A wearable sound device and a manufacture method thereof are disclosed to improve user experience. The wearable sound device includes a venting device, configured to form a vent to connect a first volume within the wearable sound device and ambient, and a sound producing device, adjacent to the venting device, configured to produce sound toward the first volume.
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
H04R 31/00 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
An electronic device includes an operational component, a heat conductive component and an airflow generating package. The operational component produces a heat while operating. The heat conductive component is configured to conduct the heat generated by the operational component, wherein the operational component is disposed on the heat conductive component. The airflow generating package is disposed by an edge of the electronic device. The airflow generating package includes a film structure, the film structure includes a flap pair, and the flap pair includes a first flap and a second flap. The flap pair operates at an ultrasonic rate to produce an airflow. The heat conductive component extends toward the airflow generating package, such that the airflow generated by the airflow generating package flows through the heat conductive component, so as to dissipate the heat generated from the operational component through the heat conductive component.
H10N 39/00 - Integrated devices, or assemblies of multiple devices, comprising at least one piezoelectric, electrostrictive or magnetostrictive element covered by groups
3.
AIR QUALITY SENSING MODULE IN HANDHELD DEVICE AND AIR PUMP
An air quality sensing module includes a chamber, an air quality sensor and an air pump. The air quality sensing module is disposed or to be disposed within a handheld device. The air pump produces an airflow toward or away from the chamber, for the air quality sensor to perform an air quality sensing operation. A direction of the airflow produced by the air pump within the handheld device is reversible.
An airflow generating package includes a base, a covering structure and a film structure. The film structure is disposed between the base and the covering structure, and includes a flap pair including a first flap and a second flap. The flap pair operates at an ultrasonic rate so that the airflow generating package produces an airflow. A first air opening is formed on the covering structure.
B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
H01L 23/467 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids by flowing gases, e.g. air
5.
MANUFACTURING METHOD OF AIR-PULSE GENERATING DEVICE
A manufacturing method of an air-pulse generating device is provided. The manufacturing method includes: providing a wafer including a first layer and a second layer; patterning the first layer of the wafer to form a slit with a zigzagging pattern; and removing a first part of the second layer. A portion of the first layer above the removed first part of the second layer forms a film structure. The slit with the zigzagging pattern separates the film structure into a first flap and a second flap. The slit with the zigzagging pattern zigzags in a back-and-forth manner among a first direction and extends toward a second direction. The air-pulse generating device produces a plurality of air pulses by actuating the film structure.
An air-pulse generating device includes first and second cells. The first cell includes first flap and second flaps configured to perform a first differential movement to form a first opening. The second cell includes third and fourth flaps configured to perform a second differential movement to form a second opening. The first flap and the second flap are opposite to each other and actuated to move toward opposite directions to perform the first differential movement. The third flap and the fourth flap are opposite to each other and actuated to move toward opposite directions to perform the second differential movement. The second flap of the first cell and the third flap of the second cell are actuated to move toward opposite directions and disposed adjacent to each other.
The air-pulse generating device comprises a film structure, operating at an ultrasonic operating frequency, and a resonant chamber, formed on a side of the film structure. A resonance is formed within the resonance chamber. Due to the resonant chamber, the APG device has a peak on a frequency response of an acoustic property of the APG device at the ultrasonic operating frequency.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
8.
Circuit and method of adjusting conduction period for energy-recycling circuit
A period determination circuit for determining conduction period for energy-recycling circuit includes an indication circuit, coupled to an inductor of the energy-recycling circuit to receive an inductor voltage, configured to generate an indication signal according to the inductor voltage, wherein the indication signal reflects a status corresponding to a first conduction period of the energy-recycling circuit; and a control signal generator, coupled to a switch of the energy-recycling circuit, configured to generate a control signal with a second conduction period for the switch according to the indication signal. The energy-recycling circuit is coupled to a first capacitive component and a second capacitive component. The energy-recycling circuit comprises the inductor and the switch coupled between the first capacitive component and the second capacitive component. The control signal generator determines the second conduction period according to the first conduction period and the indication signal.
The cooling system comprises a channel encompassing a heat source; a coolant-droplets introducer configured to introduce coolant droplets into the channel, wherein the coolant droplets vaporize as coolant gas in the channel due to heat generated by the heat source; a compressor configured to pump an air from a channel subspace into a condenser subspace, wherein the air comprises the coolant gas; and a condenser configured to condense the coolant gas into coolant droplets or coolant liquid. The coolant liquid is introduced to or for the coolant-droplets introducer.
An air-pulse generating device includes a film structure including a first flap and a second flap opposite to each other. The film structure is actuated to operate at an ultrasonic frequency, and the air-pulse generating device produces a plurality of air pulses at an ultrasonic pulse rate. The first flap and the second flap are actuated to perform a differential movement to form an opening or a virtual valve. A slit is formed between the first flap and the second flap, and the opening or the virtual valve is formed because of the slit. The slit is formed as a zigzagging pattern on the film structure.
A controller for controlling a sound producing device includes a vent controller and an audio amplifier. The vent controller is configured to output a first driving voltage and a second driving voltage to the sound producing device, to control the sound producing device to form a vent. The audio amplifier is configured to output a first audio signal to the sound producing device, to produce a sound. The sound producing device comprises a flap pair, and the flap pair comprises a first flap and a second flap. The vent controller outputs the first driving voltage and actuates the first flap to generate a first displacement, the vent controller outputs the second driving voltage and actuates the second flap to generate a second displacement, and the vent is formed because of a difference between the first displacement and the second displacement.
09 - Scientific and electric apparatus and instruments
28 - Games; toys; sports equipment
Goods & Services
Audio amplifiers; Audio and visual headsets for use in playing video games; Audio circuit boards; Audio electronic components, such as, surround sound systems; Audio equipment for vehicles, such as, loudspeakers for automotive audio systems; Audio equipment for vehicles, such as, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio headphones; Audio receivers; Audio speakers; Audio speakers for automobiles; Semiconductor chip sets; Semiconductor chip sets for use in piezo MEMS speakers and valves; Semiconductor chips; Semiconductor devices; Semiconductors; Speaker microphones; Valve amplifiers; Automated valves for smartphones; Consumer audio devices, such as, headphones, wired and wireless earbuds, and hearing aid devices; Automatic control valves; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Electric audio playback units; Electric valve actuators; Electric audio playback units with lights and speakers; Electronic semiconductors; Electronic valves for controlling gas or fluids; Electronic components in the nature of piezo MEMS speakers and valves; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, such as, audio processors; Pressure relief valves for consumer audio devices, such as, headphones, earbuds, and hearing aid devices; Signal processors for audio speakers; Electronic components in the nature of piezo MEMS for fluidic pump; Consumer audio devices, namely, headphones, earbuds, and hearing aid devices; Semiconductor chip sets for use in piezo MEMS fluidic pump; Air quality sensor; Air pump for air quality sensor; Microelectromechanical (MEMS) devices in the nature of piezoelectric transducers for applications in electronic or computer heat dissipation and micro-fluidic pumping; Smartphones; Tablets; Virtual reality goggles; Virtual reality glasses; Virtual reality Headsets; Augmented reality goggles; Augmented reality glasses; Augmented reality Headsets; Laptop computers; Solid state drives; Wireless chargers; 2D packaging; 2.5D packaging; 3D packaging; Chip Scale Package; Flat panel displays; Flat panel televisions; Projectors; Monitors; Desktop computers; Computer servers; Video recording devices; Consumer electronics namely, smartphones, TVs, monitors, projectors; Augmented virtuality devices; Augmented reality devices; Virtual reality devices; Audiovisual devices, such as, camcorders, video recording and broadcasting devices; Computing devices including computers, such as, desktops, laptops, notebooks, tablets, computer servers; Audio speakers, such as standalone speakers, speaker in desktop, wireless earbuds, TWS (true wireless stereo) earbuds, OWS (open wearable stereo) wireless earbuds, headphones, hearing aids. Consumer electronics namely, game consoles.
09 - Scientific and electric apparatus and instruments
Goods & Services
Audio amplifiers; Audio and visual headsets for use in playing video games; Audio circuit boards; Audio electronic components, namely, surround sound systems; Audio equipment for vehicles, namely, loud speakers for automotive audio systems; Audio equipment for vehicles, namely, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio headphones; Audio receivers; Audio speakers; Audio speakers for automobiles; Semiconductor chip sets; Semiconductor chip sets for use in piezo MEMS speakers and valves; Semiconductor chips; Semiconductor devices; Semiconductors; Speaker microphones; Valve amplifiers; Automated valves for smartphones, consumer audio devices, namely, headphones, earbuds, and hearing aid devices; Automatic control valves; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Electric audio playback units; Electric valve actuators; Electric audio playback units with lights and speakers; Electronic semiconductors; Electronic valves for controlling gas or fluids; Electronic components in the nature of piezo MEMS speakers and valves; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, namely, audio processors; Pressure relief valves for consumer audio devices, namely, headphones, earbuds, and hearing aid devices; Signal processors for audio speakers.
