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WO/2023/007811A1 |
In the present invention, the relation of 0.78 λ≤L≤ 1.19λ or 1.5λ≤ L≤2.14λ is satisfied when TD = 0 and is within the range of 35°≤θ≤55°, and when: TD represents the distance between a connecting section (121), which i...
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WO/2023/286544A1 |
Provided is a highly durable piezoelectric film capable of suppressing deterioration of acoustic characteristics due to a long period of use. A piezoelectric film comprising: a piezoelectric layer made of a polymer composite piezoelectri...
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WO/2023/283784A1 |
A piezoelectric MEMS loudspeaker system (10), comprising: at least one piezoelectric MEMS loudspeaker (1); and at least one transformer (2), the transformer (2) being used for receiving an audio signal input and for driving the piezoelec...
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WO/2023/274148A1 |
Provided in the present application are a piezoelectric loudspeaker and an electronic device. The piezoelectric loudspeaker comprises a first fixing member, a second fixing member, a vibration diaphragm and a vibration source. The second...
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WO/2022/269383A1 |
An apparatus includes an electromagnetic transducer configured to generate first vibrations having a first range of vibrational frequencies and to transmit the first vibrations along a transmission path from the electromagnetic transduce...
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WO/2022/266102A1 |
A microelectromechanical system (MEMS) transducer includes a substrate and a pair of electrodes supported by the substrate. The pair of electrodes are configured as a bias electrode-sense electrode couple. A moveable electrode of the pai...
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WO/2022/265050A1 |
This transducer comprises: a film support part; a vibration film which is connected to the film support part and is displaceable in the film thickness direction; a base material having a counter surface facing the vibration film; and a f...
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WO/2022/264654A1 |
A transducer comprising: a support having a cavity; a vibration film provided opposite the cavity and capable of vibrating in the opposite direction; a piezoelectric element of which at least a part is formed on the vibration film; and a...
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WO/2022/259941A1 |
[Problem] To provide: an ultrasonic transducer that has good sound pressure and stable frequency characteristics, and that has a structure suitable for size and profile reduction; and a non-contact tactile sensation presentation device. ...
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WO/2022/259745A1 |
This transducer includes: a support which has a cavity; a vibration membrane which is provided facing the cavity and which is capable of vibration in the facing direction; and a piezoelectric element at least part of which is formed on t...
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WO/2022/252178A1 |
Disclosed are a fin structure speaker and a method for forming same. The fin structure speaker comprises a surrounding frame and a plurality of speaker fins located in the surrounding frame. Each speaker fin comprises: a fin substrate; a...
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WO/2022/255129A1 |
A transducer 1 is provided with: a substrate 10 having a main surface 11 and a back surface 15 opposite to the main surface 11; a plurality of vibrating films 12 formed by a plurality of recesses 16 formed in the back surface 15 to allow...
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WO/2022/255270A1 |
This microphone device comprises: a plurality of microphone structures (10) each having a microphone that outputs a detection signal based on sound pressure and a case in which the microphone is housed in an inner cavity thereof and a th...
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WO/2022/248768A1 |
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 ...
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WO/2022/232062A1 |
Techniques are described herein that are capable of providing a modularized acoustic probe that includes multiple acoustic transducers that have discrete substrates. A first acoustic transducer is configured to generate an acoustic signa...
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WO/2022/223299A1 |
The invention relates to a joining method for producing a sound transducer system, comprising: providing a piezoelectric material (3) and a plurality of components, each of the components being characterised by a solidus temperature; arr...
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WO/2022/225030A1 |
The ultrasonic receiver comprises resin horn portions (300, 301), a piezoelectric element (10) provided to be exposed at the tip of the resin horn portions (300, 301), a stealth amplifier (200a) that is arranged inside the resin horn por...
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WO/2022/219716A1 |
An ultrasound transducer (1) includes a vibration plate (2) capable of generating a sound wave and a cover part (CP) connected to the vibration plate (2). The vibration plate (2) and the cover part (CP) are monolithically formed using a ...
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WO/2022/220142A1 |
An ultrasonic transducer (1) comprises: a diaphragm (2) that can generate sound waves; and a cover part (CP) that is connected to the diaphragm (2). The diaphragm (2) and the cover part (CP) are formed integrally with MEMS. The cover sec...
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WO/2022/219717A1 |
An ultrasound transducer (100) includes a vibration plate (2) and a housing (1). The vibration plate (2) is capable of vibrating. The housing (1) is connected to the vibration plate (2). The vibration plate (2) has an opening (OP). The h...
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WO/2022/215208A1 |
The present invention provides an ultrasonic probe including a transducer array in which multiple transducers for transmitting and receiving ultrasound are arranged such that the longitudinal directions thereof are parallel to each other...
