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WO/2024/079914A1 |
This ultrasonic transducer comprises: a piezoelectric element layer that has a piezoelectric element which sends and receives ultrasonic waves; a dematching layer that is laminated on the piezoelectric element layer and that reflects at ...
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WO/2024/065905A1 |
The present invention provides a piezoelectric MEMS loudspeaker. The loudspeaker comprises: a substrate, which has a cavity; a vibration structure, comprising a structural layer, a piezoelectric composite layer, and a flexible layer; the...
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WO/2024/070112A1 |
This ultrasonic transducer comprises: a frame 30 having a first gap 36a and a second gap 36b that is provided above the first gap and close to the first gap, the frame surrounding the first gap in plan view; a substrate 10 provided with ...
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WO/2024/062863A1 |
Provided is a piezoelectric film which can further improve sound pressure. Provided is a piezoelectric film which comprises: a piezoelectric layer composed of a polymer compound piezoelectric material including piezoelectric particles in...
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WO/2024/062469A1 |
An apparatus for automated stacking and bonding of acoustic stack components includes: a tray for storage of stack components, lower jigs, and upper jigs; a first station comprising a plasma dispenser for application of plasma to an uppe...
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WO/2024/057679A1 |
A vibration generation device comprises: piezoelectric elements 10a, 10b that include a piezoelectric layer and a first electrode and a second electrode sandwiching the piezoelectric layer, and that expand and contract in the direction i...
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WO/2024/057821A1 |
This display device comprises: a display unit including a liquid crystal panel; a vibrator that is attached to the reverse side of the front surface of the liquid crystal panel and that is driven so as to vibrate the liquid crystal panel...
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WO/2024/051983A1 |
The invention relates to a vehicle component, wherein the vehicle component has a surface which is at least partly made of a textile fabric, and at least one piezoelectric transducer fiber is introduced into the textile fabric. The piezo...
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WO/2024/048596A1 |
This ultrasonic wave supply device comprises: a first reflection member having a first reflection surface which reflects and focuses ultrasonic waves from an ultrasonic wave radiation surface; a second reflection member having a second r...
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WO/2024/037183A1 |
An audio output method comprises: when an electronic device (100) is in a first audio output mode, driving a piezoelectric sensor (30) to operate and deform so as to drive a display screen (107) connected to the piezoelectric sensor (30)...
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WO/2024/039804A1 |
An isolation mounting for an ultrasonic transducer that includes at least one metal isolation washer and/or a metal load bearing nut. The isolation washer and load bearing nut include raised protrusions on a top surface that minimize the...
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WO/2024/034153A1 |
A piezoelectric vibration device 100 according to the present disclosure comprises a piezoelectric element 120 and a diaphragm 110 that has a first part 115 to which the piezoelectric element 120 is joined and a second part 116 in the pe...
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WO/2024/034391A1 |
An ultrasound generator of the embodiment of the preset invention comprises: a vibrator provided with a piezoelectric body that vibrates from the piezoelectric effect when an AC voltage is applied and thereby generates ultrasonic waves, ...
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WO/2024/034931A1 |
An electronic apparatus comprises: a housing; and an audio input device disposed inside the housing. The audio input device comprises: a substrate including a through hole through which sound waves pass, and a seating groove; a side wall...
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WO/2024/030695A1 |
Audio and haptic signal processing systems and methods are provided. There is provided a method for haptic drive signal generation. The method comprises receiving an input audio signal for driving an audio speaker. The method further com...
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WO/2024/020846A1 |
Disclosed in the embodiments of the present description is an acoustic output device, comprising a vibration element. The vibration element comprises a beam structure extending in a lengthwise direction. The beam structure comprises a pi...
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WO/2024/016146A1 |
An embodiment of the present disclosure provides a driving circuit for driving a capacitive load, such as a piezoelectric MEMS sound transducer. The driving circuit includes a step-up circuit configured to increase a load voltage across ...
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WO/2024/013618A1 |
An apparatus includes at least one actuator configured to generate vibrations over a range of vibration frequencies. The at least one actuator includes a housing configured to be positioned on or within a recipient's body. The actuator f...
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WO/2024/007698A1 |
An electronic device (200), comprising a middle frame (120), a display screen (10), a vibration element (20) and an adhesive member (30). The display screen (10) comprises a first side (101) and a second side (102) arranged opposite each...
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WO/2024/009658A1 |
Provided is an electroacoustic transducer which is formed by disposing a plurality of vibrators in a vibration plate, and in which sound pressure reduction in a high tone range can be suppressed and power consumption can be reduced. The ...
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WO/2024/008132A1 |
The present application relates to the acoustoelectric field, and particularly relates to technologies responsible for collecting various sounds in mobile application scenarios, such as a hearing aid, a mobile phone and an intelligent lo...
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WO/2024/009774A1 |
The present invention addresses the problem of providing an image display device that uses a vibrator to vibrate a display panel and output a voice, the image display device being viewable with sufficient sound pressure up to a high soun...
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WO/2024/006738A1 |
The present application discloses systems and methods for developing acoustic and touch interfaces using one or more structural vibration sensors affixed to a surface. The method utilizes the resonant properties of the structure and mach...
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WO/2024/005015A1 |
The present invention comprises: a voltage generation unit that has a vibration body 22a1 and a fixed electric potential electrode 24 in contact with a reception surface of the vibration body 22a1, and that generates voltage on the outpu...
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WO/2024/005002A1 |
Provided are: an acoustic wave probe comprising a substrate, an intermediate layer arranged on the substrate, and an acoustic lens layer arranged on the intermediate layer, in which the intermediate layer is a layer containing a siloxane...