09 - Scientific and electric apparatus and instruments
Goods & Services
Audio amplifiers; Audio and visual headsets for use in playing video games; Audio circuit boards; Audio electronic components, namely, surround sound systems; Audio equipment for vehicles, namely, loud speakers for automotive audio systems; Audio equipment for vehicles, namely, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio headphones; Audio receivers; Audio speakers; Audio speakers for automobiles; Semiconductor chip sets; Semiconductor chip sets for use in piezo MEMS speakers and valves; Semiconductor chips; Semiconductor devices; Semiconductors; Speaker microphones; Valve amplifiers; Automated valves for smartphones, consumer audio devices, namely, headphones, earbuds, and hearing aid devices; Automatic control valves; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Electric audio playback units; Electric valve actuators; Electric audio playback units with lights and speakers; Electronic semi-conductors; Electronic valves for controlling gas or fluids; Electronic components in the nature of piezo MEMS speakers and valves; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, namely, audio processors; Pressure relief valves for consumer audio devices, namely, headphones, earbuds, and hearing aid devices; Signal processors for audio speakers.
09 - Scientific and electric apparatus and instruments
28 - Games; toys; sports equipment
Goods & Services
Audio amplifiers; Audio and visual headsets for use in playing video games; Audio circuit boards; Audio electronic components, such as, surround sound systems; Audio equipment for vehicles, such as, loudspeakers for automotive audio systems; Audio equipment for vehicles, such as, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio headphones; Audio receivers; Audio speakers; Audio speakers for automobiles; Semiconductor chip sets; Semiconductor chip sets for use in piezo MEMS speakers and valves; Semiconductor chips; Semiconductor devices; Semiconductors; Speaker microphones; Valve amplifiers; Automated valves for smartphones; Consumer audio devices, such as, headphones, wired and wireless earbuds, and hearing aid devices; Automatic control valves; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Electric audio playback units; Electric valve actuators; Electric audio playback units with lights and speakers; Electronic semiconductors; Electronic valves for controlling gas or fluids; Electronic components in the nature of piezo MEMS speakers and valves; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, such as, audio processors; Pressure relief valves for consumer audio devices, such as, headphones, earbuds, and hearing aid devices; Signal processors for audio speakers; Consumer electronics namely, smartphones, TVs, monitors, projectors; Augmented virtuality devices; Augmented reality devices; Virtual reality devices; Audiovisual devices, such as, camcorders, video recording and broadcasting devices; Computing devices including computers, such as, desktops, laptops, notebooks, tablets, computer servers; Audio speakers, such as standalone speakers, speaker in desktop, wireless earbuds, TWS (true wireless stereo) earbuds, OWS (open wearable stereo) wireless earbuds, headphones, hearing aids. Consumer electronics namely, game consoles.
09 - Scientific and electric apparatus and instruments
28 - Games; toys; sports equipment
Goods & Services
Audio amplifiers; Audio and visual headsets for use in playing video games; Audio circuit boards; Audio electronic components, such as, surround sound systems; Audio equipment for vehicles, such as, loudspeakers for automotive audio systems; Audio equipment for vehicles, such as, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio headphones; Audio receivers; Audio speakers; Audio speakers for automobiles; Semiconductor chip sets; Semiconductor chip sets for use in piezo MEMS speakers and valves; Semiconductor chips; Semiconductor devices; Semiconductors; Speaker microphones; Valve amplifiers; Automated valves for smartphones; Consumer audio devices, such as, headphones, wired and wireless earbuds, and hearing aid devices; Automatic control valves; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Electric audio playback units; Electric valve actuators; Electric audio playback units with lights and speakers; Electronic semiconductors; Electronic valves for controlling gas or fluids; Electronic components in the nature of piezo MEMS speakers and valves; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, such as, audio processors; Pressure relief valves for consumer audio devices, such as, headphones, earbuds, and hearing aid devices; Signal processors for audio speakers; Electronic components in the nature of piezo MEMS for fluidic pump; Consumer audio devices, namely, headphones, earbuds, and hearing aid devices; Semiconductor chip sets for use in piezo MEMS fluidic pump; Air quality sensor; Air pump for air quality sensor; Microelectromechanical (MEMS) devices in the nature of piezoelectric transducers for applications in electronic or computer heat dissipation and micro-fluidic pumping; Smartphones; Tablets; Virtual reality goggles; Virtual reality glasses; Virtual reality Headsets; Augmented reality goggles; Augmented reality glasses; Augmented reality Headsets; Laptop computers; Solid state drives; Wireless chargers; 2D packaging; 2.5D packaging; 3D packaging; Chip Scale Package; Flat panel displays; Flat panel televisions; Projectors; Monitors; Desktop computers; Computer servers; Video recording devices; Consumer electronics namely, smartphones, TVs, monitors, projectors; Augmented virtuality devices; Augmented reality devices; Virtual reality devices; Audiovisual devices, such as, camcorders, video recording and broadcasting devices; Computing devices including computers, such as, desktops, laptops, notebooks, tablets, computer servers; Audio speakers, such as standalone speakers, speaker in desktop, wireless earbuds, TWS (true wireless stereo) earbuds, OWS (open wearable stereo) wireless earbuds, headphones, hearing aids. Consumer electronics namely, game consoles.
09 - Scientific and electric apparatus and instruments
Goods & Services
Audio amplifiers; Audio and visual headsets for use in playing video games; Audio circuit boards; Audio electronic components, namely, surround sound systems; Audio equipment for vehicles, namely, loud speakers for automotive audio systems; Audio equipment for vehicles, namely, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio headphones; Audio receivers; Audio speakers; Audio speakers for automobiles; Semiconductor chip sets; Semiconductor chip sets for use in piezo MEMS speakers and valves; Semiconductor chips; Semiconductor devices; Semiconductors; Speaker microphones; Valve amplifiers; Automated valves for smartphones, consumer audio devices, namely, headphones, earbuds, and hearing aid devices; Automatic control valves; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Electric audio playback units; Electric valve actuators; Electric audio playback units with lights and speakers; Electronic semi-conductors; Electronic valves for controlling gas or fluids; Electronic components in the nature of piezo MEMS speakers and valves; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, namely, audio processors; Pressure relief valves for consumer audio devices, namely, headphones, earbuds, and hearing aid devices; Signal processors for audio speakers.
09 - Scientific and electric apparatus and instruments
Goods & Services
Audio amplifiers; Audio and visual headsets for use in playing video games; Audio circuit boards; Audio electronic components, namely, surround sound systems; Audio equipment for vehicles, namely, loud speakers for automotive audio systems; Audio equipment for vehicles, namely, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio headphones; Audio receivers; Audio speakers; Audio speakers for automobiles; Semiconductor chip sets; Semiconductor chip sets for use in piezo MEMS speakers and valves; Semiconductor chips; Semiconductor devices; Semiconductors; Speaker microphones; Valve amplifiers; Automated valves for smartphones, consumer audio devices, namely, headphones, earbuds, and hearing aid devices; Automatic control valves; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Electric audio playback units; Electric valve actuators; Electric audio playback units with lights and speakers; Electronic semi-conductors; Electronic valves for controlling gas or fluids; Electronic components in the nature of piezo MEMS speakers and valves; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, namely, audio processors; Pressure relief valves for consumer audio devices, namely, headphones, earbuds, and hearing aid devices; Signal processors for audio speakers.
09 - Scientific and electric apparatus and instruments
Goods & Services
Valves for controlling and regulating the flow of gases or liquids not being parts of plumbing, heating, cooling installations or machines; Automatic control valves; Automatic valves for consumer audio earbuds, headphones and medical or consumer hearing aid devices; Control valves for regulating the flow of gases and liquids; Electric valve actuators; Electronic valves for controlling gas or fluids; Pressure relief valves for consumer audio earbuds, headphones and medical or consumer hearing aid devices.
09 - Scientific and electric apparatus and instruments
28 - Games; toys; sports equipment
Goods & Services
Audio amplifiers; Audio and visual headsets for use in playing video games; Audio circuit boards; Audio electronic components, such as, surround sound systems; Audio equipment for vehicles, such as, loudspeakers for automotive audio systems; Audio equipment for vehicles, such as, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio headphones; Audio receivers; Audio speakers; Audio speakers for automobiles; Semiconductor chip sets; Semiconductor chip sets for use in piezo MEMS speakers and valves; Semiconductor chips; Semiconductor devices; Semiconductors; Speaker microphones; Valve amplifiers; Automated valves for smartphones; Consumer audio devices, such as, headphones, wired and wireless earbuds, and hearing aid devices; Automatic control valves; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Electric audio playback units; Electric valve actuators; Electric audio playback units with lights and speakers; Electronic semiconductors; Electronic valves for controlling gas or fluids; Electronic components in the nature of piezo MEMS speakers and valves; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, such as, audio processors; Pressure relief valves for consumer audio devices, such as, headphones, earbuds, and hearing aid devices; Signal processors for audio speakers; Consumer electronics namely, smartphones, TVs, monitors, projectors; Augmented virtuality devices; Augmented reality devices; Virtual reality devices; Audiovisual devices, such as, camcorders, video recording and broadcasting devices; Computing devices including computers, such as, desktops, laptops, notebooks, tablets, computer servers; Audio speakers, such as standalone speakers, speaker in desktop, wireless earbuds, TWS (true wireless stereo) earbuds, OWS (open wearable stereo) wireless earbuds, headphones, hearing aids. Consumer electronics namely, game consoles.
