50results about "Multiple transducers" patented technology

A vibration device that vibrates in accordance with a reproduction signal. The vibration device includes: a vibration generation section including a speaker that is configured to generate a sound wave in accordance with the reproduction signal, to thereby generate vibration; a power generation section including a piezoelectric element that generates a current corresponding to the reproduction signal by the vibration of the vibration generation section; an electromagnetic wave generation section including a coil substrate, into which the current generated by the power generation section flows to thereby generate an electromagnetic wave that is spatially radiated; and a body section including a cylindrical case that accommodates the vibration generation section, the power generation section, and the electromagnetic wave generation section. The vibration generated by the vibration generation section is transmitted to a user via the case.

Provided in the present disclosure are an integrated bone conduction sound generating device and method. The device includes a controller, a sound generating structure and a functional structure, and the three components are integrated together. The functional structure can touch the oral cavity and / or the teeth of the human body, and after the controller drives the sound generating structure to generate a vibration signal, the functional structure can transmit the vibration signal to the auditory system of the human body through the oral cavity and / or the teeth of the human body.

According to an aspect of the present disclosure, a hearing aid is disclosed. The hearing aid including a vibrator configured to apply a main vibration stimulation onto a skull of a recipient of the hearing aid. The vibrator may include a first assembly which comprises a magnet configured to provide a static magnetic flux and a coil configured to provide a dynamic magnetic flux based on a first current, and the coil may be wrapped around at least a part of the magnet. Furthermore, the vibrator includes a second assembly which includes a vibrator transfer unit and a suspension spring, and wherein the first assembly may be configured to move relative to the second assembly generating a first vibration based on the static and the dynamic magnetic flux, and the first vibration may be transferred to the vibrator transfer unit. Additionally, the vibrator includes a first piezo assembly configured to move based on a second current generating a second vibration, and wherein the first piezo assembly may be connected to the vibrator transfer unit, and when the first piezo assembly moves, a second vibration may be generated, and the second vibration may be transferred to the vibrator transfer unit. The main vibration which is transferred to a skull of the recipient via the vibrator transfer unit may include the first vibration and / or the second vibration.

A method and apparatus for monitoring vehicle window vibrations for voice command recognition are disclosed. An exemplary vehicle includes a vehicle window; an exterior panel; a vibration sensor coupled to the vehicle window to detect audio vibrations; an audio actuator coupled to the exterior panel to vibrate the exterior panel; and a controller. The controller is configured to detect a voice command from a user via the vibration sensor, identify an audio response based on the voice command, and transmit the audio response to the user via the audio actuator.

The present application provides a sound capture method applied to a microphone. The microphone comprises a laser self-mixing device and a diaphragm device, the diaphragm device comprises a membrane configured to respond to sound vibration, and the laser self-mixing device and the diaphragm device are separately configured to detect the vibration of the membrane. In the method, a first voltage signal is obtained using the laser self-mixing device, and a second voltage signal is simultaneously obtained using the diaphragm device. If the first voltage signal is equal to or less than a preset threshold, the first voltage signal is converted into an audio signal, or if the first voltage signal is greater than a preset threshold, the second voltage signal is converted into an audio signal. According to the method of the present application, the audio signal may be collected in two different manners, so that the switching between the two signals is realized using a preset threshold, and the more consistent signal is selected and converted into an audio signal. This can ensure the quality of the audio signal. The present application further relates to a microphone and an electronic device.

The method for audio signal generation may include obtaining a bone conduction audio signal and an air conduction audio signal. The method may also include obtaining a trained machine learning model that provides a mapping relationship between a set of bone conduction data derived from a specific bone conduction audio signal and one or more sets of equivalent air conduction data derived from a specific equivalent air conduction audio signal. The method may also include determining a target set of equivalent air conduction data corresponding to the bone conduction audio signal using the trained machine learning model based on the bone conduction audio signal and the air conduction audio signal. The method may further include causing an audio signal output device to output a target audio signal representing the speech of the user based on the target set of equivalent air conduction data.

