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Patent Searching and Data


Matches 1 - 50 out of 20,133

Document Document Title
WO/2020/017511A1
An ultrasonic sensor according to the present disclosure is provided with: a cylindrical case; an acoustic matching part inserted in an opening on an end side of the case; and a piezoelectric element adhered to the inner surface of the a...  
WO/2020/017478A1
[Problem] To provide a porous piezoelectric material molded body which has high utility as a constituent member of a piezoelectric vibrator suitable for, in particular, a probe for an ultrasound medical diagnostic device. [Solution] A po...  
WO/2020/004097A1
This ultrasonic sensor comprises: a metal member (4) having a plate part (4a); a piezoelectric element (2) joined to a first surface (4b) on one side of the plate part (4a); a first acoustic matching layer (5) adhered to a second surface...  
WO/2020/002900A1
A system includes a panel extending in a plane, an actuator attached to a surface of the panel, and an electronic control module to activate the actuator to cause vibration of the panel. The actuator includes: a plate to create a force t...  
WO/2020/002804A1
The invention relates to a motor vehicle windscreen comprising two transparent substrates (2, 3) that are connected together by an insert (4) made of viscoelastic material, at least one of the substrates (2, 3) comprising, on its surface...  
WO/2019/235674A1
The present invention relates to a speaker driver and a method for operating same, the speaker driver comprising: an amplifier unit which outputs a pulse voltage amplifying an input signal on the basis of a supply voltage in order to dri...  
WO/2019/234437A1
A signal processing device (1) includes a first medium (2), a second medium (3) and a lipid interface (4) arranged between the first medium and the second medium. The lipid interface includes multiple lipid molecules (5). An input transd...  
WO/2019/234969A1
Provided is an acoustic matching device with which it is possible to obtain a broadband acoustic matching characteristic between a wide range of different types of materials having various specific acoustic impedances. An acoustic matchi...  
WO/2019/234854A1
An ultrasonic transducer according to the present invention is provided with: an elastic plate which includes a first surface and a second surface respectively facing one side and the other side of the elastic plate in a thickness direct...  
WO/2019/211599A1
Disclosed is a piezoelectric transducer which is mounted to a target in use, comprising: a piezoelectric element having a front face which faces the target, and an opposing rear face which faces away from the target, wherein the piezoele...  
WO/2019/208118A1
This backing material for ultrasonic probes substantially comprises porous amorphous carbon.  
WO/2019/197149A1
The invention relates to a sound transducer for sending and/or receiving underwater sound signals, wherein the sound transducer comprises at least two sound transducer shells, each comprising a piezoceramic material and each being electr...  
WO/2019/197268A1
The invention relates to a sound transducer (10d), which comprises a diaphragm cup (20), a transducer element and a housing (40). The diaphragm cup (20) has a diaphragm (5) and a wall. The diaphragm (5), the wall of the diaphragm cup (20...  
WO/2019/186324A1
A Piezo crystal 100 for an ultrasonic transducer is disclosed. The Piezo crystal 100 generates multiple resonant frequencies spanning over defined sonic and ultrasound ranges. The Piezo crystal 100 comprises a metal substrate disc 102 co...  
WO/2019/186304A1
A method for generating an energy wavefront is disclosed. The method includes receiving, at a transducer device, a combined ultrasonic and sonic waveform signal; creating a combined ultrasonic and sonic wave based on the combined ultraso...  
WO/2019/186321A1
A wave shaping and scattering unit for an ultrasonic transducer to effectively shape and scatter an incoming wavefront is disclosed. The wave shaping and scattering unit comprises a wave slicer grill 100 to shape the incoming wavefront i...  
WO/2019/187547A1
The present invention is an audio device that has an acoustic sheet which is a thin film material having capacitive characteristics and which has a curved shape. The acoustic sheet has a first region that is actively driven by an input s...  
WO/2019/186305A1
A transducer assembly for generating a multi-directional energy wavefront is disclosed, comprising: a transducer device configured to convert a combined ultrasonic and sonic waveform signal into a combined ultrasonic and sonic wave; a fi...  
WO/2019/188426A1
Provided is a resin material suitable as an acoustic wave probe lens material in which an acoustic impedance close to that of a living body can be achieved, acoustic wave attenuation can be reduced even at high frequencies (e.g., 10 MHz)...  
WO/2019/174482A1
The present invention provides a backlight module and a manufacturing method therefor, and a display device. The backlight module comprises: a light guide plate having a first surface and a second surface that are opposite to each other;...  
WO/2019/176233A1
According to the present invention, a second laminate comprises a flexible wiring sheet and a laminated element array supported thereby. A ground film is bonded to a living body side of the laminated element array, thereby forming a stru...  
WO/2019/171030A1
A method includes determining, for a piezoelectric cantilever-type transducer of a distributed mode loudspeaker adapted to cause vibration of a load, a subset of frequencies from a range of frequencies at which to output vibrations, in w...  
WO/2019/132727A3
An electroacoustic transducer for the parametric generation of ultrasound comprises two electrical oscillation generators, the outputs of which are connected via a linear adder, a pulse modulator controlled by a pulse generator, a power ...  
WO/2019/164315A1
An electronic device and method are disclosed. The electronic device includes a first and second housing movable relative to each other. The second housing supports a flexible display which may be at least partially exposed to an exterio...  
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 ...  

Matches 1 - 50 out of 20,133