09 - Scientific and electric apparatus and instruments
28 - Games; toys; sports equipment
Goods & Services
Audio amplifiers; Audio and visual headsets for use in playing video games; Audio circuit boards; Audio electronic components, such as, surround sound systems; Audio equipment for vehicles, such as, loudspeakers for automotive audio systems; Audio equipment for vehicles, such as, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio headphones; Audio receivers; Audio speakers; Audio speakers for automobiles; Semiconductor chip sets; Semiconductor chip sets for use in piezo MEMS speakers and valves; Semiconductor chips; Semiconductor devices; Semiconductors; Speaker microphones; Valve amplifiers; Automated valves for smartphones; Consumer audio devices, such as, headphones, wired and wireless earbuds, and hearing aid devices; Automatic control valves; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Electric audio playback units; Electric valve actuators; Electric audio playback units with lights and speakers; Electronic semiconductors; Electronic valves for controlling gas or fluids; Electronic components in the nature of piezo MEMS speakers and valves; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, such as, audio processors; Pressure relief valves for consumer audio devices, such as, headphones, earbuds, and hearing aid devices; Signal processors for audio speakers; Consumer electronics namely, smartphones, TVs, monitors, projectors; Augmented virtuality devices; Augmented reality devices; Virtual reality devices; Audiovisual devices, such as, camcorders, video recording and broadcasting devices; Computing devices including computers, such as, desktops, laptops, notebooks, tablets, computer servers; Audio speakers, such as standalone speakers, speaker in desktop, wireless earbuds, TWS (true wireless stereo) earbuds, OWS (open wearable stereo) wireless earbuds, headphones, hearing aids. Consumer electronics namely, game consoles.
A sound producing package includes a substrate, a covering structure and a sound producing component. The covering structure is disposed on the substrate, wherein the covering structure has a plurality of first openings. The sound producing component is disposed between the substrate and the covering structure, wherein the sound producing component includes a membrane and an actuator, and the sound producing component is configured to generate an acoustic wave.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
A driving circuit comprises a first capacitor. During a sampling operation, the first capacitor is coupled between a first and a second input terminals. During a transferring operation, an end of the first capacitor receives a voltage and another end of the first capacitor is coupled to a load. The driving circuit produces a first driving signal to drive the load, the first driving signal comprises a plurality of first portions with a first polarity and a plurality of second portions with a second polarity opposite to the first polarity. The plurality of first portions and the plurality of second portions form a generalized DSB-SC modulated component of the first driving signal, which is modulated according to an input signal between the first input terminal and the second input terminal.
The sound suppression apparatus comprises a sound sensing device, configured to sense a sound; and a sound producing device comprising an air-pulse generating device, configured to generate a plurality of air pulses at an ultrasonic pulse rate. The plurality of air pulses at the ultrasonic pulse rate forms an anti-sound. The anti-sound comprises a component which is configured to suppress the sound.
B06B 1/02 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy
G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
An acoustic package structure includes a substrate, a covering structure and an acoustic chip. The covering structure is disposed on the substrate and has a plurality of first openings. The acoustic chip is disposed between the substrate and the covering structure, wherein the acoustic chip includes a membrane.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
09 - Scientific and electric apparatus and instruments
Goods & Services
Audio amplifiers; Audio and visual headsets for use in playing video games; Audio circuit boards; Audio electronic components, namely, surround sound systems; Audio equipment for vehicles, namely, loudspeakers for automotive audio systems; Audio equipment for vehicles, namely, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio headphones; Audio receivers; Audio speakers; Audio speakers for automobiles; Semiconductors; Semiconductor chip sets; Semiconductor chip sets for use in piezo MEMS speakers and valves; Semiconductor chips; Semiconductor devices; Speaker microphones; Valve amplifiers; Automated valves for smartphones; Consumer audio devices, namely, headphones, wired and wireless earbuds, and hearing aid devices; Automatic valves; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Electric audio playback units; Electric valve actuators; Electric audio playback units with lights and speakers; Electronic semiconductors; Electronic valves for controlling gas or fluids; Electronic components in the nature of piezo MEMS speakers and valves; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, namely, audio processors; Pressure relief valves for consumer audio devices, namely headphones, earbuds, and hearing aid devices.; Signal processors for audio speakers; Consumer electronics namely smartphones, TVs, video monitors, video projectors, video game consoles; Augmented virtual devices namely, Augmented reality glasses, Augmented reality headsets, Smart glasses featuring augmented reality displays, Head-mounted displays (HMD) for augmented reality, Handheld augmented reality devices;Virtual reality devices namely, Virtual reality glasses, Virtual reality headsets, Head-mounted displays (HMD) for virtual reality, Goggles for virtual reality, Standalone virtual reality headsets, Tethered virtual reality headsets, Wireless virtual reality headsets; Audiovisual devices, namely, camcorders, video recording and broadcasting devices namely, apparatus for broadcasting of sound or images; Computing devices including computers, namely, desktops, laptops, notebooks, tablets, computer servers; Audio speakers, namely standalone speakers, speaker as a part of desktop computers, wireless earbuds, TWS (true wireless stereo) earbuds, OWS (open wearable stereo) wireless earbuds, headphones, hearing aids
09 - Scientific and electric apparatus and instruments
Goods & Services
Audio amplifiers; Audio and visual headsets for use in playing video games; Audio circuit boards; Audio electronic components, namely, surround sound systems; Audio equipment for vehicles, namely, loudspeakers for automotive audio systems; Audio equipment for vehicles, namely, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio headphones; Audio receivers; Audio speakers; Audio speakers for automobiles; Semiconductors; Semiconductor chip sets; Semiconductor chip sets for use in piezo MEMS speakers and valves; Semiconductor chips; Semiconductor devices; Speaker microphones; Valve amplifiers; Automated valves for smartphones; Consumer audio devices, namely, headphones, wired and wireless earbuds, and hearing aid devices; Automatic valves; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Electric audio playback units; Electric valve actuators; Electric audio playback units with lights and speakers; Electronic semiconductors; Electronic valves for controlling gas or fluids; Electronic components in the nature of piezo MEMS speakers and valves; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, namely, audio processors; Pressure relief valves for consumer audio devices,namely headphones, earbuds, and hearing aid devices.; Signal processors for audio speakers; Consumer electronics namely smartphones, TVs, video monitors, video projectors,video game consoles; Augmented virtual devices namely, Augmented reality glasses, Augmented reality headsets, Smart glasses featuring augmented reality displays, Head-mounted displays (HMD) for augmented reality, Handheld augmented reality devices; Virtual reality devices namely, Virtual reality glasses, Virtual reality headsets, Head-mounted displays (HMD) for virtual reality, Goggles for virtual reality, Standalone virtual reality headsets, Tethered virtual reality headsets, Wireless virtual reality headsets; Audiovisual devices, namely, camcorders, video recording and broadcasting devices namely, apparatus for broadcasting of sound or images; Computing devices including computers, namely, desktops, laptops, notebooks, tablets, computer servers; Audio speakers, namely standalone speakers, speaker as a part of desktop computers, wireless earbuds, TWS (true wireless stereo) earbuds, OWS (open wearable stereo) wireless earbuds, headphones, hearing aids
09 - Scientific and electric apparatus and instruments
Goods & Services
Audio amplifiers; Audio and visual headsets for use in playing video games; Audio circuit boards; Audio electronic components, namely, surround sound systems; Audio equipment for vehicles, namely, loudspeakers for automotive audio systems; Audio equipment for vehicles, namely, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio headphones; Audio receivers; Audio speakers; Audio speakers for automobiles; Semiconductors; Semiconductor chip sets; Semiconductor chip sets for use in piezo MEMS speakers and valves; Semiconductor chips; Semiconductor devices; Speaker microphones; Valve amplifiers; Automated valves for smartphones; Consumer audio devices, namely, headphones, wired and wireless earbuds, and hearing aid devices; Automatic valves; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Electric audio playback units; Electric valve actuators; Electric audio playback units with lights and speakers; Electronic semiconductors; Electronic valves for controlling gas or fluids; Electronic components in the nature of piezo MEMS speakers and valves; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, namely, audio processors; Pressure relief valves for consumer audio devices,namely headphones, earbuds, and hearing aid devices.; Signal processors for audio speakers; electronic components in the nature of piezo MEMS for fluidic pump; consumer audio devices, namely, headphones, earbuds, and hearing aid devices; semiconductor chip sets for use in piezo MEMS fluidic pump; air quality sensors; air pumps for air quality sensors; microelectromechanical (MEMS) devices in the nature of piezoelectric transducers for applications in electronic or computer heat dissipation and micro-fluidic pumping; smartphones; computer tablets; virtual reality goggles; virtual reality glasses; virtual reality headsets; augmented reality goggles; augmented reality glasses; augmented reality headsets; laptop computers; solid-state drives; wireless chargers; two dimensional (2D) packaged integrated circuits; two-and-a-half dimensional (2.5D) packaged integrated circuits; three dimensional (3D) packaged integrated circuits; chip scale packages namely, semiconductor chips; flat panel display screens; flat panel televisions; video projectors; video monitors; desktop computers; computer network servers; video recording devices namely, digital cameras, camcorders, action cameras, body-worn cameras, webcams, surveillance cameras, dashboard cameras, thermal imaging cameras, smartphone cameras; Consumer electronics namely smartphones, TVs, video monitors, video projectors, video game consoles; Augmented virtual devices namely, Augmented reality glasses, Augmented reality headsets, Smart glasses featuring augmented reality displays, Head-mounted displays (HMD) for augmented reality, Handheld augmented reality devices; Virtual reality devices namely, Virtual reality glasses, Virtual reality headsets, Head-mounted displays (HMD) for virtual reality, Goggles for virtual reality, Standalone virtual reality headsets, Tethered virtual reality headsets, Wireless virtual reality headsets; Audiovisual devices, namely, camcorders, video recording and broadcasting devices namely, apparatus for broadcasting of sound or images; Computing devices including computers, namely, desktops, laptops, notebooks, tablets, computer servers; Audio speakers, namely standalone speakers, speaker as a part of desktop computers, wireless earbuds, TWS (true wireless stereo) earbuds, OWS (open wearable stereo) wireless earbuds, headphones, hearing aids
29.
