Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 23 - Transducers other than those covered by groups
Patents for H04R 23 - Transducers other than those covered by groups (1,562)
09/2010
09/01/2010CN101820571A Speaker system
08/2010
08/19/2010WO2010092197A1 Simultaneous control system for lighting and audio devices
08/18/2010CN101808264A Optical fiber laser microphone
08/12/2010WO2010066348A3 Ferroelectret double and multilayer composite and method for production thereof
08/11/2010EP2217006A1 A hearing device
07/2010
07/21/2010CN201533406U Loudspeaker
07/21/2010CN101783997A Fiber laser microphone and speaker system
07/21/2010CN101783996A Thermoacoustic device
07/21/2010CN101783995A Thermoacoustic device
07/21/2010CN101783994A Thermoacoustic device
07/14/2010CN101778328A Optical fiber microphone
07/14/2010CN101778327A Electricity and sound conversion method and device
07/14/2010CN101778326A Flexible cold-light electroacoustic actuator and electronic device using electroacoustic actuator
07/07/2010CN201523448U Speaker and portable electronic equipment
07/07/2010CN101771922A Sounding device
07/07/2010CN101771921A Sounding device
07/07/2010CN101771920A Sounding device
07/07/2010CN101771919A Sounding device
07/07/2010CN101771918A Thermal sounding device
07/07/2010CN101771917A Sounding device
07/07/2010CN101771916A Sounding device
07/07/2010CN101771915A Sounding device
07/07/2010CN101771914A Sounding module and sounding device using same
07/07/2010CN101771906A Loudspeaker
07/07/2010CN101771385A Power amplification circuit and thermally induced sound-producing device with power amplification circuit
07/01/2010US20100164582 Driving configuration of a switch
06/2010
06/23/2010EP2199004A1 Method and device for arc welding or arc soldering with coded information in the superposed alternative current
06/23/2010CN101754080A Sound-generating device
06/23/2010CN101754079A Sound-generating device
06/17/2010CA2746482A1 Ferroelectret double and multilayer composite and method for production thereof
06/09/2010CN101729967A Acousto-optic conversion method and optical microphone based on multiple-mode interference
06/03/2010WO2010061060A1 Sound source based on the thermoacoustic effect
05/2010
05/26/2010CN101715160A Flexible sound producing device and sound producing flag
05/26/2010CN101713531A Sounding type lighting device
05/12/2010CN101707504A Optical fiber intercome device
05/05/2010CN1989418B Acoustic wave sensor
05/05/2010CN1571582B Mini-acoustical device based on magneto resistor effect
04/2010
04/22/2010US20100098271 Membrane or membrane configuration for an electrodynamic sound transducer, and loudspeaker comprising such a membrane or membrane configuration
04/22/2010US20100098270 Systems and methods to provide communication, positioning and monitoring of user status
04/14/2010EP2175267A1 Ultrasonic detection device, ultrasonic detection method, and atomic power plant nondestructive inspection method
03/2010
03/31/2010EP2169981A1 Optical pin-point microphone
03/18/2010WO2010029509A1 Transducer system
02/2010
02/25/2010DE202009012811U1 Lasergestützte Abtastung einer Membran, die durch Schalldruck ausgelenkt wird Laser-based scanning of a membrane, which is deflected by the sound pressure
02/24/2010CN201414214Y Miniature hearing-aid compatible receiver
02/24/2010CN101656907A Sound box
02/23/2010US7668322 Device for detecting pressure fluctuations, display device, recording device and sound reproduction system
02/18/2010DE102008038883A1 Microphone assembly for measuring sound signals, particularly in hot temperature, has switching device that alternatively defers light of frequency to link another light of another frequency into light conductor
02/10/2010CN101646122A Electroacoustic transduction device and method
02/10/2010CN101646121A Microphone module
02/04/2010US20100026143 Monolithic electroactive polymers
02/02/2010US7657043 Electro-optical device and electronic apparatus
12/2009
12/30/2009EP2138998A2 Thermoacoustic device comprising a carbon nanotube structure
12/30/2009CN101616354A Optical microphone
12/23/2009WO2009152549A1 Headset
12/23/2009CN101610445A Sounding device
12/23/2009CN101610444A Sounding device
12/23/2009CN101610443A Audible device
12/23/2009CN101610442A Audible device
12/16/2009CN101606397A Acoustic substrate
12/16/2009CN101605292A Sounding device and sounding component
12/16/2009CN101605291A Sound transmission system
12/16/2009CN101605290A Sounding device
12/16/2009CN101605289A Sounding device
12/15/2009CA2384613C Unitary transducer control system
12/09/2009EP2131191A1 Ultrasonic inspection equipment
12/09/2009CN101600141A Sound production device
12/09/2009CN101600140A Sound producing device
12/09/2009CN101600139A Sound producing device
12/09/2009CN101599268A Sound-producing device and sound-producing element
12/08/2009CA2457531C Two delay coil sagnac-based sensor array
12/03/2009US20090296974 Ear Hook Microphone
11/2009
11/25/2009EP2123112A1 Acoustic substrate
11/25/2009EP2123111A1 Loudspeaker actuator
11/25/2009CN101588530A Moving-magnetic type bone conduction audio-frequency transducer
11/25/2009CN101587674A Outdoor directional sound advertising device
11/18/2009CN101583069A Multimedia bone conduction device
11/12/2009WO2009136012A1 Electron organization for dynamic chemical and mechanical performances
11/04/2009EP2114088A2 Sound producing device
10/2009
10/27/2009US7609844 Noise attenuating headset
10/14/2009CN101557547A Bone conduction sensor
10/14/2009CN100550593C Tactile device
10/08/2009DE102008013586A1 Vorrichtung und Verfahren zur Ausgabe von akustischen Signalen Apparatus and method for output of acoustic signals
10/07/2009EP2107824A2 Lead frame and package of semiconductor device
10/07/2009CN201323654Y Packaging structure of micro electro mechanical system (MEMS) transducer
10/07/2009CN201323653Y Packaging structure of transducer
10/01/2009US20090245545 Loudspeaker panel with a microphone and method for using both
09/2009
09/16/2009CN201312385Y Packaging structure of energy transducer
09/16/2009CN201312384Y Anti-noise bone-conduction microphone
09/16/2009CN101536548A Gm global tech operations inc [us]
08/2009
08/25/2009CA2465311C Optical displacement sensor
08/05/2009EP2084489A1 Multi-phase interferometer
07/2009
07/30/2009US20090190791 Acoustic transducer comprising a plurality of coaxially arranged diaphragms
07/23/2009US20090185705 Headphone
07/23/2009US20090185698 Structure of an andio device
07/22/2009CN100517726C Thin film circuit substrate, piezoelectric speaker device, display device, and sound source built-in type display device
07/16/2009US20090180646 Wearable Tactile Subwoofer and Its Use
07/08/2009CN101480068A Electroacoustic transducer
06/2009
06/23/2009US7551417 Thin film circuit substrate, piezoelectric speaker device, display device, and sound-generating display device
06/03/2009CN201252641Y Mems麦克风 Mems Microphone
05/2009
05/21/2009US20090127020 Acoustically transmissive blanket system
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