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JP2023539966A |
A sensor device according to an embodiment of the present application includes an elastic component, a sensor cavity in which a first side wall of the sensor cavity is formed of the elastic component, and an energy conversion component t...
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JP7347514B2 |
A pressure wave generating element is provided that includes a support and a heat generating layer that is provided on the support and generates heat by energization. Moreover, the heat generating layer includes a fiber with at least a p...
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JP7338962B2 |
To provide an electroacoustic conversion device which has a good balance of a low range and a high range, and can generates a sound of a high quality.An earphone 100 includes: a casing structured by a conjugate of a first casing part 401...
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JP2023120699A |
To vary frequency of sound reproduced in a space by sweeping of laser light.A spatial sound reproducing apparatus 10 includes: a laser light source 12 which outputs laser light 18; a driving mechanism 14 which varies irradiation directio...
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JP7319689B2 |
Holographic sound is recorded and reproduced by way of a single monaural recording per left and right ear recorded. This is accomplished by determining the phase shift of frequencies recorded after dividing the sound into discrete freque...
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JP7318714B2 |
A pressure wave-generating device having a support and a heating element film that is disposed over the support and that is configured to generate heat by energization, and the heating element film has a porous metal structure.
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JP7303121B2 |
A micromechanical sound transducer according to a first aspect includes a first bending transducer with a free end and a second bending transducer with a free end, the two bending transducers being arranged in a mutual plane, wherein the...
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JP7292631B2 |
A thermoacoustic device includes a loop tube (11) in which a working gas is sealed; a stack in which a temperature gradient is generated in a tube axis direction of the loop tube (11), the stack being provided in the loop tube (11); and ...
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JP2023081979A |
To provide an optical microphone for use in eyewear devices.An audio system being a component of an eyewear device, includes a transducer assembly, a microphone assembly 320, and a controller. The transducer assembly is coupled to a user...
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JP2023523984A |
An optical microphone module (2) is described for installation in a microphone assembly. The module (2) comprises a semiconductor chip (4), a spacer (6) and an interfering component (8), the spacer (6) being disposed between the semicond...
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JP2023079228A |
To provide a cartilage conduction audio system for use in eyewear devices.An eyewear device 100 is a cartilage conduction audio system that includes a transducer assembly 120, an audio sensor 125 and a controller 130. The transducer asse...
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JP7242854B2 |
An audio system includes a transducer assembly, an optical sensing pathway, a laser, a detector assembly, and a controller. The transducer assembly is coupled to a user's ear and produces an acoustic pressure wave based on an audio instr...
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JP2023509899A |
The present invention is an apparatus and method for detecting acoustic waves propagating towards a membrane carrying a waveguide containing an optical cavity defining a resonant frequency. Under the influence of membrane vibration, the ...
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JP2023504383A |
The present invention expands the availability of ultrasonic transducers capable of broadband response. Kind Code: A1 The present invention relates to graphene-based transducers, including micro-mechanical ultrasonic transducers and elec...
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JP2023504589A |
Disclosed herein are sensing devices and methods of making sensing devices. In some variations, the sensing device includes at least one optical waveguide and at least one WGM resonator (1602a-c) configured to propagate a set of whisperi...
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JP2023500959A |
The optical microphone assembly (2) comprises a substrate (4), an interferometer device, a light source (8) and at least one photodetector (10). The interferometer arrangement comprises a membrane (6) and at least one diffractive optical...
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JP2022546379A |
The present application discloses microphone chips, microphones, and terminal devices. Microphone chips, microphones, and terminal devices may be used in mobile phones, voice recorders, and other devices that need to perform sound collec...
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JP7132008B2 |
To provide a manufacturing method for a stack for a thermoacoustic device that can improve energy exchange efficiency and also suppress an increase in manufacturing cost, a manufacturing apparatus for the stack for the thermoacoustic dev...
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JP7126660B2 |
To provide a wind direction control device capable of being miniaturized.A wind direction control device 1 comprises an ultrasonic element 40 corresponding to a wind direction control part. The ultrasonic element 40 emits ultrasound wave...
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JP7125004B2 |
To provide a MEMS element having high sensitivity.This MEMS element has a slit 5 which is formed in a part of a vibration film 3 fixed to a handle substrate 1, and comprises a vibration area having a free end. The vibration area has the ...
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JP2022528910A |
The optical microphone assembly (2) comprises a microelectromechanical system (MEMS) component (4), a semiconductor chip (6), and an outer housing that contains at least a portion of the non-MEMS support structure and defines an opening ...
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JP7070576B2 |
[Problem] To propose a mechanism capable of performing a noise cancellation process in an ear hole opening type audio processing device.[Solution] An audio processing device including: an audio information acquisition unit that acquires ...
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JP7066004B2 |
According to one embodiment, a sensor includes first and second structure bodies, and a detector. The first structure body includes a supporter, and first and second deformable parts supported by the supporter. The second deformable part...
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JP7059211B2 |
To improve detection sensitivity by increasing both a coupling efficiency ηand a distance L in a laser displacement gauge for measuring surface displacement of a test piece having irregularity on a surface.A laser displacement gauge inc...
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JP7036776B2 |
A display apparatus includes a display module that includes a display panel and is configured to display an image. A rear cover is on a rear surface of the display module. A first vibration generating module is in a first rear region of ...