Venting device, manufacturing method of venting device, venting method and device
A venting device includes an anchor structure and a membrane. The membrane is anchored on the anchor structure and configured to form a first vent and a second vent. The membrane includes a first flap, a second flap and a third flap. The membrane partitions a space into a first volume and a second volume, and the first volume and the second volume are connected when the first vent and the second vent are formed. The first flap is actuated to move toward a first direction and the second flap is actuated to move toward a second direction opposite to the first direction, so as to form the first vent. The first flap is actuated to move toward the first direction and the third flap is actuated to move toward the second direction opposite to the first direction, so as to form the second vent.
09 - Scientific and electric apparatus and instruments
Goods & Services
Audio amplifiers; Audio and visual headsets for use in playing video games; Audio circuit boards; Audio electronic components, namely, surround sound systems; Audio equipment for vehicles, namely, loudspeakers for automotive audio systems; Audio equipment for vehicles, namely, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio headphones; Audio receivers; Audio speakers; Audio speakers for automobiles; Semiconductors; Semiconductor chip sets; Semiconductor chip sets for use in piezo MEMS speakers and valves; Semiconductor chips; Semiconductor devices; Speaker microphones; Valve amplifiers; Automated valves for smartphones; Consumer audio devices, namely, headphones, wired and wireless earbuds, and hearing aid devices; Automatic valves; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Electric audio playback units; Electric valve actuators; Electric audio playback units with lights and speakers; Electronic semiconductors; Electronic valves for controlling gas or fluids; Electronic components in the nature of piezo MEMS speakers and valves; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, namely, audio processors; Pressure relief valves for consumer audio devices, namely headphones, earbuds, and hearing aid devices.; Signal processors for audio speakers; electronic components in the nature of piezo MEMS for fluidic pump; consumer audio devices, namely, headphones, earbuds, and hearing aid devices; semiconductor chip sets for use in piezo MEMS fluidic pump; air quality sensors; air pumps for air quality sensors; microelectromechanical (MEMS) devices in the nature of piezoelectric transducers for applications in electronic or computer heat dissipation and micro-fluidic pumping; smartphones; computer tablets; virtual reality goggles; virtual reality glasses; virtual reality headsets; augmented reality goggles; augmented reality glasses; augmented reality headsets; laptop computers; solid-state drives; wireless chargers; two dimensional (2D) packaged integrated circuits; two-and-a-half dimensional (2.5D) packaged integrated circuits; three dimensional (3D) packaged integrated circuits; chip scale packages in the nature of semiconductor chips; flat panel display screens; flat panel televisions; video projectors; video monitors; desktop computers; computer network servers; video recording devices, namely, digital cameras, camcorders, action cameras, body-worn cameras, webcams, surveillance cameras, dashboard cameras, thermal imaging cameras, smartphone cameras ; Consumer electronics, namely, smartphones, TVs, video monitors, video projectors, video game consoles; Augmented devices, namely, Augmented reality glasses, Augmented reality headsets, Smart glasses featuring augmented reality displays, Head-mounted displays (HMD) for augmented reality, Handheld augmented reality devices; Virtual reality devices, namely, Virtual reality glasses, Virtual reality headsets, Head-mounted displays (HMD) for virtual reality, Goggles for virtual reality, Standalone virtual reality headsets, Tethered virtual reality headsets, Wireless virtual reality headsets; Audiovisual devices, namely, camcorders, video recording and broadcasting devices, namely, apparatus for broadcasting of sound or images; Computing devices including computers, namely, desktops, laptops, notebooks, tablets, computer servers; Audio speakers, namely standalone speakers, speaker for use with desktop computers; wireless earbuds, TWS (true wireless stereo) earbuds, OWS (open wearable stereo) wireless earbuds, headphones
09 - Scientific and electric apparatus and instruments
Goods & Services
Audio amplifiers; Audio and visual headsets for use in playing video games; Audio circuit boards; Audio electronic components, namely, surround sound systems; Audio equipment for vehicles, namely, loudspeakers for automotive audio systems; Audio equipment for vehicles, namely, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio headphones; Audio receivers; Audio speakers; Audio speakers for automobiles; Semiconductors; Semiconductor chip sets; Semiconductor chip sets for use in piezo MEMS speakers and valves; Semiconductor chips; Semiconductor devices; Speaker microphones; Valve amplifiers; Automated valves for smartphones; Consumer audio devices, namely, headphones, wired and wireless earbuds, and hearing aid devices; Automatic valves; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Electric audio playback units; Electric valve actuators; Electric audio playback units with lights and speakers; Electronic semiconductors; Electronic valves for controlling gas or fluids; Electronic components in the nature of piezo MEMS speakers and valves; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, namely, audio processors; Pressure relief valves for consumer audio devices, namely headphones, earbuds, and hearing aid devices.; Signal processors for audio speakers; Consumer electronics, namely, smartphones, TVs, video monitors, video projectors, video game consoles; Augmented devices, namely, Augmented reality glasses, Augmented reality headsets, Smart glasses featuring augmented reality displays, Head-mounted displays (HMD) for augmented reality, Handheld augmented reality devices; Virtual reality devices, namely, Virtual reality glasses, Virtual reality headsets, Head-mounted displays (HMD) for virtual reality, Goggles for virtual reality, Standalone virtual reality headsets, Tethered virtual reality headsets, Wireless virtual reality headsets; Audiovisual devices, namely, camcorders, video recording and broadcasting devices, namely, apparatus for broadcasting of sound or images; Computing devices including computers, namely, desktops, laptops, notebooks, tablets, computer servers; Audio speakers, namely, standalone speakers, audio speaker for use with desktop computers, wireless earbuds, TWS (true wireless stereo) earbuds, OWS (open wearable stereo) wireless earbuds, headphones
09 - Scientific and electric apparatus and instruments
Goods & Services
Audio amplifiers; Audio and visual headsets for use in playing video games; Audio circuit boards; Audio electronic components, namely, surround sound systems; Audio equipment for vehicles, namely, loudspeakers for automotive audio systems; Audio equipment for vehicles, namely, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio headphones; Audio receivers; Audio speakers; Audio speakers for automobiles; Semiconductors; Semiconductor chip sets; Semiconductor chip sets for use in piezo MEMS speakers and valves; Semiconductor chips; Semiconductor devices; Speaker microphones; Valve amplifiers; Automated valves for smartphones; Consumer audio devices, namely, headphones, wired and wireless earbuds, and hearing aid devices; Automatic valves; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Electric audio playback units; Electric valve actuators; Electric audio playback units with lights and speakers; Electronic semiconductors; Electronic valves for controlling gas or fluids; Electronic components in the nature of piezo MEMS speakers and valves; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, namely, audio processors; Pressure relief valves for consumer audio devices, namely headphones, earbuds, and hearing aid devices.; Signal processors for audio speakers; Consumer electronics, namely, smartphones, TVs, video monitors, video projectors, video game consoles; Augmented devices, namely, Augmented reality glasses, Augmented reality headsets, Smart glasses featuring augmented reality displays, Head-mounted displays (HMD) for augmented reality, Handheld augmented reality devices; Virtual reality devices, namely, Virtual reality glasses, Virtual reality headsets, Head-mounted displays (HMD) for virtual reality, Goggles for virtual reality, Standalone virtual reality headsets, Tethered virtual reality headsets, Wireless virtual reality headsets; Audiovisual devices, namely, camcorders, video recording and broadcasting devices, namely, apparatus for broadcasting of sound or images; Computing devices including computers, namely, desktops, laptops, notebooks, tablets, computer servers; Audio speakers, namely, standalone speakers, audio speaker for use with desktop computers, wireless earbuds, TWS (true wireless stereo) earbuds, OWS (open wearable stereo) wireless earbuds, headphones
An air-pulse generating device, a wearable sound device, bladeless fan, and an airflow producing method are disclosed. The air-pulse generating device includes a film structure, configured to be actuated to generate a plurality of air pulses at an ultrasonic pulse rate. The plurality of air pulses produces a net airflow toward one single direction.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
F04B 45/04 - Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
H04R 1/42 - Combinations of transducers with fluid-pressure or other non-electrical amplifying means
09 - Scientific and electric apparatus and instruments
Goods & Services
Audio amplifiers; Audio and visual headsets for use in playing video games; Audio circuit boards; Audio electronic components, namely, surround sound systems; Audio equipment for vehicles, namely, loud speakers for automotive audio systems; Audio equipment for vehicles, namely, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio headphones; Audio receivers; Audio speakers; Audio speakers for automobiles; Semiconductor chip sets; Semiconductor chip sets for use in piezo MEMS speakers and valves; Semiconductor chips; Semiconductor devices; Semiconductors; Speaker microphones; Valve amplifiers; Automated valves for smartphones, consumer audio devices, namely, headphones, earbuds, and hearing aid devices; Automatic valves; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Electric audio playback units; Electric valve actuators; Electric audio playback units with lights and speakers; Electronic semi-conductors; Electronic valves for controlling gas or fluids; Electronic components in the nature of piezo MEMS speakers and valves; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, namely, audio processors; Pressure relief valves for consumer audio devices, namely, headphones, earbuds, and hearing aid devices; Signal processors for audio speakers
35.
