Abrégé

A nonlinear control system and a loudspeaker protection system. In particular, a nonlinear control system including a controller, an audio system, and a model is disclosed. The controller is configured to accept one or more input signals, and one or more estimated states produced by the model to produce one or more control signals. The audio system includes one or more transducers configured to accept the control signals to produce a rendered audio stream therefrom. An active loudspeaker with an integrated amplifier is disclosed. A loudspeaker protection system and a quality control system are disclosed. More particularly, a system for clamping the input to a loudspeaker dependent upon a bank of representative models is disclosed.

Classes IPC  ?

• H04R 3/00 - Circuits pour transducteurs

Abrégé

A nonlinear control system is disclosed. More particularly, a nonlinear control system including a controller, an audio system, and a model is disclosed. The controller is configured to accept one or more input signals, and one or more estimated states produced by the model to produce one or more control signals. The audio system includes one or more transducers configured to accept the control signals to produce a rendered audio stream there from.

Classes IPC  ?

• H04R 3/00 - Circuits pour transducteurs
• H04R 29/00 - Dispositifs de contrôleDispositifs de tests

Abrégé

A system and/or media network for rendering a media stream from one or more media rendering devices is disclosed. The media network may include one or more configurable peers, each configurable peer configurable as a rendering device, an observer, a processing device, a combination thereof, or the like. The system may be particularly suitable for use in remote locations, to generate a controlled and/or shared meeting topology within an uncontrolled media environment, and/or to generate an intense sound field amongst a group of participants from a collection of associated peers.

Classes IPC  ?

• H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
• H04L 29/08 - Procédure de commande de la transmission, p.ex. procédure de commande du niveau de la liaison
• H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
• H04N 21/63 - Signalisation de contrôle entre des éléments du client, serveur et réseauProcédés liés au réseau pour la distribution de vidéo entre serveur et clients, p. ex. transmission de la couche de base et des couches d’amélioration sur des voies de transmission différentes, mise en œuvre d’une communication pair à pair via Internet entre des boîtiers décodeurs STBProtocoles de communicationAdressage

Abrégé

A signal conversion system and method for converting an input signal to a pulse width modulated signal is disclosed. The signal conversion system includes a sample rate converter coupled with an associated pulse width modulation (PWM) module. A hardware and power efficient signal conversion system for resampling an audio input signal with an arbitrary sample rate to a pulse width modulated output audio signal for use in an audio processor and/or reproduction is disclosed. The signal conversion system may be particularly suitable for use in a battery operated consumer electronics device.

Classes IPC  ?

• H04L 25/49 - Circuits d'émissionCircuits de réception à conversion de code au transmetteurCircuits d'émissionCircuits de réception à pré-distorsionCircuits d'émissionCircuits de réception à insertion d'intervalles morts pour obtenir un spectre de fréquence désiréCircuits d'émissionCircuits de réception à au moins trois niveaux d'amplitude
• H03G 9/00 - Combinaisons de plusieurs types de commande, p. ex. commande de gain et commande de tonalité
• G11B 20/10 - Enregistrement ou reproduction numériques
• H03M 5/08 - Représentation du code par la largeur de l'impulsion

Abrégé

Systems and methods for enhancing the audio experience on a consumer electronic device are disclosed. More particularly systems and methods for optimizing the audio performance of individual consumer electronic devices as part of a manufacturing process and/or retail experience are disclosed. A system for enhancing the audio performance of a consumer electronic device including a parametrically configurable processing block is disclosed.

Classes IPC  ?

• G01R 31/01 - Passage successif d'articles similaires aux tests, p. ex. tests "tout ou rien" d'une production de sérieTest d'objets en certains points lorsqu'ils passent à travers un poste de test

Abrégé

An integrated loudspeaker assembly along with associated methods and systems for enhancing audio output from a consumer electronic device including such an integrated loudspeaker assembly are disclosed. More particularly an integrated loudspeaker assembly configured to utilize the enclosure of an associated consumer electronic device for back volume is disclosed. Methods and systems for optimizing the audio performance of a consumer electronic device with an integrated loudspeaker assembly are also disclosed.