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JP2022037816A |
To propose a voice processing method that can improve sound quality and reproducibility even for voice data that contains factors that hinder reproducibility in a specific frequency band.The voice processing method includes removing nois...
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JP7014286B2 |
A thermal excitation acoustic-wave-generating device includes a first heating element, a substrate that includes a main surface along which the first heating element is disposed, and a facing body that faces the substrate with the first ...
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JP7009650B2 |
A photonic device comprises a semiconductor substrate (10) and a pressure-sensitive membrane (20). The pressure-sensitive membrane (20) is arranged in or on the substrate (10). A photonic structure (30) is at least partly coupled to the ...
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JP6989514B2 |
An apparatus for guided wave testing of a test object comprises a linear array of receiver electromagnetic acoustic transducers (EMATs), and at least one linear array of transmitter EMATs disposed substantially parallel to the linear arr...
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JP6984899B2 |
A speaker (10) comprises an enclosure (8) defining an internal volume (11); and at least one sound generator (7), the sound generator (7) comprising one or more surfaces defining an air-path conduit (15) through which air operably passes...
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JP6956638B2 |
An aspect of the present invention relates to a laser microphone system (100), comprising: a detection system (191) including plurality of laser subsystems (105A to 105N), each of the plurality of laser subsystems (105A to 105N) configur...
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JP6951491B2 |
A bone conduction speaker is provided. The bone conduction speaker includes: a housing forming an exterior; a stator including a pole piece fitted to a bottom of the housing and a voice coil arranged to an outer circumference of the pole...
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JP6950152B2 |
To improve detection sensitivity.An ultrasonic flaw detection device comprises: an array probe 110 that is configured to include a transmission unit 120 composed of a plurality of oscillators transmitting an ultrasonic to an interior of ...
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JP6915742B2 |
A thermal excitation acoustic-wave-generating device includes a first acoustic wave source that includes a first heating element and a substrate that includes a main surface along which the first heating element is disposed, a second aco...
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JP2021089238A |
To provide a gyro sensor that can reduce the possibility of generation of a sudden change.A gyro sensor 1 includes a bulk ultrasonic resonance element 2, a substrate 3, and a vibration attenuation unit 4. The substrate 3 is deposited on ...
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JP2021078011A |
To transmit information from a first medium to a second medium.An information transmitting method includes the steps of: applying a first electromagnetic wave including transmission information propagating in a first medium to a conversi...
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JP2021034994A |
To provide an electroacoustic conversion device that is able to achieve an improvement in sound pressure in a high frequency bandwidth.An electroacoustic conversion device according to the present invention comprises a housing, an electr...
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JP2021027511A |
To provide an electroacoustic conversion device capable of improving the sound pressure in a high frequency band.An electroacoustic conversion device according to the present invention includes a housing, an electromagnetic sounding body...
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JP2021027506A |
To provide an electroacoustic conversion device capable of improving the sound pressure in a high frequency band.An electroacoustic conversion device according to the present invention includes a housing, an electromagnetic sounding body...
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JP2021010071A |
To provide a speaker capable of suppressing a risk of shortage in displacement amount of a diaphragm.A speaker (10) has a diaphragm (1) and a drive part (2) that drives the diaphragm (1). The drive part (2) has a first ion conductive act...
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JP3229390U |
To provide a movable coil piezoelectric ceramic integrated speaker capable of high frequency control capable of suppressing noise. A ceramic speaker cover is provided under a movable coil speaker 1, there is a space in the ceramic speake...
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JPWO2019159395A1 |
The heat-excited sound wave generator (1) includes a sound wave source (10), a switching element (23), a capacitor (21), and a limiting resistor (22). The sound wave source generates heat by the current supplied from the DC power source ...
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JP2020533881A |
A two-way communication system consists of a non-invasive, non-portable system that enables clear two-way communication. The system generally consists of a mouthpiece element, a relay element, an infrastructure communication device, any ...
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JPWO2020045675A1 |
The thermoacoustic device includes a loop-shaped waveguide, a heat exchanger, and a heat conductive member. The loop-shaped waveguide is filled with a medium. The heat exchanger is provided in a waveguide and has a low temperature part a...
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JP6745774B2 |
According to one embodiment, a sensor includes a supporter, a first film portion, a first sensing element, and a first magnetic portion. The first film portion is supported by the supporter, is deformable, and includes a first fixed end ...
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JP2020123904A |
To provide an electroacoustic conversion device capable of improving acoustic characteristics while miniaturizing equipment.In an electroacoustic conversion device (earphone), a sound production unit 30 includes an electromagnetic sounde...
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JP6719772B2 |
To miniaturize a single directivity type microphone having a ribbon type diaphragm.A microphone includes a bidirectional ribbon type microphone unit (2) and an omnidirectional capacitor type microphone unit (3). The ribbon type microphon...
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JP6715938B2 |
A multi-channel remote audio monitoring device based on a heterodyne interferometric laser Doppler vibrometer. The multi-channel remote audio monitoring device transmits two invisible laser beams to a reflecting surface being vibrated by...
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JP6693023B2 |
A method for generating sound with a motor, including: generating a motor-driving signal having an audio signal component; applying the motor-driving signal to the motor, wherein the motor-driving signal drives the motor to generate a so...
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JP6658291B2 |
Provided is an ultrasonic measuring device wherein the position of an optical detection unit with respect to a vibrating film is not needed to be set with a high positional accuracy in plan view of a substrate. An ultrasonic transducer d...
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