Cantilever structure with intermediate substrate connection having a film with on anchor with protrusion
A cantilever structure includes an anchor portion and a film structure. The film structure covers over a cavity and vibrates within the cavity. A length of the film structure is less than a width of the film structure. The anchor portion includes at least one protrusion protruding toward the cavity, and the film structure is anchored on the anchor portion with the at least one protrusion.
A wearable sound device includes a venting module, configured to form at least one vent to connect a volume within the wearable sound device and ambient, and a sound producing device, configured to produce sound according to an equalized input signal. The venting module, including at least one venting device, operates among a plurality of statuses corresponding to a plurality of degrees of opening. A controller generates the equalized input signal according to a degree of opening among the plurality of degrees of opening, in order to counteract a roll off caused by the at least one vent.
An acoustic device includes a first sound producing component and a back cavity structure. The first sound producing component has a first front side and a first back side, wherein the first sound producing component is a high frequency sound unit, and the first front side faces a sound propagating opening of the acoustic device. The back cavity structure is connected to the first back side of the first sound producing component. The first sound producing component produces a first acoustic wave from the first front side towards the sound propagating opening, and the first sound producing component produces a second acoustic wave from the first back side towards a back cavity of the back cavity structure. The back cavity structure is configured to flatten a peak or a dip of a frequency response of the first sound producing component.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
A demodulation signal generator, coupled to an air-pulse generator comprising a flap pair, includes a resonance circuit. The resonance circuit produces a first demodulation signal and a second demodulation signal. The resonance circuit and the flap pair co-perform a resonance operation, such that the first demodulation signal and the second demodulation signal are generated via the co-performed resonance operation and have opposite polarity. The flap pair performs a differential movement to form an opening to perform a demodulation operation on a modulated air pressure variation.
H03B 5/12 - Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
H03B 5/30 - Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
A venting device includes a first flap, which is configured to be actuated to swing upward during a rising time, and a second flap, which is disposed opposite to the first flap and configured to be actuated to swing downward during a falling time, a first actuating portion disposed on the first flap, and a second actuating portion disposed on the second flap. The venting device configured to form a vent is disposed within a wearable sound device or to be disposed within the wearable sound device. The vent is formed via applying a first voltage to the first actuating portion and applying a second voltage on the second actuating portion, such that the venting device gradually forms the vent.
A speaker system includes a first acoustic transducer, a second acoustic transducer and a spreading structure. The first acoustic transducer is configured to generate a first acoustic wave. The second acoustic transducer is configured to generate a second acoustic wave. The spreading structure is disposed over the first acoustic transducer and configured to guide the first acoustic wave to propagate through a sound passage formed within the spreading structure. A directionality of the first acoustic wave is spread at a sound outlet of the spreading structure after the first acoustic wave propagates through the sound passage in the spreading structure.
H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
A sound producing cell includes a membrane and an actuating layer. The membrane includes a first membrane subpart and a second membrane subpart, wherein the first membrane subpart and the second membrane subpart are opposite to each other. The actuating layer is disposed on the first membrane subpart and the second membrane subpart. The first membrane subpart includes a first anchored edge which is fully or partially anchored, and edges of the first membrane subpart other than the first anchored edge are non-anchored. The second membrane subpart includes a second anchored edge which is fully or partially anchored, and edges of the second membrane subpart other than the second anchored edge are non-anchored.
A package structure includes a cover and a cell disposed within the cover. The cell includes a membrane, an actuating layer and an anchor structure. The membrane includes a first membrane subpart and a second membrane subpart, wherein the first membrane subpart and the second membrane subpart are opposite to each other in a top view. The actuating layer is disposed on the first membrane subpart and the second membrane subpart in the top-view direction. The membrane is anchored by the anchor structure. The first membrane subpart includes a first anchored edge which is fully or partially anchored, and edges of the first membrane subpart other than the first anchored edge are non-anchored. The second membrane subpart includes a second anchored edge which is fully or partially anchored, and edges of the second membrane subpart other than the second anchored edge are non-anchored.
A driving circuit, configured to drive a venting device, includes a first node, a second node, and an amplifying circuit. The venting device, configured to be controlled to open a vent or seal the vent, includes a film structure, which includes a first flap and a second flap, and an actuator, which includes a first actuating portion disposed on the first flap and a second actuating portion disposed on the second flap. When the venting device is controlled to open the vent, the driving circuit generates a first voltage at the first node and generates a second voltage at the second node. When the venting device is controlled to seal the vent, the driving circuit generates a third voltage at both the first node and the second node. The first voltage is larger than the third voltage, and the third voltage is larger than the second voltage.
A method is applied in a controller within a driving circuit comprising a driving sub-circuit configured to drive a load. The method comprises steps of: performing a table learning operation on a table at least at a first rate during a learning period; and performing the table learning operation on the table at a second rate lower than the first rate after the learning period; wherein the table is stored in a memory within the controller. The table learning operation comprises steps of: receiving a first feedback signal from the load corresponding to a first cycle; obtaining a control code from the table according to the first feedback signal; generating a control signal according to the control code; receiving a second feedback signal from the load corresponding to the second cycle; and updating the control code and saving the updated control code back to the table in the memory.
An acoustic impedance measuring system configured to measure an acoustic impedance of an acoustic component includes a first chamber, a second chamber, a first sound pressure sensing device, a second sound pressure sensing device and a sound source. The first sound pressure sensing device is configured to sense a sound pressure in the first chamber. The second sound pressure sensing device is configured to sense a sound pressure in the second chamber. The sound source is connected to the first chamber, wherein the sound source generates a sound propagating towards a first cavity inside the first chamber. The acoustic component is disposed between the first chamber and the second chamber for being measured the acoustic impedance of the acoustic component, and the acoustic impedance of the acoustic component is measured by the first sound pressure sensing device and the second sound pressure sensing device.
An air-pulse generating device includes a film structure. The film structure is driven by a modulation-driving signal, so as to form an amplitude-modulated ultrasonic air pressure variation with an ultrasonic carrier frequency. The film structure is driven by a first demodulation-driving signal and a second demodulation-driving signal, so as to form an opening at a rate synchronous with the ultrasonic carrier frequency. The air-pulse generating device produces a plurality of air pulses according to the amplitude-modulated ultrasonic air pressure variation.
An air-pulse generating device includes a film structure. The film structure is actuated such that the air-pulse generating device produces a plurality of air pulses. A horn-shaped outlet is formed within the air-pulse generating device, and the plurality of air pulses is propagated via the horn-shaped outlet.
An air-pulse generating device includes a film structure including a flap pair. The film structure is actuated to perform a common mode movement, so as to form an amplitude-modulated ultrasonic air pressure variation with an ultrasonic carrier frequency. The film structure is actuated to perform a differential mode movement, so as to form an opening at a rate synchronous with the ultrasonic carrier frequency. The air-pulse generating device produces a plurality of air pulses according to the amplitude-modulated ultrasonic air pressure variation.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
H04R 3/04 - Circuits for transducers for correcting frequency response
H04R 7/06 - Plane diaphragms comprising a plurality of sections or layers
A feedback control system configured to drive a load is disclosed. The feedback control system includes an up-sampling circuit, configured to perform an un-sampling operation on a source signal and produce an up-sampled signal with an up-sampling frequency according to the up-sampled signal and a feedback signal from the load; a delta circuit, coupled to the up-sampling circuit and configured to produce a delta signal; a sigma circuit, configured to produce a density modulation signal according to the delta signal; and a driving device, configured to drive the load according to the density modulation signal with the up-sampling frequency.
