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WO/2022/192840A1 |
A method of designing and forming at least one element of an acoustic transducer. The method includes receiving one or more required operating parameters of the at least one element of the acoustic transducer for an application, iterativ...
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WO/2022/190715A1 |
Provided is a highly-flexible piezoelectric film capable of sufficiently ensuring conduction through an electrode layer. The piezoelectric film comprises a piezoelectric layer, electrode layers respectively formed on both sides of the pi...
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WO/2022/190807A1 |
The present invention addresses the problem of providing a piezoelectric film that has good durability, is capable of outputting a sound with high sound pressure, and can also lower resistance in an electrode layer to suppress heat gener...
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WO/2022/191192A1 |
A piezoelectric element comprising a support (10) and a vibration portion (20) disposed on the support (10), the vibration portion (20) including a support region (21a) supported on the support (10) and a plurality of vibration regions (...
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WO/2022/190729A1 |
Provided is a multilayer piezoelectric element in which heat generation can be reduced while a good piezoelectric property is maintained. This multilayer piezoelectric element is a laminate of a plurality of piezoelectric films each havi...
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WO/2022/190804A1 |
The present invention addresses the problem of preventing, in a projection screen in which a piezoelectric acoustic film is adhered to the rear surface-side, audio output at the rear surface-side from wrapping around to the projection su...
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WO/2022/185744A1 |
An ultrasonic sensor (101) comprises: a case (1); a piezoelectric element (5) positioned on a bottom panel (2) in the interior of the case (1); a signal terminal; and a flexible substrate (7). The flexible substrate (7) is connected to t...
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WO/2022/186288A1 |
The purpose of the present invention is to provide an ultrasound supply device which can acquire information about the periphery of a ultrasound output unit. This ultrasound supply device 100 is provided with: a first reflective member w...
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WO/2022/185763A1 |
This ultrasonic sensor (1) comprises: a case (10) having a bottomed cylinder shape and including a bottom part (11) and a circumferential wall part (15) that extends from the bottom part (11) along an axial direction (Z) of a central axi...
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WO/2022/180161A1 |
A MEMS acoustic transducer array (10*) comprises at least two acoustic transducers (12, 13, 14), a first acoustic transducer (14) of the at least two acoustic transducers being designed to reproduce an amplitude characteristic of a first...
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WO/2022/176002A1 |
The present invention addresses the problem of providing an ultrasonic transducer for a measurement apparatus, whereby the frequency band suitable for the transmission and reception of ultrasonic waves can be widened. This ultrasonic tra...
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WO/2022/168826A1 |
This piezoelectric element comprises a support (10) and a vibrating portion (20) disposed on the support (10). The vibrating portion (20) includes a piezoelectric film (50) and an electrode film (60) connected to the piezoelectric film (...
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WO/2022/168188A1 |
This ultrasonic transducer comprises: a support board that has a plurality of recesses opened in a first surface and a plurality of waveguides opened in a second surface; a flexible resin film that is fixed to the support board; and a pl...
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WO/2022/152301A1 |
The present application relates to the technical field of laser projection and discloses a sound-production screen and a laser projection system. The sound-production screen comprises: a screen body and a frame body. Because through hole...
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WO/2022/149548A1 |
The present invention addresses the problem of providing a piezoelectric film comprising a piezoelectric layer with an electrode layer provided on both surfaces thereof, and a protective layer provided on a surface of each of the electro...
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WO/2022/141827A1 |
Disclosed in the present application is a bone conduction sound transmission device, comprising a laminated structure formed by a vibrating unit and an acoustic transducer unit; and a base structure configured to bear the laminated struc...
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WO/2022/143503A1 |
Disclosed in the embodiments of the present application are a loudspeaker and an electronic apparatus comprising same. The loudspeaker comprises a base, a plurality of piezoelectric patches, a plurality of transmission members and a diap...
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WO/2022/138175A1 |
A backing material for an ultrasonic probe according to the present invention comprises a carbonaceous matrix that has communicating holes distributed in said matrix, and a resin with which the communicating holes are filled.
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WO/2022/140423A2 |
An audio system comprises an array of transparent piezoelectric transducers on a transparent surface. Each transparent piezoelectric transducer includes one or more piezoelectric layers and one or more conductive layers that are substant...
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WO/2022/116288A1 |
The present application provides a piezoelectric microphone, comprising at least one piezoelectric assembly. The piezoelectric assembly comprises a substrate having a back cavity, a diaphragm, and a piezoelectric unit. The diaphragm is f...
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WO/2022/118575A1 |
A transducer (10A) is provided with: a substrate (20) that contains silicon; and a piezoelectric element (30) that is disposed on the substrate (20). The substrate (20) has: a film body (21) having a first surface (21a) and a second surf...
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WO/2022/120229A1 |
A low noise piezoelectric sensor, such as a piezoelectric acoustic transducer, includes a first conductive layer, a second conductive layer, and a piezoelectric layer between the first conductive layer and the second conductive layer. Th...
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WO/2022/116684A1 |
Embodiments of the present application relate to the technical field of screen sound generation. Disclosed are an exciter, a screen assembly, and a terminal. The exciter (11) comprises a vibration transfer assembly (111) and a sound gene...
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WO/2022/118106A1 |
Medical apparatus (20) includes an auscultation pickup unit (26) configured to sense acoustic waves emitted from a body of a subject (24) and to output signals in response thereto. Processing circuitry (40, 42, 44, 50) is configured to c...
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WO/2022/110416A1 |
Provided in the present application is a piezoelectric MEMS microphone, comprising at least one piezoelectric MEMS unit, the piezoelectric MEMS unit comprising a substrate, the substrate comprising an annular peripheral wall enclosing an...
