audio and video signals, digital to analogue converters, computer software applications connected with the processing of audio and video signals, computer software applications connected with the streaming of audio and video signals, communications apparatus for networks carrying audio and video signals, cases for all the aforesaid goods, media carrying audio or visual files, downloadable audio and video files, downloadable music files, podcasts, downloadable electronic publications, and parts, fittings and accessories for all the aforesaid goods Custom manufacturing and assembly of audio and video equipment for others Research, design, development and testing services provided for others in the field of audio and video technology
A loudspeaker including a chassis, a drive unit and a diaphragm. The drive unit has a stationary part secured to the chassis and a translatable part secured to the diaphragm. An outer edge of the diaphragm is suspended from the chassis by an edge suspension. The edge suspension has a plurality of straight portions, each straight portion having a respective first surface and a respective second surface which meet along an edge to provide a spring which permits the diaphragm to be moved relative to the chassis by the drive unit. The edge suspension has at least one corner portion, wherein the/each corner portion joins two of the straight portions together and includes at least one geometrical interruption formed therein.
H04R 7/00 - Membranes pour transducteurs électromécaniquesCônes
H04R 7/20 - Dispositions pour monter ou pour tendre des membranes ou des cônes à la périphérie pour fixer une membrane ou un cône élastiquement à un support au moyen d'un matériau flexible, ressorts, fils ou cordes
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 9/02 - Transducteurs du type à bobine mobile, à lame mobile ou à fil mobile Détails
09 - Appareils et instruments scientifiques et électriques
35 - Publicité; Affaires commerciales
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Apparatus for recording, transmission or reproduction of sound or images; data processing equipment and computers; amplifiers, audio receivers, audio disc players, audio disc recorders, audio tape players, audio tape recorders, video disc players, video disc recorders, video tape players, video tape recorders, loudspeakers, high density disc (HDD) players, high density disc (HDD) recorders, integrated circuit (IC) memory players, integrated circuit (IC) memory recorders, solid state and flash memory players and recorders, CD players, CD recorders, DVD players, DVD recorders, television receivers, radio receivers; radio transmitters; accessories for audio apparatus; accessories for video apparatus; computers; accessories for computers; media players, media recorders, media player controllers, audio mixers, computer software program for audio apparatus and video apparatus, computer software program for managing audio data and video data, computer software program for editing audio data and video data. Retail services connected with the sale of apparatus for recording, transmission or reproduction of sound or images, loudspeakers, headphones, earphones, amplifiers, subwoofers, tuners, compact disc players, DVD players, video recorders, home cinema equipment, sound bars for home cinema, digital media players, digital music players, digital video players, audio streaming devices, video streaming devices, devices for streaming media content over local networks, remote controls, loudspeaker stands, stands for hi-fi equipment, loudspeaker cables, cables for hi-fi equipment, loudspeaker drive units, docking stations, audio receivers, video receivers, computer hardware for signal processing of audio and video, computer hardware for replicating digital audio and video signals, computer hardware for use in the field of digital audio and video, signal processing apparatus for use in connection with audio and video signals, digital to analogue converters, computer software applications connected with the processing of audio and video signals, computer software applications connected with the streaming of audio and video signals, communications apparatus for networks carrying audio and video signals, cases for all the aforesaid goods, media carrying audio or visual files, downloadable audio and video files, downloadable music files, podcasts, downloadable electronic publications, and parts, fittings and accessories for all the aforesaid goods. Custom manufacturing and assembly of products for others, namely for apparatus for recording, transmission or reproduction of sound or images, loudspeakers, headphones, earphones, amplifiers, subwoofers, tuners, compact disc players, DVD players, video recorders, home cinema equipment, sound bars for home cinema, digital media players, digital music players, digital video players, audio streaming devices, video streaming devices, devices for streaming media content over local networks, remote controls, loudspeaker stands, stands for hi-fi equipment, loudspeaker cables, cables for hi-fi equipment, loudspeaker drive units, docking stations, audio receivers, video receivers, computer hardware for signal processing of audio and video, computer hardware for replicating digital audio and video signals, computer hardware for use in the field of digital audio and video, signal processing apparatus for use in connection with audio and video signals, digital to analogue converters, computer software applications connected with the processing of audio and video signals, computer software applications connected with the streaming of audio and video signals, communications apparatus for networks carrying audio and video signals, cases for all the aforesaid goods, media carrying audio or visual files, downloadable audio and video files, downloadable music files, podcasts, downloadable electronic publications, and parts, fittings and accessories for all the aforesaid goods. Research, design, product development and testing services provided for others.
Speakers for locating in a vehicle exhaust system having a speaker surround that is formed from a rubber compounded using a polyacrylate polymer. Speakers having a speaker surround that is integral with a coating that covers or substantially covers at least one surface of the diaphragm.
H04R 7/20 - Dispositions pour monter ou pour tendre des membranes ou des cônes à la périphérie pour fixer une membrane ou un cône élastiquement à un support au moyen d'un matériau flexible, ressorts, fils ou cordes
F01N 1/06 - Silencieux caractérisés par leur principe de fonctionnement utilisant les effets d'interférence
A loudspeaker assembly comprising: a first loudspeaker configured to receive a first electrical signal, and to produce sound along a first principal radiating axis based on the first electrical signal; a second loudspeaker configured to receive a second electrical signal, and to produce sound along a second principal radiating axis based on the second electrical signal; a third loudspeaker configured to receive a third electrical signal, and to produce sound along a third principal radiating axis based on the third electrical signal; and a control unit configured to produce each of the first, second and third electrical signals based on an input signal representative of audio. There is a first angular offset between the first and second principal radiating axes and a second angular offset between the first and third principal radiating axes. The control unit is configured to filter at least two of the first, second and third electrical signals so that there is a first gain and phase difference between the first and second electrical signals and a second gain and phase difference between the first and third electrical signals. The first and second angular offsets and the first and second gain and phase differences are configured so that, when the loudspeaker assembly is in use, direct sound produced by multiple loudspeakers in the loudspeaker assembly is cancelled in accordance with a predetermined cancelling condition at each of a first listening position and a second listening position.
