Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 17 - Piezo-electric transducers; Electrostrictive transducers
Patents for H04R 17 - Piezo-electric transducers; Electrostrictive transducers (7,213)
12/2012
12/06/2012WO2012164890A1 Ultrasonic transmitter/receiver, method for manufacturing same, and ultrasonic flowmeter
12/06/2012WO2012164879A1 Ultrasonic transducer and ultrasonic flow-meter
12/06/2012US20120308055 Smart Material Actuator Capable of Operating in Three Dimensions
12/06/2012US20120308041 Circuit assembly for processing an electrical signal of a microphone
12/05/2012EP2530953A1 Ultrasonic vibration device
12/05/2012CN202587366U Intermediate fixing support type frequency-halving piezoelectric bone conduction auditory device
12/04/2012US8325954 Processing an input signal in a hearing aid
12/04/2012US8324787 Array of electroacoustic transducers and electronic probe for diagnostic images with high focusing depth
11/2012
11/29/2012US20120300956 Sound outputting device
11/29/2012US20120300593 Receiver transducer for wireless power transfer
11/29/2012US20120300592 Sender transducer for wireless power transfer
11/29/2012DE102012009917A1 Warning speaker for use in television set, personal computer of different technologies or motor vehicle for outputting warning tone, has speaker unit for outputting warning tone with fixed frequency band, where speaker unit has diaphragm
11/29/2012DE102011076430A1 Schallwellenbasierter Sensor Sound wave-based sensor
11/29/2012DE102009021680B4 Verfahren zur Herstellung einer Anpassungsschicht für Ultraschallwandler A process for producing an adaptation layer for the ultrasonic transducers
11/28/2012CN202565460U Bone conduction microphone
11/28/2012CN102045627B Radio device and electronic device using same
11/28/2012CN101960869B Acoustic matching body, ultrasonic transceiver and ultrasonic flowmeter
11/28/2012CN101931850B Micro-speaker and manufacturing method thereof
11/28/2012CN101253804B Speaker, image element protective screen, case of terminal, and terminal
11/28/2012CN101027937B Piezoelectric sound producing unit
11/27/2012US8319400 Ultrasonic surgical instruments
11/27/2012US8316519 Method of manufacturing a piezoelectric element
11/27/2012US8316518 Methods for manufacturing ultrasound transducers and other components
11/22/2012WO2012157769A1 Ultrasound transducer, ultrasound probe, and ultrasound transducer manufacturing method
11/22/2012WO2012157691A1 Planar speaker and av device
11/22/2012US20120294119 Device for detecting acoustic waves and a system for locating a source of acoustic waves
11/22/2012DE10123612B9 Ultraschallwellensender/empfänger Ultrasonic wave transmitter / receiver
11/21/2012CN202551341U Internal and external conduction combined dual-frequency type piezoelectric bone hearing-assisting conduction device
11/21/2012CN202551340U Plastic piezoelectric ceramic speaker
11/21/2012CN102792714A Piezoelectric excitor
11/21/2012CN102075836B Single-diaphragm piezoelectric ceramic loudspeaker
11/21/2012CN101895807B Flat panel loudspeaker
11/20/2012US8315418 Sound receiver
11/20/2012US8313177 Actuator, liquid droplet ejecting head, and manufacturing method thereof, and liquid droplet ejecting apparatus
11/14/2012EP2522152A1 Sound wave detection device and sound wave source location system
11/14/2012EP2521897A2 Ultrasonic flow meter and transducer assembly with isolated transformer capsule
11/14/2012CN202535522U Piezoelectric ceramic loudspeaker with non-metallic diaphragm
11/14/2012CN101578890B Microphone array with electromagnetic interference shielding means
11/13/2012US8311246 Microphone
11/13/2012US8310133 High frequency piezocomposite with triangular cross-sectional shaped pillars
11/13/2012US8307521 Method for manufacturing acceleration sensing unit
11/08/2012DE102008054533B4 Ultraschallsensor Ultrasonic sensor
11/07/2012EP2520101A2 Low-profile ultrasound transducer
11/07/2012CN202524556U Internal and external support combined double-frequency type piezoelectric bone conduction hearing device
11/06/2012DE202004021918U1 Frequenzselektive Sendesignalgewichtung fürMehrfachantennen-Kommunikationssysteme Frequency selective transmission signal weighting fürMehrfachantennen communication systems
11/01/2012US20120274178 Composite piezoelectric body, method for producing said composite piezoelectric body, and composite piezoelectric element using said composite piezoelectric body
10/2012
