Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 251 - 300 out of 20,095

Document Document Title
WO/2016/210360A1
Methods and apparatus for verifying a transducer are provided. In preferred embodiments, the flow of current on a wire that provides power to both a micro-processor and a transducer is reversed. A wireless communication chip listens for ...  
WO/2016/204295A1
Provided is an ultrasonic wave detecting device that allows exchange of a piezoelectric vibrator, including: a cylindrical rigid wall fixed to a rear surface of a vehicle fender; a lid that is detachably attached to the cylindrical rigid...  
WO/2016/204045A1
Provided is an earphone (1) which is provided with, a first vibrating plate (31) which is caused to vibrate by means of a first piezoelectric element (32), and a cylindrically shaped casing (2) which transmits the vibrations of the first...  
WO/2016/197536A1
Disclosed is a piezoelectric loudspeaker. The piezoelectric loudspeaker comprises: a conductive terminal, a framework, a vibrating diaphragm fixed by the framework and a piezoelectric sheet fixed to the vibrating diaphragm. Moreover, the...  
WO/2016/199875A1
The present invention provides a speaker that excels in frequency response in a high sound range and that can be produced stably, and an earphone in which the speaker is used. Provided are: a speaker 1 provided with a woofer 2 supported ...  
WO/2016/194857A1
A speaker comprising a metal plate and a piezoelectric element bonded together is provided which has a low distortion factor of outputted sound. This speaker is characterized in that, defining the longitudinal elastic modulus E of the me...  
WO/2016/194683A1
Provided is a speaker (1) which supports an n-bit digital signal and is provided with an acoustic pressure generating unit (10) in which 2i-1 piezoelectric elements relating to an i-th bit, a total of (2n-1) piezoelectric elements (51, 5...  
WO/2016/194425A1
[Problem] To provide a piezoelectric sounder capable of improving sound pressure without decreasing resonance frequency and an electroacoustic conversion device provided therewith. [Solution] A piezoelectric sounder 30 according to an em...  
WO/2016/194858A1
A speaker which drives a dynamic speaker and a piezoelectric speaker with one amplifier is provided which has an excellent frequency characteristic. This speaker 3 is provided with a dynamic speaker 2, a piezoelectric speaker 3, and one ...  
WO/2016/189812A1
The disclosed ultrasonic device is equipped with a cylindrical, floor-equipped case, a piezoelectric element, a lead wire, and a filler material. The piezoelectric element is provided on the inner floor surface of the case. The lead wire...  
WO/2016/190101A1
The ultrasonic probe according to the present invention is provided with an acoustic matching layer that adjusts the acoustic impedance of sound waves and forms a tube wherein both edges of a sheet member are bonded to one another with a...  
WO/2016/189858A1
This ultrasonic device is equipped with a cylindrical, floor-equipped case, a piezoelectric element, a lead wire, and a filler material. The distance from a first thin wall section to a second thin wall section is an opening length B. Th...  
WO/2016/191256A1
A portable audio input/output device may include one or more openings that extend through a cover of the device and allow acoustic signals outside a housing of the device to reach a microphone disposed within the housing. The opening(s) ...  
WO/2016/186114A1
Provided is a digital speaker (1) equipped with one piezoelectric element (4) having n-number of electrodes (51, 52, 53) that are spaced apart. Sound pressure is adjusted according to the area of the electrodes (51, 52, 53), and all of t...  
WO/2016/184604A1
The present invention relates to an acoustic sensor (1) comprising an electroacoustic transducer and an electrical conductor (4). The electroacoustic transducer comprises a plate-shaped transducer element (2) which is configured to emit ...  
WO/2016/184061A1
Disclosed are a sound generating apparatus, an electronic device and a manufacturing method therefor.The sound generating apparatus comprises a sound generator, a piezoelectric buzzer and a front cover, wherein the front cover is attache...  
WO/2016/187478A1
Systems and techniques are provided for transducer array subdicing. A laminate material may include two laminate material flexures which each have a flexure boundary defined by a gap in the piece of laminate material. A trench may be loc...  
WO/2016/187481A1
Systems and techniques are provided for membrane bonding. A photoresist may be applied to an ultrasonic device. A portion of the photoresist may be removed. A bonding agent may be applied a portion of the photoresist that is not removed....  
WO/2016/182678A1
The privacy-preserving energy-efficient speaker implementations described herein improve user privacy while a user is listening to audio and can reduce the energy necessary to output the audio. This can be done by using parametric speake...  
WO/2016/180820A1
The present invention relates to a sound converter arrangement (1) having a first MEMS sound converter (21) for generating and/or detecting soundwaves in the audible wavelength spectrum which comprises a first cavity (41) and an ASIC (11...  
WO/2016/181965A1
Provided are a high-production-rate electroacoustic conversion film web, electroacoustic conversion film, and method for manufacturing the same in which the work hours can be reduced and the cost lowered without damaging a thin-film elec...  
WO/2016/182035A1
The present invention provides a compact speaker unit having high sound quality. This speaker unit 1 is configured to include a vibration element 20 having at least one opening 20a, a vibration device 30 for coming into contact with the ...  
WO/2016/175327A1
Provided is an ultrasonic sensor which is installed on the rear surface of a bumper of an automobile (a surface facing the front surface of the body of the automobile) and is thus particularly useful for detecting the position of a perso...  
WO/2016/175050A1
The ultrasonic transducer according to the present invention is provided with: a plurality of piezoelectric elements for emitting an ultrasonic wave in response to the input of an electric signal, and converting an ultrasonic wave incide...  
WO/2016/174709A1
This ultrasonic transducer production method includes: a sequence determination step (S2) for determining the sequence of a plurality of piezoelectric elements in a laminate on the basis of the mechanical quality factor of each piezoelec...  