A loudspeaker including a chassis, a drive unit and a diaphragm. The drive unit has a stationary part secured to the chassis and a translatable part secured to the diaphragm. An outer edge of the diaphragm is suspended from the chassis by an edge suspension. The edge suspension has a plurality of straight portions, each straight portion having a respective first surface and a respective second surface which meet along an edge to provide a spring which permits the diaphragm to be moved relative to the chassis by the drive unit. The edge suspension has at least one corner portion, wherein the/each corner portion joins two of the straight portions together and includes at least one geometrical interruption formed therein. The/each geometrical interruption formed in the/each corner portion includes a first corrugation which varies in height along a first path which extends circumferentially around the edge suspension, and a second corrugation formed within the first corrugation which varies in height along a second path which extends across the first path. The/each corner portion may provide a continuous seal between the diaphragm and the chassis.
H04R 7/20 - Dispositions pour monter ou pour tendre des membranes ou des cônes à la périphérie pour fixer une membrane ou un cône élastiquement à un support au moyen d'un matériau flexible, ressorts, fils ou cordes
Speakers for locating in a vehicle exhaust system having a speaker surround that is formed from a rubber compounded using a polyacrylate polymer. Speakers having a speaker surround that is integral with a coating that covers or substantially covers at least one surface of the diaphragm.
H04R 7/20 - Dispositions pour monter ou pour tendre des membranes ou des cônes à la périphérie pour fixer une membrane ou un cône élastiquement à un support au moyen d'un matériau flexible, ressorts, fils ou cordes
A speaker unit (100) for producing high directivity sound at a broad range of frequencies, including at low frequencies, the speaker unit (100) including; a speaker (102), a phase plug and an acoustic tube (104) having an open first end, the first end being acoustically coupled to the phase plug, the tube (104) having a series of apertures (106, 110, 112), and the centres of the apertures (106, 110, 112) lying on a generally a straight line along the length of the tube (104), wherein the size of the apertures (106, 110, 112) increases with distance from the speaker (102).
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
The present invention relates to a loudspeaker 1 including a cone 20 having a central aperture with a cone collar 28 upstanding from the perimeter of the central aperture 26 of the cone, a spider 30 having a central aperture 36, the spider having a collar 38 upstanding from the perimeter of the central aperture of the spider, and a voice coil former 40. The collar of each of the cone and the spider are concentrically located around an end region of the voice coil former to form an elongate neck region 12. The use of the elongate neck region allows for the cone, spider and voice coil former to be joined more easily therefore forming a more reliable and durable join.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Loudspeakers, apparatus for recording, transmission or reproduction of sound, sound bars; amplifiers, audio receivers, audio disc players, audio disc recorders, CD players, CD recorders, radio receivers, radio transmitters, headphones, earphones, dock speaker for portable digital music devices, loudspeakers for vehicle, amplifiers for vehicles, audio disc players for vehicle, radio receivers for vehicles, accessories for all of the aforementioned audio apparatus namely, cables, straps, cover and carrying cases.
The present invention relates to a loudspeaker (1). The loudspeaker (1) includes: a U-yoke for holding a magnet having a base (12) with an upstanding side (14) around the perimeter of the base (12); a frame (20) having a ring (22) around the U-yoke, the ring having a U-shaped cross-section orientated with a base (24) of the U abutting the side (12) of the U-yoke; a dome shaped diaphragm (40) connected to the frame (20) by a resilient member (30) around the dome (40), the resilient member (30) and the dome (40) being suspended from the frame (20); a first cavity (70) defined by the dome (40), resilient member (30), frame (20) and U-yoke; an external wall (80) around the circumference of the frame (20), the external wall (80) sealing a top of the U-shaped cross-section of the ring (22) forming a second cavity (100) between the external wall (80) and the ring (22); a port (110) in the frame (20) between the first cavity (70) and second cavity (100), wherein the first cavity (70) and second cavity (100) and the port (110) form a Helmholtz resonator system. The shape of the frame (20) in combination with the external wall (80) allows a Helmholtz resonator system to be established within the existing footprint of the loudspeaker.
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 31/00 - Appareils ou procédés spécialement adaptés à la fabrication des transducteurs ou de leurs diaphragmes
H04R 3/08 - Circuits pour transducteurs pour corriger la fréquence de réponse des transducteurs électromagnétiques
09 - Appareils et instruments scientifiques et électriques
Produits et services
Loudspeakers; apparatus for recording, transmission or reproduction of sound or images; sound bars; amplifiers, audio receivers, audio disc players, audio disc recorders, video disc players, video disc recorders, high density disc players, high density disc recorders; integrated circuit memory players, integrated circuit memory recorders; solid state and flash memory players and recorders; CD players, CD recorders, DVD players, DVD recorders, players for optical and magneto-optical discs, recorders for optical and magneto-optical discs; television receivers, radio receivers, radio transmitters; headphones, earphones; dock speaker for portable digital music devices; loudspeakers for vehicle, amplifiers for vehicle, audio disc players for vehicle, video disc players for vehicle television receivers for vehicle, radio receivers for vehicle; accessories for all of the aforementioned audio apparatus and video apparatus, namely, cables, straps, cover and carrying cases.