The present disclosure provides an acoustic output device including a speaker assembly. The speaker assembly may include a transducer, a diaphragm, and a housing. A vibration of the diaphragm driven by the transducer may generate an air conduction sound wave. The housing may form an accommodating chamber for accommodating the transducer and the diaphragm. The diaphragm may separate the accommodating chamber to form a first chamber and a second chamber. A sound outlet communicating with the second chamber is arranged on the housing. The air conduction sound wave is transmitted to the outside of the acoustic output device through the sound outlet. A sound guiding channel communicating with the sound outlet is provided on the housing for guiding the air conduction sound wave to a target direction outside the acoustic output device. The length of the sound guiding channel may be less than or equal to 7 mm.

This application provides a TWS earphone and a method and apparatus for playing TWS earphones. The TWS earphone includes: an audio signal processing path, a crossover, and at least two speakers; wherein the output terminal of the audio signal processing path is connected to the input terminal of the crossover; the output terminal of the crossover is connected to the at least two speakers; the audio signal processing path is configured to output a speaker driving signal; the crossover is configured to divide the speaker driving signal into at least two frequency bands of sub-audio signals, the at least two frequency bands corresponding to the main operating frequency bands of the at least two speakers; adjacent frequency bands in the at least two frequency bands partially overlap, or adjacent frequency bands in the at least two frequency bands do not overlap; the at least two speakers are configured to play the corresponding sub-audio signals. This application can achieve high sound quality across all frequency bands of the audio source and support ultra-wideband voice calls.

A hybrid sound radiating device according to the invention is used to vibrate a heavy rigid plate at audio frequencies. The device comprises two voice coils arranged concentrically, the outer voice coil being coupled to a fluid reservoir containing a medium including three fluids with a substantially constant viscosity depending on the frequency. A third coil is arranged around the side wall of the fluid reservoir, and two electrodes with opposite polarity are provided in the fluid reservoir to provide a substantially constant electric field in the fluid reservoir. The device further comprises a vibrating element in the form of a heavy rigid plate rigidly connected to the fluid reservoir, and a control circuit connected to the first, second and third coils and to the electrodes.

The present specification provides an acoustic output device, which may include a bone conduction acoustic assembly, an air conduction acoustic assembly, and a housing. The bone conduction acoustic assembly may generate bone conduction acoustic waves. The air conduction acoustic assembly may generate air conduction acoustic waves. The housing may include an accommodating cavity that accommodates the bone conduction acoustic assembly and the air conduction acoustic assembly. At least a portion of the housing may contact a user's skin and transmit the bone conduction acoustic waves through the action of the bone conduction acoustic assembly. The air conduction acoustic waves may be generated based on vibrations when at least one of the housing and the bone conduction acoustic assembly generates the bone conduction acoustic waves.

This microphone provides the ability to switch between unidirectional and omnidirectional patterns without degrading sound quality. [Solution] The microphone 1 comprises a dynamic microphone unit 10 and a condenser microphone unit 90, and a switch 93 allows switching between a dynamic microphone mode in which the dynamic microphone unit is activated, a condenser microphone mode in which the condenser microphone unit is activated, and a hybrid microphone mode in which both the dynamic microphone unit and the condenser microphone unit are activated simultaneously. This makes it possible to switch between unidirectional and omnidirectional modes without degrading sound quality.

A speaker includes a frame (10), a vibration assembly (30) and a magnetic circuit assembly (50). The vibration assembly (30) is assembled on the frame (10). The magnetic circuit assembly (50) is assembled on the frame (10). The vibration assembly (30) includes a voice coil (34) and a piezoelectric element (33), the voice coil (34) and the piezoelectric element (33) are arranged coaxially, and the voice coil (34) is between the piezoelectric element (33) and the magnetic circuit assembly (50).