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WO/2022/110358A1 |
Provided are a piezoelectric MEMS microphone and an array thereof. The microphone comprises a base having a back cavity, a support part arranged on the base, and a piezoelectric diaphragm fixed to the support part, wherein the piezoelect...
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WO/2022/110289A1 |
Provided are a piezoelectric microphone and a piezoelectric microphone apparatus. The piezoelectric microphone comprises: a base, which has an accommodating cavity; a cantilever beam, which is fixed to the base, wherein a piezoelectric l...
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WO/2022/110349A1 |
Provided is a piezoelectric microphone. The piezoelectric microphone comprises a base having a back cavity, and a piezoelectric cantilever beam vibrating diaphragm fixed above the base, wherein the piezoelectric cantilever beam vibrating...
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WO/2022/106804A1 |
The present disclosure relates to circuitry for driving a capacitive load. The circuitry comprises pre-processor circuitry configured to process an input signal to generate a processed signal; driver circuitry coupled to the pre-processo...
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WO/2022/099537A1 |
Disclosed in the present invention is a microelectromechanical system (MEMS) ultrasonic transducer-based miniature loudspeaker, comprising: a single or a plurality of MEMS ultrasonic transducers, configured to send an ultrasonic pulse or...
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WO/2022/103189A1 |
According to various embodiments, an electronic device may comprise: a sensor module; a flexible display; a piezoelectric speaker comprising N piezoelectric films attached to the flexible display; and a processor, wherein the processor i...
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WO/2022/104099A1 |
There is disclosed a transducer and a method for generating the transducer. The transducer is formed on a substrate layer. The transducer includes a first electrode layer, a first piezoelectric layer on the first electrode layer, and a s...
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WO/2022/097578A1 |
In the present invention, a plurality of vibration regions (22) are separated by a slit (41) between the vibration regions (22), the slit (41) being formed in a state in which a tapered part (42) is configured so as to have a width that ...
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WO/2022/080618A1 |
The present disclosure relates to a display device comprising a piezoelectric film-type actuator, and having a structure in which a groove is provided on a rear metal layer for supporting and sealing a rear surface of a display panel, an...
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WO/2022/075114A1 |
This laminate structure (10) comprises: a frame body (20) which has a first surface (20a) and a second surface (20b) which face the directions opposite to each other in the thickness direction thereof, and which has a film body (22) supp...
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WO/2022/075168A1 |
An output device according to an embodiment of the present technology comprises one or more display panels, a support member, and an actuator. The one or more display panels are capable of displaying an image. The support member has a su...
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WO/2022/071522A1 |
An ultrasonic wave generator as one example of the present disclosure comprises: an oscillator provided with a piezoelectric substance that, when an AC voltage is applied, vibrates due to piezoelectric effects and generates ultrasonic wa...
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WO/2022/070927A1 |
The present invention is an acoustic matching layer material that comprises a thermosetting resin component and inorganic filler particles, and satisfies the following formula (1) relating to the cross-sectional area of the inorganic fil...
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WO/2022/064953A1 |
The present invention addresses the problem of providing an electroacoustic converter and an image display device which can be rolled up and which do not need a mechanical mechanism or driving source. Said problem is solved by comprising...
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WO/2022/061991A1 |
Provided is a piezoelectric microphone. The piezoelectric microphone comprises a substrate having a back cavity and a piezoelectric vibrating diaphragm arranged on the substrate, and further comprises at least one fixing beam which is co...
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WO/2022/054475A1 |
This active noise control system (500) comprises a structure (80) and a plurality of piezoelectric speakers (10). The plurality of piezoelectric speakers (10) are disposed on a surface (80s) of the structure (80). A radiation surface of ...
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WO/2022/055610A1 |
The acoustic fiber transducer has a piezoelectric domain with Young's modulus, E piezo , and including a non-centrosymmetric crystalline -phase piezoelectric material and inorganic piezoelectric particles. At least one charge collector d...
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WO/2022/053165A1 |
A MEMS component comprises a substrate with a substrate plane, a mass element which has an inoperative position and is designed to execute a deflection out of the inoperative position parallel to the substrate plane and in a fluid which ...
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WO/2022/050130A1 |
The present invention comprises: a substrate (10) having a diaphragm part (11) formed thereon; and a piezoelectric film (20) disposed on the diaphragm part (11). The piezoelectric film (20) is formed of a scandium aluminium nitride, and ...
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WO/2022/050498A1 |
A device for transmitting authentication information is disclosed. The device for transmitting authentication information according to an embodiment of the present invention comprises: a housing in which a predetermined space is formed; ...
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WO/2022/049944A1 |
A first connection part (130a) connects a first tip part (122a) and a second tip part (122b) to each other. The first connection part (130a) is surrounded by: a dividing slit (142) which connects the center (122ac) of the first tip part ...
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WO/2022/044632A1 |
This sensor device comprises a conductive base substrate 11 that serves as a first electrode part kept at a reference potential, a membrane 15 that is provided so as to face the base substrate 11 and serves as a second electrode part tha...
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WO/2022/039596A1 |
A micro-electro mechanical systems, MEMS, -based microphone (1) for detecting sound signals. The MEMS-based microphone (1) comprises a body (2), a resonator (3) and a cavity provided in the body (2), the resonator (3) covering at least a...
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WO/2022/034663A1 |
This electronic device (1) comprises: a touch panel display (2); a loudspeaker (3); and a piezoelectric actuator (4). The loudspeaker (3) outputs a sound based on a first audio signal corresponding to a sound range equal to or higher tha...
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WO/2022/035659A1 |
A flexible thin film transistor tactile sensor includes a piezoelectric semiconductor thin film channel of material whose conductivity can be electrostatically controlled connected with source and drain metals and sandwiched between bott...
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