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Matches 1 - 50 out of 19,987

Document Document Title
WO/2019/149418A1
The invention relates to an ultrasonic transducer with a piezoceramic and a method for producing an ultrasonic transducer of this kind. The invention is directed at providing an ultrasonic transducer with outstanding media resistance and...  
WO/2019/150953A1
This ultrasonic probe: holds a transmitting transducer at an angle at which a longitudinal wave transmitted from the transmitting transducer enters an object under inspection as a transverse wave, and at which a creeping wave which propa...  
WO/2019/144370A1
A MEMS piezoelectric speaker and a preparation method therefor. The MEMS piezoelectric speaker comprises: a substrate (10), the central region thereof being a hollow region; an organic vibration film layer (50), located above the hollow ...  
WO/2019/126477A3
A hydrophone may include a first piezoelectric cable including alternating sections of positive polarity and negative polarity, and a second piezoelectric cable including alternating sections of negative polarity and positive polarity. A...  
WO/2019/144369A1
An MEMS piezoelectric loudspeaker with a soft support structure and a preparation method therefor. The MEMS piezoelectric loudspeaker comprises: a substrate (10), wherein a central region is a hollow region; a composite dielectric film l...  
WO/2019/141378A1
An apparatus includes a first support member, a second support member and one or more electro-active polymer members between the first support member and the second support. The one or more electro-active polymer members include a first ...  
WO/2019/142547A1
The purpose of the present invention is to provide: an acoustic lens which is for propagating a sound wave having a wavelength λ of 100 μm or less and can exhibit excellent acoustic characteristics depending on the wavelength λ of the...  
WO/2019/142568A1
This ultrasonic probe 10 is provided with: an ultrasonic wave transmission/reception unit 11 which transmits and receives an ultrasonic wave; and an acoustic lens 12 which radiates an ultrasonic wave that is emitted from the ultrasonic w...  
WO/2019/134044A1
There is provided a microphone and microphone system, and additionally to methods for capturing and processing sound that can be adapted to provide a small directional microphone. The following provides a single microphone solution that ...  
WO/2019/136032A1
This disclosure provides methods, systems, and apparatuses, for a microphone circuit. In particular, the circuit includes transducer that can sense pressure changes and generate an electrical signal having frequency components in a first...  
WO/2019/130019A1
A system includes a flat panel display having a panel resonant frequency response corresponding to a composition, shape, and structure of the flat panel display; and an actuator having an actuator resonant frequency response correspondin...  
WO/2019/133646A1
A micro-electromechanical system (MEMS) transducer assembly includes a transducer including a condenser microphone, an integrated circuit electrically connected to the transducer to receive an output voltage from the transducer, wherein ...  
WO/2019/132727A2
The invention relates to the field of acoustic and hydroacoustic measurement, and more particularly to electroacoustic measuring transducers for use as acoustic transmitters in hydroacoustic tanks. The technical result is an increase in ...  
WO/2019/131135A1
According to the present disclosure, a piezoelectric element the resonance point of which is shifted to the low-pitched sound side is provided. The inventors newly found that the resonant point of a piezoelectric element 1 is moved to th...  
WO/2019/132368A1
A piezoelectric element for a speaker and a manufacturing method therefor are provided. The piezoelectric element for a speaker comprises: a plurality of piezoelectric ceramic layers stacked in the thickness direction thereof; and a plur...  
WO/2019/122886A1
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for changing a distributed mode loudspeaker's fundamental frequency. One of the systems includes a distributed mode loudspeaker comprising an...  
WO/2019/123610A1
[Problem] To provide: an ultrasonic vibrator that is compact and capable of implementing low-frequency ultrasonic vibration and that is configured to apply ultrasonic vibration to liquid; and a low-frequency spot shower type or cleaning ...  
WO/2019/122892A1
Methods, systems, and apparatus for using a two-dimensional distributed mode actuator. One of the systems includes a transducer adapted to create a force to cause vibration of a load to generate sound waves, the transducer having a first...  
WO/2019/116038A1
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for selecting distributed mode loudspeaker electrodes using an output frequency. One of the methods includes determining, for a piezoelectric...  
WO/2019/118921A1
An acoustophoretic system is controlled and driven to attain a desired level of performance. An RF controller and a driver provide a frequency and power to an acoustic transducer, which can be implemented as a piezoelectric element, whic...  
WO/2019/114162A1
Disclosed are a mobile terminal and a control method therefor, and a storage medium, wherein same belong to the field of electronic technology application. The mobile terminal comprises: a housing, a control assembly, and a piezoelectric...  
WO/2019/111775A1
A display panel according to an embodiment of the present invention is provided with: a flexible organic electroluminescent panel; and one or more piezoelectric films that are provided to the backside of the organic electroluminescent pa...  
WO/2019/107890A1
An electronic device according to one embodiment of the present disclosure comprises: a transparent member; a display panel arranged below the transparent member; an ultrasonic sensor, arranged below the display panel, for acquiring biom...  
WO/2019/071050A3
A metallic diaphragm disk (22, 266, 266', 266'') incorporating a piezoelectric material (24, 24', 24.1, 24.2, 24', 24'') bonded thereto and operatively coupled to a base rim (14, 62, 262) of a housing (18, 18', 66, 256) provides for clos...  
WO/2019/107172A1
According to the present invention, a shield part (7), which electromagnetically shields at least a portion of an electric circuit (6), is configured to electromagnetically shield the at least a portion of the electric circuit by allowin...  