A micro-speaker for use in hearing and other body worn devices is disclosed, including an acoustic conduit defining an acoustic path between first and second air spaces. A first acoustic transducer is located between the acoustic conduit and the first air space and a second acoustic transducer located between the acoustic conduit and the second air space. The second acoustic transducer is operable to more or less obstruct an acoustic aperture between the acoustic conduit and the second air space, wherein concurrent operation of the first and second acoustic transducers generates an acoustic audio signal that propagates between the first and second air spaces. An acoustic vent between the acoustic conduit and the second air space has an acoustic impedance that is independent of the operation of the second acoustic transducer.

This disclosure provides methods and apparatuses related to a microphone. In an implementation, a microphone includes a laser self-mixing apparatus and a diaphragm apparatus, the diaphragm apparatus includes a membrane configured to respond to a sound vibration, and the laser self-mixing apparatus and the diaphragm apparatus are separately configured to detect a vibration of the membrane. In an example method performed by the microphone, a first voltage signal is obtained by using the laser self-mixing apparatus, and a second voltage signal is simultaneously obtained by using the diaphragm apparatus. If the first voltage signal is less than or equal to a preset threshold, the first voltage signal is converted into an audio signal; or if the first voltage signal is greater than the preset threshold, the second voltage signal is converted into an audio signal.

The present disclosure provides an acoustic output apparatus. The acoustic output apparatus may include a bone-conduction acoustic assembly, an air-conduction acoustic assembly, and a housing. The bone-conduction acoustic assembly may be configured to generate bone-conduction sound waves. The air-conduction acoustic assembly may be configured to generate air-conduction sound waves. The housing may include an accommodating chamber configured to accommodate the bone-conduction acoustic assembly and the air-conduction acoustic assembly. At least a portion of the housing may be in contact with a user's skin to transmit the bone-conduction sound waves under an action of the bone-conduction acoustic assembly. The air-conduction sound waves may be generated based on vibrations of at least one of the housing or the bone-conduction acoustic assembly when the bone-conduction sound waves are generated.

An arrangement for producing sound in an electronic device comprises a magnetic vibrator comprising a first part and a second part provided with permanent magnets, and at least one induction coil. The arrangement further comprises a piezoelectric vibrator comprising piezoelectric material for generating audio-frequency vibrations resulting from deformations of the material by supplying to said material a second electrical signal. The magnetic vibrator and the piezoelectric vibrator have a common audio amplifier. Said first and second electrical signal are supplied from the same audio output to the magnetic vibrator and the piezoelectric vibrator.

The present disclosure provides an acoustic output device including a speaker assembly. The speaker assembly may include a transducer, a diaphragm, and a housing. A vibration of the diaphragm driven by the transducer may generate an air conduction sound wave. The housing may form an accommodating chamber for accommodating the transducer and the diaphragm. The diaphragm may separate the accommodating chamber to form a first chamber and a second chamber. A sound outlet communicating with the second chamber is arranged on the housing. The air conduction sound wave is transmitted to the outside of the acoustic output device through the sound outlet. A sound guiding channel communicating with the sound outlet is provided on the housing for guiding the air conduction sound wave to a target direction outside the acoustic output device. The length of the sound guiding channel may be less than or equal to 7 mm.

An arrangement for producing sound in an electronic device comprises a magnetic vibrator (101) comprising a first part (203) and a second part (204) provided with permanent magnets, and at least one induction coil (205). The arrangement further comprises a piezoelectric vibrator (102) comprising piezoelectric material for generating audio-frequency vibrations resulting from deformations of the material by supplying to said material a second electrical signal. The magnetic vibrator (101) and the piezoelectric vibrator (102) have a common audio amplifier (103). Said first and second electrical signal are supplied from the same audio output (104) to the magnetic vibrator (101) and the piezoelectric vibrator (102).

The invention relates to a deep learning active sound design system and method. Systems and methods for active sound design (ASD) generation are provided. The system may include one or more speakers and a computing device including a processor and a memory. The memory may be configured to store instructions that, when executed by the processor, are configured to cause the processor to receive one or more inputs for synthetic sound generation, classify the one or more inputs as a fast refresh rate input (FRRI) or a slow refresh rate input (SRRI), allocate one or more processing resources according to a refresh rate, and transmit the one or more processing resources to the processor. An ASD is generated based on the one or more inputs, and the synthesized sound is played on the one or more speakers.