10/31/2012EP2519031A1 Electroacoustic transducer, electronic device, method for converting electronic sound, and method for outputting acoustic wave from electronic device
10/31/2012CN102761812A Piezoelectric squealer structure for improving sound pressure value
10/31/2012CN101347042B Acoustic matching material, ultrasonic vibrator, and ultrasonic flowmeter
10/26/2012WO2012144226A1 Ultrasound probe and production method therefor
10/26/2012WO2012144117A1 Ultrasonic probe and ultrasonic diagnostic device
10/25/2012US20120269366 Ribbon microphone
10/24/2012EP1972015B1 Monolithic bending element
10/23/2012US8292818 Acoustic lens composition, ultrasonic probe, and ultrasonic diagnostic apparatus
10/23/2012US8291559 Process for adapting resonance frequency of a BAW resonator
10/23/2012US8291558 Piezoelectric/electrostriction element manufacturing method
10/18/2012DE112009003590T5 Ultraschallwandler Ultrasonic transducer
10/17/2012CN202496055U Piezoelectric ceramic plate and piezoelectric ceramic loudspeaker prepared by using the same
10/17/2012CN102740200A Micromechanical sound transducer having a membrane support with tapered surface
10/16/2012US8286330 Method of producing a vibrating body for a vibration wave drive device
10/11/2012WO2012139091A1 System and method for depositing material on a piezoelectric array
10/11/2012US20120257776 Apparatus for Use in Portable Devices
10/11/2012US20120257772 Electro-acoustic transducer, electronic apparatus, electro-acoustic conversion method, and sound wave output method of electronic apparatus
10/10/2012CN202488701U Piezoelectric device and loudspeaker
10/10/2012CN102726064A Ultrasonic vibration device
10/10/2012CN102724611A Piezoelectric ceramic loudspeaker capable of improving bass performance
10/09/2012US8281468 Method of manufacturing piezoelectric vibrators
10/09/2012US8281467 Method of manufacturing a piezoelectric vibrator
10/04/2012WO2012132262A1 Oscillator
10/04/2012WO2012132261A1 Oscillator and electronic device
10/04/2012WO2012131825A1 Oscillator and electronic device
10/03/2012CN202475750U Vibrating horn
10/03/2012CN102714771A Sound wave detection device and sound wave source location system
10/03/2012CN102711026A Piezoelectric low-energy-consumption broadband warning device for automobile
10/03/2012CN101536546B Piezoelectric speaker and electronic apparatus with piezoelectric speaker
10/02/2012US8280080 Microcap acoustic transducer device
10/02/2012US8279713 Acoustic transmitter comprising a plurality of piezoelectric plates
10/02/2012US8279712 Composite transducer apparatus and system for processing a substrate and method of constructing the same
10/02/2012US8277441 Piezoelectric transducer
09/2012
09/26/2012CN101529927B Ultrasonic sensor
09/20/2012US20120237075 Audio apparatus
09/20/2012US20120234818 Monolithically applied heating elements on saw substrate
09/20/2012DE102009044774B4 Anti-EMI-Ultraschallmesswertgeber Anti-EMI ultrasonic transducer
09/20/2012DE10123612B4 Ultraschallwellensender/empfänger Ultrasonic wave transmitter / receiver
09/19/2012EP2500844A2 portable data carrier with piezo-electric nano generator
09/19/2012CN102687532A Electroacoustic transducer, electronic device, method for converting electronic sound, and method for outputting acoustic wave from electronic device
09/19/2012CN102685655A Micromechanical digital loudspeaker
09/18/2012US8266773 Method of manufacturing a piezoelectric actuator
09/13/2012WO2012120009A1 Layer composite comprising electroactive layers
09/13/2012US20120232400 Intravascular Ultrasonic Catheter Arrangements
09/13/2012US20120230524 Piezoelectric panel speaker
09/13/2012DE102011013895A1 Implantable sensor actuator transducer building block for machine hearing rehabilitation in tympanic cavity, has cylindrical body whose open side is covered by membrane, and active element arranged between body and another cylindrical body
09/12/2012CN202435604U Point acoustic source device for simulating wood boring insect pest
09/12/2012CN102668598A Actuator, piezoelectric actuator, electronic device, and method for attenuating vibration and converting vibration direction
09/12/2012CN102667523A Airborne ultrasonic sensor
09/12/2012CN102665940A Ultrasonic vibration device
09/11/2012US8261418 Method for manufacturing surface acoustic wave device
09/05/2012CN101828409B Silicon microphone with enhanced impact test structure using bonding wires
09/05/2012CN101467468B Acoustic device and method of manufacturing same
09/04/2012US8256076 Method of making an ultrasonic transducer
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