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WO/2022/215524A1 |
The preset invention provides a piezoelectric film which has high piezoelectric performance. This piezoelectric film comprises: a piezoelectric layer that is composed of a polymer composite piezoelectric body which contains piezoelectric...
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WO/2022/210851A1 |
The present disclosure provides a novel ultrasonic probe head that can be used for both linear and convex type probes. An acoustic wave probe head (100) of the present disclosure is a flexible ultrasonic probe head (100) comprising at ...
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WO/2022/207384A1 |
The invention relates to a MEMS sound transducer (10, 10', 10'', 10''') having the following features: - at least one actuator (16, 16a-16d, 16a''-16d'', 16a'''-16d'''); - an emitting structure (14, 14', 14a-14d, 14'', 14'''), which is c...
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WO/2022/209225A1 |
The present technology relates to a display device, an output method, and a display module that make it possible to create a sense of unity between image and sound. A display device according to the present technology comprises: a displa...
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WO/2022/210887A1 |
The present disclosure provides a novel ultrasonic probe head that is capable of achieving probes of not only a linear type and a convex type but also of a variety of other configurations. An ultrasonic probe head 100 according to the pr...
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WO/2022/209854A1 |
Provided is a highly durable piezoelectric film in which decreases in sound pressure can be suppressed even after repeated bending and stretching. The present invention comprises a piezoelectric body layer composed of a polymer composite...
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WO/2022/210092A1 |
Provided is a durable piezoelectric film that can limit reduction in sound pressure even after a long time of use or after repeated use. The piezoelectric film comprises a piezoelectric material layer comprising a polymer composite piezo...
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WO/2022/208214A1 |
An apparatus includes a bobbin, at least one counterweight assembly, and at least one spring. The bobbin includes at least one core and at least one electrically conductive coil wound around at least a portion of the bobbin. The at least...
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WO/2022/208042A1 |
Circuitry for estimating a displacement of a piezoelectric transducer in response to a drive signal applied to the piezoelectric transducer, the circuitry comprising: monitoring circuitry configured to be coupled to the piezoelectric tra...
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WO/2022/209772A1 |
The present invention provides an ultrasonic probe adaptive to high-frequency driving, a method for manufacturing the ultrasonic probe, and an ultrasonic diagnosis device. An ultrasonic probe (100) is provided with an acoustic matching...
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WO/2022/202195A1 |
Provided is a piezoelectric film having high piezoelectric performance. The piezoelectric film comprises: a piezoelectric layer comprising a polymer composite piezoelectric material containing piezoelectric particles in a matrix that com...
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WO/2022/202034A1 |
An ultrasonic probe 1 in which a plurality of piezoelectric elements (3) are arrayed on a backing material along an array direction. The ultrasonic probe (1) comprises a plurality of acoustic matching layers (4, 5, 6, 7) stacked on respe...
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WO/2022/202682A1 |
Provided is a piezoelectric film which can suppress a drop in sound pressure even if used repeatedly or for a long time. The present invention comprises: a piezoelectric layer comprising a polymer composite piezoelectric material contain...
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WO/2022/202726A1 |
A sensor element comprising: a support (10) having a recess portion (10a) formed therein; and a sensing portion (30) disposed on the support (10) and having a floating region (21b) configured by the recess portion (10a). The sensing port...
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WO/2022/201999A1 |
This ultrasonic sensor (1) comprises a vibration conversion unit (6) and a support unit (5). The vibration conversion unit is constructed to be in contact with an acoustic matching unit (3) that is secured to the inner surface (V5) of an...
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WO/2022/204629A1 |
Some disclosed devices may include a display stack, a cover layer proximate a first side of the display stack and a segmented transducer array proximate a second side of the display stack. The segmented transducer array may include a plu...
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WO/2022/196202A1 |
Provided is a piezoelectric element comprising a laminate of a plurality of piezoelectric films, the piezoelectric element preventing generation of wrinkles. The piezoelectric element has a configuration in which a plurality of layers of...
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WO/2022/196078A1 |
This ultrasonic sensor comprises: a case (1) having a cylindrical side wall (3) and a base panel (2) positioned at one end of the side wall (3); and a piezoelectric element positioned on the bottom panel (2) in the interior of the case (...
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WO/2022/196353A1 |
The present invention addresses the problem of providing an electroacoustic converter in which an acoustic film is affixed to a rollable panel, the electroacoustic converter making it possible to prevent the panel from being scratched by...
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WO/2022/194880A1 |
Embodiments of the present disclosure describe MEMS sound transducers for generating sound, comprising an actuator which is separated from a surrounding structure by one or more gaps and is designed to perform a relative movement between...
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WO/2022/190459A1 |
A piezoelectric sound generation component 1 is provided with a piezoelectric vibrating plate 2 and a case 5 housing the piezoelectric vibrating plate 2. A periphery portion 15 of the vibrating plate 10 includes a first periphery portion...
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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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