The present disclosure provides an acoustic device. The acoustic device may include a housing, a transducer, and a diaphragm. The housing may be configured to form a cavity. The transducer may be arranged in the cavity and connected to the housing. The housing may produce a bone-conduction sound under an action of the transducer. The diaphragm may be connected between the transducer and the housing to divide the cavity into a first cavity and a second cavity. The housing may be provided with at least one pressure relief hole communicating with the first cavity and at least one sound modulation hole communicating with the second cavity. At least a portion of the at least one pressure relief hole and at least a portion of the at least one sound modulation hole may be arranged adjacently. The housing may be further provided with a sound outlet hole communicating with the second cavity. The diaphragm may produce an air-conduction sound transmitted outward through the sound outlet hole during a relative movement of the transducer and the housing.

The invention relates to a MEMS microphone for detecting sound waves. The MEMS microphone includes a sensor and a housing. The housing surrounds an interior region of the MEMS microphone and has a vent that enables fluid communication between the interior region and an exterior region of the MEMS microphone. Wherein the sensor is a thermal sensor configured to measure acoustic waves from fluid flow through the vent, the acoustic waves causing a pressure difference between an inner region and an outer region of the MEMS microphone. Furthermore, the invention relates to a photoacoustic gas sensor, the sensor chamber of which likewise comprises a sensor and a housing, similar to a MEMS microphone, the housing surrounding the inner region of the sensor chamber and the sensor chamber having a vent allowing fluid communication between the inner region and the outer region of the sensor chamber. The sensor of the sensor chamber, similar to a sensor of a MEMS microphone, is a thermal sensor configured to measure acoustic waves as a function of fluid flow through the vent.

The method for audio signal generation may include obtaining a bone conduction audio signal and an air conduction audio signal. The method may also include obtaining a trained machine learning model that provides a mapping relationship between a set of bone conduction data derived from a specific bone conduction audio signal and one or more sets of equivalent air conduction data derived from a specific equivalent air conduction audio signal. The method may also include determining a target set of equivalent air conduction data corresponding to the bone conduction audio signal using the trained machine learning model based on the bone conduction audio signal and the air conduction audio signal. The method may further include causing an audio signal output device to output a target audio signal representing the speech of the user based on the target set of equivalent air conduction data.

Loudspeaker apparatus (10) for emitting high and low frequency sound waves, comprising: at least one membrane element (12) for generating sound waves, said membrane element (12) being adapted to simultaneously generate sound waves in a first frequency range and in a second frequency range; at least one voice coil / magnet assembly (14, 15) adapted for operatively engaging with the membrane element (12) such that the membrane element (12) is drivable by the voice coil / magnet assembly (14, 15) in the first frequency range to generate sound waves in the first frequency range; and at least one piezoelectric layer or element (17) being arranged at the membrane element (12) in such a way that the membrane element (12) is drivable by the piezoelectric layer or element (17) in the second frequency range in order to generate sound waves in the second frequency range.

To effectively use vibrations generated by a reproduction signal.SOLUTION: A vibration device 1 includes: a vibration generation part 10 having a vibrator that vibrates to a reproduction signal; an electric power generation part 20 having a piezoelectric element for generating weak current corresponding to the reproduction signal by the vibration of the vibration generation part 10; an electromagnetic wave generation part 30 having a coil part 31 into which the weak current generated by the electric power generation part 20 flows; and a body part 4 having a housing 2 for storing the vibration generation part 10, the electric power generation part 20, and the electromagnetic wave generation part 30. The vibration device is arranged and configured so that the weak electromagnetic wave generated by the electromagnetic wave generation part 30 is spatially radiated.SELECTED DRAWING: Figure 1

Acoustic output device, comprising: an acoustic bone conduction assembly for generating bone conduction sound waves; an acoustic air duct assembly for generating air duct sound waves; and A housing for receiving at least part of the acoustic bone conduction assembly and the acoustic air conduction assembly, wherein the housing comprises a first chamber and a second chamber, wherein the first chamber is used to receive at least part of the acoustic bone conduction assembly, wherein the housing is provided with a sound outlet opening which communicates with the second chamber, wherein the air conduction sound waves are transmitted through the sound outlet opening to the environment of the acoustic output device, wherein the housing is further provided with at least one sound regulating opening which communicates with the second chamber, and wherein a peak resonance frequency of the resonance peak in an open state of the at least one sound regulating opening is shifted towards higher frequencies compared to a peak resonance frequency of the resonance peak in a closed state of the at least one sound regulating opening.