The present invention discloses a feedback control system. The feedback control system comprises a plant, configured to produce an output according to a control signal; a first summing block, configured to produce a first difference between an input signal and a measured output signal; a first controller, configured to generate the control signal, such that the first difference decreases to be less than a first threshold or is less than the first threshold; wherein the first controller comprises a memory configured to store a table, and the table contains information of a plurality of transfer functions corresponding to a plurality of operating conditions; wherein the first controller determines an operating condition under which the plant operates, and chooses to utilize a transfer function corresponding to the operating condition to generate the control signal according to the transfer function and the first difference.
G05B 13/04 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
51.
Air-pulse generating device producing asymmetric air pulses
An air-pulse generating device includes a film structure. The film structure is driven to form an amplitude-modulated ultrasonic air pressure variation with an ultrasonic carrier frequency. The film structure is driven to form an opening at a rate synchronous with the ultrasonic carrier frequency. The air-pulse generating device produces a plurality of air pulses according to the amplitude-modulated ultrasonic air pressure variation, and the plurality of air pulses is asymmetric.
A method is applied in a pulse width modulation (PWM) controller within a driving circuit including a bidirectional circuit coupled to a load. The method includes steps of: obtaining a pulse width control code (PWCC) from a table stored in a memory within the PWM controller according to a difference between a first feedback signal from the load and an input signal, wherein the PWCC is corresponding to an intended voltage difference, and the first feedback signal is corresponding to a first cycle; generating a plurality of PWM signals according to the PWCC, wherein during a second cycle the bidirectional circuit performs a charging or discharging operation on the load according to the PWM signals; receiving a second feedback signal from the load corresponding to the second cycle; and updating the PWCC according to the first and second feedback signals, and saving the updated PWCC back to the table.
H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
H04R 3/02 - Circuits for transducers for preventing acoustic reaction
H02M 3/157 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators with digital control
A wearable sound device includes a venting device including a film structure and an actuator and a driving circuit configured to be controlled by a controller and to drive the actuator, such that the film structure is controlled to form a vent or to seal the vent. The controller is coupled to a sensing device configured to generate a sensing result and determine whether to seal the vent according to the sensing result. The film structure partitions a space within the wearable sound device into a first volume and a second volume. The first volume is connected to or to be connected to an ear canal of a wearable sound device user. The second volume is connected to or to be connected to an ambient of the wearable sound device. The first volume and the second volume are connected via the vent when the vent is formed.
G10K 11/00 - Methods or devices for transmitting, conducting or directing sound in generalMethods or devices for protecting against, or for damping, noise or other acoustic waves in general
A successive approximation register (SAR) analog-to-digital converter (ADC) includes a comparator, a threshold generator and a controller. The comparator receives an analog signal and the SAR ADC outputs an output codeword. The comparator performs a plurality of first comparisons and a plurality of second comparisons. The controller determines a plurality of most significant bits of the output codeword according to a plurality of first comparison results corresponding to the first comparisons. The first comparisons are performed by comparing the analog signal with a plurality of first thresholds. The controller determines a plurality of least significant bits of the output codeword according to a plurality of second comparison results corresponding to the second comparisons. The second comparisons are performed by comparing the analog signal with a second threshold. The controller controls the threshold generator to produce the plurality of first thresholds and the second threshold according to the first comparison results.
A venting device is disposed within a wearable sound device or to be disposed within the wearable sound device. The venting device includes an anchor structure, a film structure and an actuator. The film structure includes an anchor end anchored on the anchor structure and a free end, and the film structure is configured to form a vent or close the vent. The actuator is disposed on the film structure. The film structure partitions a space into a first volume and a second volume, and the first volume and the second volume are connected via the vent when the vent is formed. The venting device is controlled by the controller to seal the vent when the controller determines to close the vent.
A sound producing cell includes a membrane and an actuating layer. The actuating layer is disposed on the membrane. The membrane is actuated by the actuating layer to produce sound. A plurality of holes is formed on the membrane.
A cell includes a membrane and an actuating layer. The membrane includes a first membrane subpart and a second membrane subpart, wherein the first membrane subpart and the second membrane subpart are opposite to each other. The actuating layer is disposed on the first membrane subpart and the second membrane subpart. The first membrane subpart includes a first anchored edge which is fully or partially anchored, and edges of the first membrane subpart other than the first anchored edge are non-anchored. The second membrane subpart includes a second anchored edge which is fully or partially anchored, and edges of the second membrane subpart other than the second anchored edge are non-anchored.
A method, which is applied in a driving circuit including an analog-to-digital convertor (ADC) and a switching circuit including an inductor and coupled to a load, includes steps of: performing an analog-to-digital conversion on a load voltage of the load at a first rate; and producing at least a current pulse flowing through the inductor at a second rate. Wherein, each current pulse among the at least a current pulse is accomplished within a second cycle corresponding to the second rate, all of the at least a current pulse are accomplished within a first cycle corresponding to the first rate, and a first length of the first cycle is longer than twice of a second length of the second cycle.
H03M 7/00 - Conversion of a code where information is represented by a given sequence or number of digits to a code where the same information is represented by a different sequence or number of digits
A sound producing cell includes a membrane and an actuating layer. The membrane includes a first membrane subpart and a second membrane subpart, wherein the first membrane subpart and the second membrane subpart are opposite to each other. The actuating layer is disposed on the first membrane subpart and the second membrane subpart. The first membrane subpart includes a first anchored edge which is fully or partially anchored, and edges of the first membrane subpart other than the first anchored edge are non-anchored. The second membrane subpart includes a second anchored edge which is fully or partially anchored, and edges of the second membrane subpart other than the second anchored edge are non-anchored.
A manufacturing method for a device includes: providing a wafer including a first layer and a second layer; forming and patterning an actuating material formed on the wafer; patterning the first layer of the wafer to form a trench line; and removing a first part of the second layer. The first layer forms a film structure including a membrane. A slit is formed within and penetrates through the membrane because of the trench line. The film structure is actuated to form a vent temporarily because of the slit. An ear canal and an ambient of a wearable sound device are to be connected via the vent temporarily opened. The slit divides the membrane into a first membrane portion and a second membrane portion. A difference between the displacements of these two membrane portions is larger than a thickness of the membrane when the vent is formed.
09 - Scientific and electric apparatus and instruments
Goods & Services
Valves for controlling and regulating the flow of gases or liquids not being parts of plumbing, heating, cooling installations or machines; Automatic valves; Automatic valves for consumer audio earbuds, headphones and medical or consumer hearing aid devices; Control valves for regulating the flow of gases and liquids; Electric valve actuators; Electronic valves for controlling gas or fluids; Pressure relief valves for consumer audio earbuds, headphones and medical or consumer hearing aid devices
09 - Scientific and electric apparatus and instruments
Goods & Services
Audio amplifiers; Audio and visual headsets for use in playing video games; Audio circuit boards; Audio electronic components, namely, surround sound systems; Audio equipment for vehicles, namely, loud speakers for automotive audio systems; Audio equipment for vehicles, namely, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio headphones; Audio receivers; Audio speakers; Audio speakers for automobiles; Semi-conductors; Semiconductor chip sets; Semiconductor chip sets for use in piezo MEMS speakers and valves; Semiconductor chips; Semiconductor devices; Semiconductors; Speaker microphones; Valve amplifiers; Automated valves for smartphones, consumer audio devices, namely, headphones, earbuds, and hearing aid devices.; Automatic valves; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Electric audio playback units; Electric valve actuators; Electric audio playback units with lights and speakers; Electronic semi-conductors; Electronic valves for controlling gas or fluids; Electronic components in the nature of piezo MEMS speakers and valves; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, namely, audio processors; Pressure relief valves for consumer audio devices, namely, headphones, earbuds, and hearing aid devices.; Signal processors for audio speakers
63.
Sound producing cell and manufacturing method thereof
A sound producing cell includes a membrane and an actuating layer. The membrane includes a first membrane subpart and a second membrane subpart, wherein the first membrane subpart and the second membrane subpart are opposite to each other. The actuating layer is disposed on the first membrane subpart and the second membrane subpart. The first membrane subpart includes a first anchored edge which is fully or partially anchored, and edges of the first membrane subpart other than the first anchored edge are non-anchored. The second membrane subpart includes a second anchored edge which is fully or partially anchored, and edges of the second membrane subpart other than the second anchored edge are non-anchored.
A package structure includes a first substrate and a first device disposed on the first substrate. The first device includes at least one anchor structure, a film structure anchored by the anchor structure and an actuator configured to control the film structure to form a first vent temporarily. The film structure partitions a space into a first volume to be connected to an ear canal and a second volume connected to an ambient of a wearable sound device. The ear canal and the ambient are connected via the first vent when the first vent is opened. The first vent is opened by controlling a first membrane portion and a second membrane portion of the film structure, such that a difference between a first displacement of the first membrane portion and a second displacement of the second membrane portion is larger than a thickness of the film structure.