WO/2016/172866A1
A piezoelectric speaker and a method for forming the piezoelectric speaker are provided. The method includes: providing a piezoelectric actuator (100) which comprises a piezoelectric layer (111), a bottom electrode (122) and a top electr...  
WO/2016/170961A1
The ultrasonic transducer according to the present invention is provided with: a plurality of piezoelectric elements; a substrate for inputting/outputting electric signals to/from the piezoelectric elements; a plurality of signal input/o...  
WO/2016/169256A1
Disclosed is a speaker device, comprising a vibration system, a magnetic circuit system, and an auxiliary system fixedly accommodating the magnetic circuit system and the vibration system. The vibration system comprises a centering suppo...  
WO/2016/171003A1
An ultrasonic sensor (100) is provided with: a bottomed cylindrical case (60), which includes a bottom section (62) and a cylindrical section (61), and is formed of a conductive member; and a piezoelectric element (50) bonded to an inner...  
WO/2016/168620A1
Methods and systems of wide-angle ultrasound transducers that receive or transmit over a wide angular range are disclosed. In one embodiment, the transducer includes an aperture that includes multiple piezoelectric segments sequentially ...  
WO/2016/167003A1
Provided is an ultrasonic sensor whereby reverberant vibration can be suppressed by a simpler circuit configuration than in the prior art. The ultrasonic sensor (100) is provided with a flat plate-shaped piezoelectric body (50) that incl...  
WO/2016/165320A1
Disclosed is a piezoelectric speaker, comprising electrically-conductive terminals, a frame, a diaphragm fixed to the frame, and a piezoelectric sheet fixed to the diaphragm, also: an antenna circuit is provided on the surface of the pie...  
WO/2016/158762A1
A piezoelectric element (50) is formed by laminating a plurality of piezoelectric body layers and is provided with a laminate having a top surface (41), serving as a first principal surface, and a bottom surface (46), serving as a second...  
WO/2016/155321A1
Disclosed in the present invention is a composite structure of a piezoelectric receiver and an ultrasonic wave generator, comprising: a piezoelectric chip, an ultrasonic signal generator, an audio signal input circuit and a switching cir...  
WO/2016/158518A1
The present invention provides a nondirectional electroacoustic transducer with a small parts count, with which it is possible to reproduce with high sound quality and sufficient sound volume in a wide frequency band. An electroacoustic ...  
WO/2016/154397A1
A piezoelectric two-dimensional mode resonator suited for high frequency filtering applications, with the ability to simultaneously excite lateral and vertical acoustic waves.  
WO/2016/151832A1
Provided are a laminated structure and an apparatus for manufacturing the laminated structure, with which it is possible to readily decrease the thickness and increase the area of a substrate layer and with which it is possible to reliab...  
WO/2016/147917A1
An ultrasonic sensor (103) is provided with a closed-end cylindrical case (1), a piezoelectric element (2i) joined to an inner bottom surface (11a) of the case (1), and a conducting member connected thereto. The piezoelectric element (2i...  
WO/2016/147250A1
[Problem] To provide an ultrasonic transducer and an ultrasonic medial apparatus in which the efficiency of vibration transmission for equalizing thermal stresses developing at four corners of a rectangular piezoelectric element and redu...  
WO/2016/143469A1
Provided are a polymer composite piezoelectric body having an elevated electroacoustic conversion efficiency and an improved sound pressure level, an electroacoustic conversion film and an electroacoustic converter. The polymer composite...  
WO/2016/144861A1
The present invention provides for systems and methods for acquiring acoustic information from a resonating body. Specifically, a focused light beam is emitted from an emitter module onto an impedance matching reflector. The impedance ma...  
WO/2016/136365A1
An ultrasound probe is provided which maintains sufficient adhesion strength of the layers that configure the ultrasound probe and which matches the acoustic impedance of a piezoelectric element to that of the organism; also provided is ...  
WO/2016/136522A1
Provided are highly reliable structure body and electro-acoustic converter wherein a piezoelectric body layer in a piezoelectric film is thin, and capable of preventing a local short-circuit from occurring even when a voltage is applied ...  
WO/2016/137200A1
The present invention provides a sound output device comprising a housing having a receiving space arranged therein, a first sound output unit arranged in the housing, and a second sound output unit arranged and spaced apart from the fir...  
WO/2016/137022A1
Disclosed are an ultrasonic transducer having an active element or a thick metal layer of a matching layer, and a method for manufacturing same. The ultrasonic transducer, according to one embodiment of the present invention, comprises: ...  
WO/2016/136327A1
A resonance layer (30) and an acoustic separation layer (34) are arranged adjacent to each other between a piezoelectric element (24) and a circuit board (16) provided with an electronic circuit for driving the piezoelectric element. The...  
WO/2016/136591A1
The present invention provides an electroacoustic transducer and an electroacoustic conversion system with which it is possible to stably reproduce a high-quality sound and expand a reproducible-frequency bandwidth. An electroacoustic tr...  
WO/2016/137023A1
Disclosed are an ultrasonic transducer having a matching layer having a composite structure, and a method for manufacturing same. The ultrasonic transducer, according to one embodiment of the present invention, comprises: an active eleme...  
WO/2016/136475A1
Provided is an indium nitride piezoelectric thin film which has excellent piezoelectric characteristics. An indium nitride piezoelectric thin film which contains samarium or lanthanum.  
WO/2016/133016A1
This ultrasonic sensor is provided with a case, and a laminated piezoelectric element (50). On the bonding surface side of the piezoelectric element, a grounding electrode (30), and a non-grounding electrode (20) are positioned, said non...  

Matches 251 - 300 out of 20,095