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)
08/2012
08/31/2012DE202012103099U1 Struktur zur Hemmung der Antiphase des piezoelektrischen Keramik-Lautsprechers Structure for inhibiting the anti-phase of the piezoelectric ceramic speaker
08/30/2012DE202012007375U1 Drahtloses Piezo Tonabnahmesystem für Schuhe (zB:Flamenco, Step-Tanz) Wireless piezo Tonabnahmesystem for shoes (eg: flamenco, tap dancing)
08/29/2012CN102652435A Ultrasound probe
08/28/2012US8254618 Microphone
08/28/2012US8254616 Microphone with a low frequency noise shunt
08/28/2012US8252598 Method of sensing chemical and bio-molecular analytes and sensing system using a microcantilever
08/23/2012WO2012112540A2 Piezoelectric transducers using micro-dome arrays
08/23/2012US20120213388 Unidirectional Mechanical Amplification in a Microphone
08/23/2012US20120213036 Electroacoustic Transducer, in Particular Transmitting Transducer
08/23/2012DE102008006554B4 Ultraschallsensor mit piezoelektrischem Element und akustischem Anpassteil Ultrasonic sensor with a piezoelectric element and audible mating part
08/22/2012CN1957851B Ultrasonic probe and ultrasonic diagnostic apparatus
08/22/2012CN102647657A Monolithic integrated MEMS (Micro-electromechanical Systems) piezoresistive ultrasonic sensor
08/22/2012CN102647656A Sound production device
08/21/2012USRE43595 Noise attenuating headset
08/16/2012WO2012108448A1 Piezoelectric speaker
08/16/2012WO2012108447A1 Piezoelectric device and piezoelectric speaker
08/15/2012EP2487934A1 Piezoelectric film ultrasonic sensor electrode
08/15/2012EP2486301A2 Active 3d.o.f. stiffness element
08/15/2012CN202385269U Bicrystal piezoelectric ceramic chip and bicrystal piezoelectric ceramic loudspeaker made from same
08/15/2012CN101349152B Acoustic transducers suitable for underground
08/14/2012US8240015 Method of manufacturing thin film resonator
08/14/2012US8240014 Method of manufacturing a fuel injector having an encased piezo electric actuator
08/02/2012WO2012102394A1 Ultrasonic transducer, ultrasonic probe, and method for producing ultrasonic transducer
08/01/2012EP2481221A1 Electroacoustic transducer
08/01/2012CN202364372U Piezoelectric ceramic loudspeaker with resonant chamber
08/01/2012CN102625218A Vehicle approach warning apparatus
07/2012
07/31/2012US8230596 Method of manufacturing a liquid ejection head
07/31/2012US8230563 Method of manufacturing a piezoelectric component
07/31/2012US8230562 Method of fabricating an acoustic resonator comprising a filled recessed region
07/30/2012DE202012005178U1 Montageanordnung von Piezolautsprecher-System Mounting arrangement of piezo speaker system
07/26/2012WO2012099573A1 An improved focused acoustic transducer
07/26/2012US20120188850 Ultrasonic sensor unit and electronic device
07/25/2012CN202353806U 陶瓷喇叭 Ceramic Speaker
07/25/2012CN202353805U Cone-shaped super waveguide vibrator of ultrasonic transducer
07/25/2012CN102611967A Bicrystal piezoelectric ceramic wafer and bicrystal piezoelectric ceramic loudspeaker made by same
07/24/2012US8225472 Methods of fabricating a membrane with improved mechanical integrity
07/24/2012US8225470 Process of making series connected interdigitated transducers with center chirping
07/19/2012WO2012096048A1 Piezoelectric vibration component
07/19/2012US20120180276 Manufacturing method of inkjet head
07/17/2012US8224012 Vehicle accessory microphone
07/11/2012EP2475189A2 Acoustic transducer and method of driving the same
07/11/2012EP2473830A1 A mems stress concentrating structure for mems sensors
07/11/2012CN202334878U 一种发声装置 One kind of sound equipment
07/11/2012CN102576073A Ultrasonic sensor
07/11/2012CN102572661A Piezoelectric speaker
07/11/2012CN102572660A Piezoelectric speaker
07/10/2012US8214983 Process for producing piezoelectric ceramic devices
07/10/2012US8214982 Method of fabricating piezoelectric vibrating pieces
07/05/2012WO2012090947A1 Transmitter/receiver unit and receiver unit
07/05/2012WO2012090944A1 Mobile telephone
07/05/2012WO2012090433A1 Electroacoustic transducer
07/05/2012WO2012090383A1 Vibration device and electronic apparatus
07/05/2012WO2012090382A1 Electronic apparatus
07/05/2012US20120170422 Hydrophone and pressure balacing device for using for hydrophone