A linearity compensation method for a sound producing device (SPD) includes steps of: applying a test signal on a first SPD; obtaining an acoustic measurement result generated from the first SPD according to the test signal; generating a compensation curve according to the acoustic measurement result; and performing a linearity compensation operation on a second SPD according to the compensation curve.
An air-pulse generating device includes a membrane structure, a valve structure, and a cover structure. A chamber is formed between the membrane structure, the valve structure and the cover structure. An air wave vibrating at an operating frequency is formed within the chamber. The valve structure is configured to be actuated to perform an open-and-close movement to form at least one opening. The at least one opening connects air inside the chamber with air outside the chamber. The open-and-close movement is synchronous with the operating frequency.
An air-pulse generating device includes a membrane structure, a valve structure, and a cover structure. A chamber is formed between the membrane structure, the valve structure and the cover structure. An air wave vibrating at an operating frequency is formed within the chamber. The valve structure is configured to be actuated to perform an open-and-close movement to form at least one opening. The at least one opening connects air inside the chamber with air outside the chamber. The open-and-close movement is synchronous with the operating frequency.
An air-pulse generating device includes a membrane structure, a valve structure, and a cover structure. A chamber is formed between the membrane structure, the valve structure and the cover structure. An air wave vibrating at an operating frequency is formed within the chamber. The valve structure is configured to be actuated to perform an open-and-close movement to form at least one opening. The at least one opening connects air inside the chamber with air outside the chamber. The open-and-close movement is synchronous with the operating frequency.
A testing apparatus including a testing platform, a loading device, a testing-signal generating device, a sound sensing device, a control unit, and an unloading device is disclosed. The loading device is configured to load a plurality of under-test devices to the testing platform. The testing-signal generating device is configured to generate at least one testing signal. The plurality of under-test devices receives the at least one testing signal and produces at least one testing sound-according to the at least one testing signal. The sound sensing device is configured to receive the at least one testing sound. The control unit controls the unloading device to unload the plurality of under-test devices from the testing platform and controls the unloading device to categorize the plurality of under-test devices into a plurality of groups according to the at least one testing sound received by the sound sensing device.
A signal density modulation (SDM) encoder includes a first subtractor, a sigma circuit and a multi-bit quantizer. The first subtractor is used for receiving an input signal. The sigma circuit is coupled to the first subtractor. The multi-bit quantizer, coupled to the first subtractor and the sigma circuit, is configured to generate an output signal. The sigma circuit or the multi-bit quantizer produces a first feedback signal to the first subtractor. The first subtractor performs a subtraction operation according to the first feedback signal and the input signal, and generates a delta signal. The sigma circuit performs an operation on the delta signal, such that the SDM encoder has a noise transfer function having a high pass filtering effect. The noise transfer function is a ratio of a quantization error brought by the multi-bit quantizer with respect to the input signal. The output signal has more than two levels.
A filter is disclosed. The filter includes at least one first multiplication approximation unit, for approximating at least one first multiplication operation corresponding to at least one first coefficient with at least one first bit-wise shift operation; and at least one second multiplication approximation unit, for approximating at least one second multiplication operation corresponding to at least one second coefficient with a plurality of second bit-wise shift operations and at least one addition operation.
A method, applied in a driving circuit including a bidirectional circuit coupled between a voltage source and a load, includes receiving a feedback signal from the load and an input signal; generating a plurality of pulse width modulation (PWM) signals according to the input signal and the feedback signal; driving the load by the bidirectional circuit according to the plurality of PWM signals such that the input signal and the feedback signal are substantially proportional to each other. The input signal is a time varying signal. The step of generating a PWM signal among the plurality of PWM signals according to the input signal and the feedback signal includes determining a difference according to the input signal and the feedback signal; and generating the PWM signal with a pulse width. The pulse width is determined according to the difference.
H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
H02M 3/157 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators with digital control
A digital-to-analog converter (DAC) includes a plurality of reference modules, an output capacitor configured to output the analog voltage, and a sharing switch coupled between the output capacitor and the reference modules. The reference modules are mutually connected in parallel. Each reference module includes a reference capacitor and a reference switch connected in series. A plurality of reference capacitances of the reference capacitors are substantially identical. The reference switches are controlled by a plurality of control signals. The control signals are corresponding to a control code. The DAC produces an analog voltage according to the control code. An analog difference, between a first analog voltage corresponding to a first control code and a second analog voltage corresponding to a second control code, monotonically increases or monotonically decreases as a first value corresponding to the first control code increases. The first control code is consecutive to the second control code.
A bidirectional charging and discharging circuit is coupled between a voltage source and a capacitive load and configured to drive the capacitive load. The bidirectional charging and discharging circuit includes a first switch, comprising a first terminal coupled to the voltage source; a second switch, comprising a first terminal coupled to a second terminal of the first switch, and a second terminal coupled to a ground; an inductor, comprising a first terminal coupled to the second terminal of the first switch and the first terminal of the second switch; a third switch, comprising a first terminal coupled to a second terminal of the inductor, and a second terminal coupled to a first terminal of the capacitive load; and a fourth switch, comprising a first terminal coupled to the second terminal of the inductor and the first terminal of the third switch, and a second terminal coupled to a ground.
H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
H02M 3/155 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
An acoustic transducer is disposed within a wearable sound device or to be disposed within the wearable sound device. The acoustic transducer includes a first anchor structure and a first flap. The first flap includes a first end and a second end. The first end is anchored by the first anchor structure, and the second end is configured to perform a first up-and-down movement to form a vent temporarily. The first flap partitions a space into a first volume to be connected to an ear canal and a second volume to be connected to an ambient of the wearable sound device. The ear canal and the ambient are connected via the vent temporarily opened.
A crossover circuit, disposed within a sound producing device including a first sound producing cell driven by a first driving signal and a second sound producing cell driven by a second driving signal, includes a first filter receiving an input signal at an input terminal of the first filter, a first subtraction circuit, and a second filter coupled between the output terminal of the first filter and the second input terminal of the first subtraction circuit. A first input terminal of the first subtraction circuit is coupled to the input terminal of the first filter; a second input terminal of the first subtraction circuit is coupled to an output terminal of the first filter. The crossover circuit produces the first driving signal and the second driving signal according to a first output signal of the first subtraction circuit and a second output signal of the first filter respectively.
A sound producing package structure includes a plurality of chips disposed within a cavity. The chips includes a first chip and a second chip, the first chip includes a first sound producing membrane and a first actuator attached to the first sound producing membrane, and a second chip includes a second sound producing membrane and a second actuator attached to the second sound producing membrane. The first sound producing membrane and the second sound producing membrane are actuated toward a center of the cavity in a synchronous fashion so as to produce a sound pressure.
H04R 7/06 - Plane diaphragms comprising a plurality of sections or layers
H04R 7/16 - Mounting or tensioning of diaphragms or cones
H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
H04R 19/01 - Electrostatic transducers characterised by the use of electrets
An acoustic transducer is configured to perform an acoustic transformation. The acoustic transducer is disposed within a wearable sound device or to be disposed within the wearable sound device. The acoustic transducer includes at least one anchor structure, a film structure and an actuator. The film structure is disposed within a first layer and anchored by the anchor structure disposed within a second layer. The actuator is disposed on the film structure, and the actuator is configured to actuate the film structure to form a vent temporarily. The film structure partitions a space into a first volume to be connected to an ear canal of a wearable sound device user and a second volume to be connected to an ambient of the wearable sound device. The ear canal and the ambient are to be connected via the vent temporarily opened when the film structure is actuated.
An acoustic testing method includes providing an electrical signal to a wafer, receiving a sound wave generated by the acoustic transducer according to the electrical signal, and generating a sensing result for determining an acoustic functionality of the acoustic transducer. The wafer includes a plurality of acoustic transducers, and the electrical signal is provided to an acoustic transducer within the wafer.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
80.
Sound producing package structure and method for packaging sound producing package structure
A sound producing package structure configured to produce sound includes a substrate, a sound producing component and a conductive adhesive layer. The sound producing component is disposed on the substrate, and the sound producing component is configured to generate an acoustic wave corresponding to an input audio signal. The conductive adhesive layer is disposed between the substrate and the sound producing component by a surface mount technology.
A sound producing package structure includes a shell and a chip. The shell includes a top structure, a bottom structure and a sidewall structure. The chip is disposed inside the shell and configured to produce an acoustic wave, wherein the chip includes a thin film structure and an actuator configured to actuate the thin film structure, and the thin film structure is substantially parallel to the top structure and the bottom structure. A first opening is formed on the sidewall structure, and the acoustic wave propagates outwards through the first opening.
A package structure includes a housing and a sound producing chip. The sound producing chip is disposed within the housing. The sound producing chip includes a membrane and an actuator. The membrane includes a coupling plate and a spring structure connected to the coupling plate. The actuator is configured to receive a driving signal to actuate the membrane. The spring structure is situated between the coupling plate and the actuator. The coupling plate is actuated to move by the actuator via the spring structure.