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WO/2024/001336A1 |
A display module and a display device. The display module comprises a flexible display panel, a substrate layer and an acoustic wave driving structure. The flexible display panel comprises at least one bending region and at least two non...
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WO/2024/002322A1 |
The present application relates to the field of acoustoelectronics, the field of audio devices and the field of multimedia devices, in particular to noise reduction in mobile application scenarios, such as a hearing aid, an earphone and ...
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WO/2023/248530A1 |
An MEMS acoustic element (101) comprises: a first substrate (51) having a first through-hole (51e); a second substrate (52) that is disposed so as to block the first through-hole (51e) and at least partially overlap the first substrate (...
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WO/2023/245807A1 |
Provided in the embodiments of the present description is a loudspeaker. The loudspeaker comprises: a drive assembly, which generates vibration on the basis of an electric signal; a vibration assembly, which vibrates by means of receivin...
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WO/2023/245806A1 |
Provided in the present utility model is an MEMS loudspeaker, comprising a substrate defining a cavity and provided with openings at two ends, a cantilever extending from one end of the substrate to the cavity and at least partially susp...
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WO/2023/248696A1 |
The present invention provides: a piezoelectric film that, in a piezoelectric element having a protrusion for connecting to an external power source, can suppress noise generated by vibrations in the protrusion and also suppresses peelin...
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WO/2023/247473A1 |
The invention relates to a method for producing a MEMS converter for interaction with a volume flow of a fluid. For this purpose, a shaping component for forming a vibration-capable membrane with an actuator layer in the form of a meande...
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WO/2023/237397A1 |
The invention preferably relates to a process for producing a MEMS transducer comprising a membrane and a carrier, wherein the membrane has a meandering structure comprising vertical and horizontal sections. This comprises initially prov...
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WO/2023/221069A1 |
The present description provides a vibration sensor and a microphone. Two ends of each vibration beam are fixed to a base, a middle part thereof is suspended in a cavity, and deformation is generated in response to external vibration exc...
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WO/2023/225126A1 |
An ultrasound transceiver that overcomes many of the deficiencies of conventional ultrasound transceivers by providing the ability to transmit high power and high frequency arbitrary waveforms with low distortion and with the ability to ...
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WO/2023/223955A1 |
Provided are a piezoelectric element and an ultrasonic transducer with which it is possible to increase the operation frequency of a piezoelectric element. A piezoelectric element (1) comprises a metal substrate (2), a lower electrode (4...
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WO/2023/218908A1 |
This MEMS element (1) is equipped with: a piezoelectric element (100) including a piezoelectric film (40) which includes a ferroelectric substance and vibrates as a result of applying a voltage thereto; and a diode unit (200) which is el...
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WO/2023/218690A1 |
A MEMS element (1) comprises: a piezoelectric element (100) that includes a piezoelectric film (40) that includes a ferroelectric and vibrates when voltage is applied thereto; and a diode part (200) that is electrically connected to the ...
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WO/2023/206143A1 |
Embodiments of the present description provide an acoustic output device, comprising: a vibration element provided with a beam structure extending along a length direction; a piezoelectric element used for generating deformation in respo...
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WO/2023/210728A1 |
A hearing device (1) can be disposed inside the body of a mammal. The hearing device (1) comprises a piezoelectric film (60), a plurality of recognition electrodes (30), an electrode layer (50), a substrate (20), and a surface layer (10)...
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WO/2023/204348A1 |
The present invention relates to a smartphone recorder. The smartphone recorder according to an embodiment of the present invention comprises: a case body comprising a front cover attachable to/detachable from the rear surface of a smart...
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WO/2023/203879A1 |
A flexible printed circuit board (140) includes a first surface section (141), a second surface section (142) and a third surface section (143). The first surface section (141) has a first electrode (145) electrically connected to a piez...
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WO/2023/203805A1 |
When seen in a first direction, a slit (151) penetrating a metal plate part (150) and extending in a third direction is formed at the position of a sub-vibration part (110s) of the metal plate part (150). When seen in the first direction...
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WO/2023/200003A1 |
A coating layer having an ultraviolet-resistant effect and impact resistance is provided on the surface of a resin film (8) to form a protective film, which is bonded to the surface of an ultrasonic sensor, thereby protecting the ultraso...
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WO/2023/197290A1 |
Disclosed in the embodiments of the present application are a driving device and an acoustic output device comprising the same. The driving device comprises one or more driving units, each driving unit is provided with a beam-shaped stru...
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WO/2023/195179A1 |
Provided is an ultrasonic wave radiation unit wherein erosion and cleaning irregularity which occur in a vibration plate can be reduced, and the strength of bonding of an ultrasonic transducer to the vibration plate can be increased. Thi...
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WO/2023/193191A1 |
Embodiments of the present description provide an acoustic output device, comprising: a first vibration element, a second vibration element, and a piezoelectric element. In response to an electrical signal, the piezoelectric element driv...
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WO/2023/193186A1 |
One or more embodiments of the present description relate to a vibration apparatus, comprising: a mass element; one or more piezoelectric elements, the one or more piezoelectric elements being configured to generate vibration on the basi...
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WO/2023/188929A1 |
Provided are a piezoelectric film, a piezoelectric element, and an electroacoustic transducer that are capable of suppressing the occurrence of poor appearance when stored for a long time in a wound state. A piezoelectric film having a...
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WO/2023/184515A1 |
Disclosed in embodiments of the present description is an acoustic device. The device comprises a piezoelectric assembly, an electrode and a vibration assembly. The piezoelectric assembly vibrates under the action of a driving voltage; t...
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