WO/2019/102755A1
This ultrasonic sensor (1) comprises a sensor body (2), cushion member (5), retainer part (6), and water discharge passage (67). The sensor body comprises an ultrasonic microphone (3) and a microphone support part (4) for supporting the ...  
WO/2019/103017A1
This active noise control system (500) is provided with at least one noise cancelling speaker for emitting sound waves for cancelling sound. At least one noise cancelling speaker includes a piezoelectric speaker (10). The piezoelectric s...  
WO/2019/103015A1
This laminate body (10) for forming a piezoelectric speaker is provided with a piezoelectric film (35), an adhesive surface (17), an intervening layer (40) which is a porous layer and/or a resin layer arranged between the piezoelectric f...  
WO/2019/103018A1
This piezoelectric speaker (10) is provided with a piezoelectric film (35), a first bonding layer (51) and an intervening layer (40). The piezoelectric film (35) includes a first electrode (61), a second electrode (62) and a piezoelectri...  
WO/2019/103016A1
This piezoelectric speaker (10) is provided with a piezoelectric film (35), a fixing surface (17) for fixing the piezoelectric film (35) to a support body, and an intervening layer (40) arranged between the piezoelectric film (35) and th...  
WO/2019/098861A1
A cylindrical piezoelectric transducer is described the cylindrical piezoelectric transducer comprising: a tube having inner and outer surfaces and a first inner diameter, first outer diameter and a first thickness; at least one stepped ...  
WO/2019/094515A1
A sound processing method and an interactive device are provided. The method includes determining a sound source position of a sound object relative to an interactive device based on a real-time image of the sound object; and performing ...  
WO/2019/087922A1
A piezoelectric element comprises a piezoelectric body having a first main surface and a second main surface opposite of each other, and multiple external electrodes arranged on the first main surface. A vibration member has a third main...  
WO/2019/088145A1
A resin composition for acoustic matching layers, which contains metal particles and a binder that contains a resin, and wherein the degree of monodispersity of the metal particles as calculated by formula (1) is 40-80%; an acoustic matc...  
WO/2019/089873A2  
WO/2019/087634A1
An ultrasonic sensor is provided with a housing (1), and a piezoelectric vibration element (7). The housing (1) includes a first part (5) formed of a metal, and a second part (6) formed of a resin. The first part (5) has a cylindrical sh...  
WO/2019/087603A1
This acoustic lens includes an elastomer substrate and a filler which is dispersed in the elastomer substrate and has an average maximum length of 5 to 100 μm and an average maximum diameter of 0.01 to 1 μm.  
WO/2019/088147A1
Provided is a resin composition for an acoustic matching layer and containing an epoxy resin (A), a specific polyamine compound (B), and metal particles (C), wherein the epoxy resin (A) includes at least one type of epoxy resin from amon...  
WO/2019/088090A1
The present invention increases the acoustic pressure of sound obtained from a transducer or the amplitude of an electrical signal obtained from a transducer. In an earphone 101, a casing 1 which is a hollow cylindrical member is connect...  
WO/2019/087923A1
A wiring member electrically connected to a piezoelectric element has a first region, a second region and a third region. The first region is positioned on multiple external electrodes and is bonded to the multiple external electrodes. T...  
WO/2019/087966A1
This ultrasonic sensor (1) is provided with: a first electrode (2;201) provided in an ultrasonic microphone (1a) comprising a vibration element (3) having a function for performing conversion between mechanical vibrations and an electric...  
WO/2019/087967A1
A negative electrode line (5f) having a negative electrode terminal (2c) connected thereto is isolated from shield parts (3, 3d, 11), and the shield parts (3, 3d, 11) are connected to a ground potential point without being connected to t...  
WO/2019/088146A1
A resin composition for acoustic matching layers, a cured product using same, an acoustic matching sheet, an acoustic wave probe, an acoustic wave measurement device, and a production method for acoustic wave probes, said resin compositi...  
WO/2019/088148A1
Provided is a resin composition for an acoustic matching layer, said composition containing: a binding material that includes a resin; and surface-treated metal particles. Also provided, by using said composition, are a hardened product,...  
WO/2019/081220A1
The invention relates to a MEMS sound transducer (1), in particular for generating and/or detecting sound waves in the audible wavelength spectrum, comprising: a substrate (2); a diaphragm (3) that is connected to the substrate (2) and c...  
WO/2019/082891A1
An ultrasonic oscillator is provided with: a cylinder member constituted using an insulating material; an oscillator cable fixed on an end side of the cylinder member and close to the outer periphery thereof; a plurality of piezoelectric...  
WO/2019/078053A1
Provided are a piezoelectric device which, even though a plurality of piezoelectric layers having the same piezoelectric characteristics are stacked and the opposed surfaces of adjacent piezoelectric layers are not electrically insulated...  
WO/2019/071050A2
A metallic diaphragm disk (22, 266, 266', 266'') incorporating a piezoelectric material (24, 24', 24.1, 24.2, 24', 24'') bonded thereto and operatively coupled to a base rim (14, 62, 262) of a housing (18, 18', 66, 256) provides for clos...  
WO/2019/065182A1
A fixed frame (2) is fixed to an external member. An ultrasonic oscillation unit (3) is constituted by a first substrate arranged inside the fixed frame (2) and having flexibility and a first piezoelectric element formed on the first sub...  
WO/2019/067016A1
In general, the subject matter described in this disclosure can be embodied in methods, systems, and program products for analyzing, by a computing system, one or more signals transmitted to an audio transducer. The computing system dete...  

Matches 1 - 50 out of 19,987