The present disclosure relates to a dual-functional transducer. The present invention discloses a dual-functional transducer assembly, the dual-functional transducer assembly comprising: a magnet motor assembly including a first magnet plate and a second magnet plate arranged parallel to each other along a first axis; a sound output assembly coupled to the magnet motor assembly, the sound output assembly including a piston and a voice coil, and wherein the voice coil is arranged to cause the piston to vibrate in a direction parallel to the first axis; and a shaker assembly coupled to the magnet motor assembly, the shaker assembly including a first shaker coil and a second shaker coil, the first shaker coil and the second shaker coil being arranged to cause the magnet assembly to vibrate in a direction parallel to a second axis, the second axis being perpendicular to the first axis.

The present disclosure provides an acoustic device. The acoustic device may include a housing, a transducer, and a diaphragm. The housing may be configured to form a cavity. The transducer may be arranged in the cavity and connected to the housing. The housing may produce a bone-conduction sound under an action of the transducer. The diaphragm may be connected between the transducer and the housing to divide the cavity into a first cavity and a second cavity. The housing may be provided with at least one pressure relief hole communicating with the first cavity and at least one sound modulation hole communicating with the second cavity. At least a portion of the at least one pressure relief hole and at least a portion of the at least one sound modulation hole may be arranged adjacently. The housing may be further provided with a sound outlet hole communicating with the second cavity. The diaphragm may produce an air-conduction sound transmitted outward through the sound outlet hole during a relative movement of the transducer and the housing.

Systems and methods for active sound design (ASD) generation are provided. The system may comprise one or more speakers and a computing device, comprising a processor and a memory. The memory may be configured to store instructions that, when executed by the processor, are configured to cause the processor to receive one or more inputs for synthetic sound generation, classify the one or more inputs as fast refresh rate inputs (FRRIs) or slow refresh rate inputs (SRRIs), assign one or more processing resources as a function of refresh rate, generate ASD based on the one or more inputs, and play the synthetic sound on the one or more speakers.

A micro-speaker for use in hearing and other body worn devices is disclosed, including an acoustic conduit defining an acoustic path between first and second air spaces. A first acoustic transducer is located between the acoustic conduit and the first air space and a second acoustic transducer located between the acoustic conduit and the second air space. The second acoustic transducer is operable to more or less obstruct an acoustic aperture between the acoustic conduit and the second air space, wherein concurrent operation of the first and second acoustic transducers generates an acoustic audio signal that propagates between the first and second air spaces. An acoustic vent between the acoustic conduit and the second air space has an acoustic impedance that is independent of the operation of the second acoustic transducer.

The invention relates to a MEMS microphone for detecting sound waves. The MEMS microphone comprises a sensor and a housing. The housing encloses an inner region of the MEMS microphone and has a ventilation opening that allows fluid communication between the inner region and an outer region of the MEMS microphone. The sensor is a thermal sensor configured to measure sound waves, which result in a pressure difference between the inner region and the outer region of the MEMS microphone, by means of a fluid flow through the ventilation opening. Furthermore, the invention relates to a photoacoustic gas sensor, the sensor chamber of which, analogous to the MEMS microphone, also comprises a sensor and a housing, wherein the housing encloses an inner region of the sensor chamber and the sensor chamber has a ventilation opening that allows fluid communication between the inner region and an outer region of the sensor chamber.The sensor in the sensor chamber, analogous to the sensor in the MEMS microphone, is a thermal sensor configured to measure sound waves based on a fluid flow through the ventilation opening.