A system, disposed within a wearable hearing device, includes a sound producing device (SPD) driven by a driving voltage, a first sound sensing device, and a subtraction circuit. The first sound sensing device is configured to sense a combined sound pressure produced at least by the SPD and generate a sensed signal accordingly. The subtraction circuit has a first input terminal, a second input terminal, and a first output terminal. The first input terminal is coupled to the first sound sensing device, and the first output terminal is coupled to the SPD. A first phase delay between the driving voltage and the sensed signal is less than 60°.
A sound producing device is provided. The sound producing device comprises a substrate; and a membrane pair, disposed on the substrate, comprising a first membrane and a second membrane; wherein when a driving voltage is applied on the membrane pair, the first membrane and the second membrane deform toward each other, such that air between the first membrane and the second membrane is squeezed outward and an air pulse is generated toward a direction away from the substrate.
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
A sound producing device includes a first sound producing cell, driven by a first driving signal and configured to produce a first acoustic sound on a first audio band, and a second sound producing cell, driven by a second driving signal and configured to produce a second acoustic sound on a second audio band different from the first audio band. A first membrane of the first sound producing cell and a second membrane of the second sound producing cell are Micro Electro Mechanical System fabricated membranes. The first audio band is upper bounded by a first maximum frequency; the second audio band is upper bounded by a second maximum frequency. A first resonance frequency of the first membrane is higher than the first maximum frequency of the first driving signal. A second resonance frequency of the second membrane is higher than the second maximum frequency of the second driving signal.
G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
A driving circuit is disclosed. The driving circuit includes a first node, coupled to at least a first air pulse generating element, wherein the driving circuit produces a first driving signal to the at least a first air pulse generating element via the first node; a second node, coupled to at least a second air pulse generating element, wherein the driving circuit produces a second driving signal to the at least a second air pulse generating element via the second node; a first swapping module, coupled to the first node and the second node, configured to be conducted within a first conduction interval; wherein a first voltage level at the first node and a second voltage level at the second node are substantially swapped after the first conduction interval.
A sound producing device includes a base and at least one chip disposed on the base. The chip includes at least one membrane and at least one actuator. The membrane includes a coupling plate and at least one spring structure connected to the coupling plate. The actuator is configured to receive a driving signal corresponding to an input audio signal to actuate the membrane, and the input audio signal and the driving signal have an input audio band which has an upper bound at a maximum frequency. The spring structure is situated between the coupling plate and the actuator. The membrane has a first resonance frequency higher than the maximum frequency.
A sound producing device is disclosed. The sound producing device includes a first air pulse generating element, driven by a first driving signal comprising a first electrical pulse, the first electrical pulse comprises a first transition edge with a first transition polarity; and a second air pulse generating element, disposed adjacent to the first air pulse generating element, driven by a second driving signal comprising a second electrical pulse, the second electrical pulse comprises a second transition edge with a second transition polarity; wherein the first transition polarity is opposite to the second transition polarity; wherein the first transition edge generally coincides with the second transition edge; wherein air pulses generated by the first or the second air pulse generating element produce non-zero offset in terms of sound pressure level.
An air pulse generating element is disclosed. The air pulse generating element includes a membrane, actuated according to a driving signal; a plate, wherein a chamber is formed between the plate and the membrane; wherein during a first phase of the driving signal, the membrane is actuated to change a volume within the chamber to generate an air pulse; wherein during a second phase of the driving signal, the membrane is actuated such that a gap is temporarily formed; wherein the temporarily formed gap is configured to provide a temporary air shunt to accelerate an air balancing process between a first air pressure at a first side of the membrane and a second air pressure at a second side of the membrane.
G10K 9/12 - Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
H04R 3/04 - Circuits for transducers for correcting frequency response
A driving circuit is disclosed. The driving circuit includes a charging circuit, coupled between a voltage source and a load, configured to form a first current from the voltage source to the load; and a discharging circuit, coupled between the voltage source and the load, configured to form a second current from the load back to the voltage source.
H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
H02M 3/155 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
91.
Method of driving circuit with energy recycle capability
A method applied in a driving circuit is disclosed. The driving circuit is coupled between a voltage source and a load and configured to drive the load. The method includes: forming, by the driving circuit, a first current from the voltage source to the load; and forming, by the driving circuit, a second current from the load back to the voltage source.
An audio device includes an electroacoustic convertor and a differential amplifier. The electroacoustic convertor has a first output terminal and a second output terminal. A first polarity of a first capacitance variation corresponding to the first output terminal is opposite to a second polarity of a second capacitance variation corresponding to the second output terminal. The first capacitance variation and the second capacitance variation are associated with a magnitude of acoustic pressure. The differential amplifier has a first input terminal coupled to the first output terminal and a second input terminal coupled to the second output terminal.
A sound producing device includes at least one air pulse generating element. Each of the at least one air pulse generating element includes a membrane, a first air chamber and at least one opening, wherein a chamber pressure exists in the first air chamber. The membrane is actuated to change the chamber pressure of the first air chamber to generate a plurality of air pulses, the air pulses are propagated through the at least one opening, the air pulses produce a non-zero offset in terms of sound pressure level, and the non-zero offset is a deviation from a pressure value of an ambient pressure outside the sound producing device.
An audio apparatus includes a sound sensing device, a first amplifier and a sound producing device. The sound sensing device configured to detect an ambient sound pressure. The first amplifier coupled to the sound sensing device is configured to convert a first signal corresponding to the ambient sound pressure into a second signal with inverted polarity of the first signal. The sound producing device is coupled to the first amplifier and configured to produce a counter sound pressure corresponding to the second signal. Overall phase delay from the ambient sound pressure to the counter sound pressure is less than 25 degrees.
G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
A sound producing device (SPD) is provided. The SPD comprises a membrane, having a resonance frequency and a resonance bandwidth; and an actuator, disposed on the membrane, receiving a driving signal corresponding to an input audio signal; wherein the input audio signal has an input audio band which is upper bounded by a maximum frequency; wherein the resonance frequency is higher than the maximum frequency plus a half of the resonance bandwidth.
A sound producing device includes at least one air pulse generating element. Each of the at least one air pulse generating element includes a membrane, a first air chamber and at least one opening, wherein a chamber pressure exists in the first air chamber, and the opening is connected between the first air chamber and an ambient surrounding the sound producing device. The membrane is actuated to change the chamber pressure of the first air chamber to generate a plurality of air pulses, the air pulses are propagated through the at least one opening, the air pulses produce a non-zero offset in terms of sound pressure level, and the non-zero offset is a deviation from a pressure value of an ambient pressure outside the sound producing device.
H04R 23/00 - Transducers other than those covered by groups
G10K 9/02 - Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas, e.g. suction operated
A sound producing device includes at least one air pulse generating element. Each of the at least one air pulse generating element includes a membrane, a first air chamber and at least one opening, wherein a chamber pressure exists in the first air chamber. The membrane is actuated to change the chamber pressure of the first air chamber to generate a plurality of air pulses, the air pulses are propagated through the at least one opening, the air pulses produce a non-zero offset in terms of sound pressure level, and the non-zero offset is a deviation from a pressure value of an ambient pressure outside the sound producing device. Each pulse cycle has a pulse-generating time segment and a pulse-isolating time segment, the driving signal during the pulse-generating time segment is different from the driving signal during the pulse-isolating time segment.
A sound producing device is provided. The sound producing device includes a membrane, disposed within a chamber, controlled by a membrane control signal to cause a membrane movement; and a first deflector, disposed within a first opening by the membrane, controlled by a first deflector control signal to cause a first deflector rotation; wherein the sound producing device produces a plurality of air pulses via the membrane movement and the first deflector rotation, the plurality of air pulses has an air pulse rate, the air pulse rate is higher than a maximum human audible frequency; wherein the plurality of air pulses produces a non-zero offset in terms of sound pressure level, and the non-zero offset is a deviation from a zero sound pressure level.
A sound producing apparatus is provided. The sound producing apparatus includes a driving circuit, configured to generate a driving signal according to an input audio signal; and a sound producing device; wherein the sound producing device is driven by the driving signal, such that the sound producing device produces a plurality of air pulses at an air pulse rate, the air pulse rate is higher than a maximum human audible frequency; wherein the plurality of air pulses produces a non-zero offset in terms of sound pressure level, and the non-zero offset is a deviation from a zero sound pressure level; wherein the driving signal driving the sound producing device to produce the plurality of air pulses, is unipolar with respect to a first voltage.
A sound producing apparatus is provided. The sound producing apparatus includes a sound producing device disposed at a sound producing location and configured to produce a plurality of air pulses according to a driving signal; a driving circuit, receiving an input audio signal and a channel-shaping signal and configured to generate the driving signal according to the input audio signal and the channel-shaping signal, wherein the channel-shaping signal is related to a channel impulse response of a channel between the sound producing location and a sound constructing location; a signal processing circuit, configured to generate the channel-shaping signal according to the channel impulse response.
H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control
H04R 5/02 - Spatial or constructional arrangements of loudspeakers
H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
H04S 3/00 - Systems employing more than two channels, e.g. quadraphonic