Classes IPC  ?

• H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
• H04B 1/38 - Émetteurs-récepteurs, c.-à-d. dispositifs dans lesquels l'émetteur et le récepteur forment un ensemble structural et dans lesquels au moins une partie est utilisée pour des fonctions d'émission et de réception

Abrégé

A multi-rate filter system is disclosed. More particularly, a computationally efficient multi-rate filter system for processing an audio stream on a consumer electronics device is disclosed. The multi-rate filter system includes a plurality of multi-rate filtering blocks, at least one block including a linear filter component. At least one multi-rate filtering block may include a nonlinear signal processing components. The multi-rate filter system may include a nonlinear functional block. A method of filtering a signal is also disclosed.

Classes IPC  ?

• H03H 17/00 - Réseaux utilisant des techniques numériques

Abrégé

A system and method for enhancing the real and/or perceived bass band of an audio signal is disclosed. A computationally simple yet effective bass band enhancement system for use in consumer electronics applications is disclosed. An audio processing system including bass enhancement functionality for use in a mobile audio system is disclosed.

Classes IPC  ?

• H04R 3/04 - Circuits pour transducteurs pour corriger la fréquence de réponse

Abrégé

An asynchronous sample rate converter and method for converting an input signal to a resampled output signal is disclosed. An efficient and cost-effective sample rate converter for converting an input signal of arbitrary sample rate to a resampled output signal of a second sample rate is disclosed. A hardware-efficient sample-rate converter for resampling an audio input signal with an arbitrary sample rate to an output audio signal with a known sample rate for use in an audio processor is disclosed.

Classes IPC  ?

• H03H 17/06 - Filtres non récursifs

Abrégé

A system and method for enhancing the audio experience on a consumer electronic device is disclosed. A system for enhancing the audio experience on a consumer electronic device including a parametrically configurable processing block is disclosed. An all-digital audio enhancement system suitable for embedding into a low cost, low power application specific integrated circuit is disclosed. A method for configuring an audio enhancement system on a consumer electronic device is also disclosed.

Classes IPC  ?

• H03G 9/00 - Combinaisons de plusieurs types de commande, p. ex. commande de gain et commande de tonalité

Abrégé

A speaker system (1, 1', 1'') comprises a first speaker driver group (G1), comprising at least one first speaker driver (S1) and a first amplifier (A1), and a second speaker driver group (G2), comprising at least one second speaker driver (S2) and a second amplifier (A2). The speaker system further comprises a digital signal processor (2), adapted to provide a first signal to the first speaker driver group (G1) and a second signal to the second signal group (G2), wherein the first and second signals differ with respect to frequency range and at least one of the speaker driver groups comprises at least 4, 6, 8 or 10 speaker drivers.

Classes IPC  ?

• H04R 1/24 - Combinaisons structurelles de transducteurs séparés ou de parties du même transducteur et sensibles respectivement à plusieurs bandes de fréquences
• H04R 1/26 - Dispositions dans l'espace de transducteurs séparés sensibles à plusieurs bandes de fréquences

Abrégé

The invention provides a Hi-fi sound system for the digital transfer of sound information from a digital signal source (2) to one or several loudspeaker enclosures with integrated amplifiers is described. The system includes a control unit (4) that superimposes a digital signal corresponding to the sound information for all the loudspeakers onto a DC supply current for the amplifier units (9) of the loudspeakers (7). The loudspeakers may be connected in a chain, one after another, or by branching, and the cables (10) may contain as little as two leads and the connection to the control unit (4) and the loudspeakers (amplifier units 9) may be of a simple snap-on or screw type.

Classes IPC  ?

• H04L 12/56 - Systèmes de commutation par paquets
• H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]