07/04/2012CN202310094U 一种压电悬臂梁的压电扬声器 A piezoelectric cantilever piezoelectric speaker
07/04/2012CN202310093U 锯齿状阵列式压电扬声器组 Jagged array of piezoelectric speaker group
07/04/2012CN202310092U 压电振动器 The piezoelectric vibrator
07/04/2012CN202310091U 一种圆筒形压电发声系统 One kind of cylindrical piezo sounder system
07/04/2012CN202310090U 压电式声响器 Piezo sounder
07/04/2012CN1843058B Piezoelectric electroacoustic transducer
07/04/2012CN102547542A High-power composite piezoelectric transducer
07/04/2012CN102547541A Piezoelectric sound component
07/04/2012CN102547535A Piezoelectricity ceramic piece and piezoelectricity ceramic loudspeaker adopting same
07/04/2012CN102075837B High-frequency high-sensitivity ultrasonic sensor
07/04/2012CN101385391B Ultrasonic sensor and fabrication method thereof
07/03/2012US8213643 Sound transducer for the transmission of audio signals
07/03/2012US8209828 Method for making a piezoceramic device
07/03/2012US8209826 Method for manufacturing a coupled resonator device
06/2012
06/28/2012WO2012087074A1 Acoustic actuator and acoustic actuator system
06/28/2012WO2012086180A1 Oscillator device and electronic instrument
06/28/2012WO2012086125A1 Oscillator device and electronic instrument
06/28/2012WO2012086124A1 Oscillator device and electronic instrument
06/28/2012US20120163638 Piezoelectric Sound Component
06/28/2012US20120163131 Mono-directional Ultrasound Transducer for Borehole Imaging
06/28/2012US20120163130 Tape cast multilayer sonar transducer and method
06/28/2012US20120163120 Passive noise cancelling piezoelectric sensor apparatus and method of use thereof
06/28/2012US20120163119 Combination motion and acoustic piezoelectric sensor apparatus and method of use therefor
06/28/2012US20120160030 Flexible microsphere coated piezoelectric acoustic sensor apparatus and method of use therefor
06/28/2012DE102010055836A1 Piezoelektrische Stoßwellenquelle Piezoelectric shock wave source
06/27/2012EP2469889A2 Piezoelectric sound component
06/21/2012US20120155678 Piezoelectric speaker
06/21/2012DE102010063555A1 Vorrichtung zum Senden und/oder Empfangen eines Ultraschallsignals An apparatus for transmitting and / or receiving an ultrasonic signal
06/21/2012DE102010063442A1 Sound-wave-based sensor i.e. ultrasound sensor, for detecting objects in environment of motor car during parking process, has membrane for generating and/or detecting sound waves and comprising protecting layers that are made of polymer
06/21/2012DE102010063438A1 Schallwellenbasierter Sensor zur Umfelddetektion und Verwendung desselben The same sound wave-based sensor for detecting environment and use
06/21/2012DE102010062990A1 Schallwandler mit zumindest einem Piezoelement Sound transducer with at least one piezo element
06/20/2012CN101313628B Electroacoustic transducer
06/19/2012US8203912 CMUTs with a high-k dielectric
06/19/2012US8201311 Process of making a BAW resonator bi-layer top electrode
06/14/2012WO2012077224A1 Aerial ultrasonic sensor
06/14/2012WO2012054280A4 Compliant couplant with liquid reservoir for transducer
06/14/2012US20120148073 Piezoelectric speaker
06/14/2012US20120147708 Proximity sensor used by an operation robot and method of operating the proximity sensor
06/14/2012DE102010063050A1 Method of manufacturing piezoelectric acoustic transducer for vehicle, involves introducing solid materials having electrical insulating properties in gap between electrodes, when polarization voltage is applied in gap between electrodes
06/14/2012DE102010063001A1 Schallwandler mit zumindest einem Piezoelement Sound transducer with at least one piezo element
06/14/2012DE102010053713A1 Elektroakustische Wandleranordnung und Verfahren zum Betreiben einer elektroakustischen Wandleranordnung Electroacoustic transducer arrangement and method for operating an electro-acoustic transducer arrangement
06/14/2012DE102009061087B3 Ultraschallsensor Ultrasonic sensor
06/14/2012DE102006061886B4 Ultraschallsensor Ultrasonic sensor
06/14/2012DE102005040081B4 Ultraschallsensor Ultrasonic sensor
06/13/2012CN101543095B Ultrasonic transducer
06/13/2012CN101371616B Ultrasonic sensor
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