| Patents for H04R 23 - Transducers other than those covered by groups (1,562) |
|---|
| 05/20/2009 | EP2061098A1 Thermal sound generating device |
| 05/13/2009 | CN201238382Y Audio sensing instrument with convenient process and assembly |
| 04/29/2009 | CN101422050A Hybrid actuator, loudspeaker and sound output method |
| 04/22/2009 | CN201226595Y Moving magnetic type bone conduction audio transducer |
| 04/22/2009 | CN101415139A Encapsulation structure for micro electromechanical system transducer |
| 04/22/2009 | CN101415138A Encapsulation structure for MEMS transducer |
| 04/16/2009 | US20090097678 Digital microphone and power supply unit for a digital microphone |
| 04/15/2009 | CN201222804Y Earphone for bone conduction apparatus |
| 04/09/2009 | DE102006013345B4 Optisches Mikrofon ohne Membran Optical microphone without membrane |
| 04/08/2009 | CN201219305Y Bone conduction apparatus |
| 04/01/2009 | CN201216023Y Bone conduction type earphone |
| 04/01/2009 | CN101400011A Skull conducting apparatus |
| 03/25/2009 | EP2039215A1 Electroacoustic transducer |
| 03/25/2009 | CN100472832C Radial power MHz ultrasound transducer |
| 03/24/2009 | CA2465299C Optical displacement sensor element |
| 03/18/2009 | EP1218716A4 Unitary transducer control system |
| 02/19/2009 | WO2009022658A1 Ultrasonic detection device, ultrasonic detection method, and atomic power plant nondestructive inspection method |
| 02/11/2009 | EP2023660A1 Hybrid actuator, loudspeaker and sound output method |
| 02/11/2009 | CN101362585A Semiconductor device, lead frame, and microphone package therefor |
| 01/06/2009 | US7474590 Pressure wave generator and process for manufacturing the same |
| 12/30/2008 | US7471280 Tactile device |
| 12/23/2008 | US7468575 Electroactive polymer electrodes |
| 12/10/2008 | CN101321414A Multifunctional energy converter |
| 11/27/2008 | US20080289420 Ultrasound Transducers |
| 11/26/2008 | CN201156821Y Bone conducting loudspeaker connecting apparatus |
| 11/06/2008 | WO2008111961A3 Apparatus and method for sonic cleaning of an air filter for wheeled and tracked vehicles |
| 11/05/2008 | EP1386415A4 Parametric virtual speaker and surround-sound system |
| 10/23/2008 | WO2008126437A1 Ultrasonic inspection equipment |
| 10/22/2008 | CN100428865C Structuro of diaphragm for optoacoustic transducer |
| 10/01/2008 | CN201127116Y Ultra thin type depth base loudspeaker having touch shake sense |
| 10/01/2008 | CN201127115Y Vibration transducer |
| 09/24/2008 | CN101273661A Pressure wave generator and production method therefor |
| 09/18/2008 | WO2008111961A2 Apparatus and method for sonic cleaning of an air filter for wheeled and tracked vehicles |
| 09/17/2008 | CN201118980Y Audio sensing instrument |
| 09/17/2008 | CN201118979Y Semiconductor laser microphone |
| 09/10/2008 | CN100418104C Surface acoustic wave converter and identification system using the same |
| 09/03/2008 | EP1963441A1 Polyelectrolyte monolayers and multilayers for optical signal transducers |
| 08/27/2008 | EP1961260A1 Methods, systems and apparatus for measuring acoustic pressure |
| 08/26/2008 | US7418109 Diaphragm structure of light sound converter |
| 08/20/2008 | EP1188348B1 Microfabricated transducer and method for making the same |
| 08/20/2008 | CN201104364Y Bipolar modulating high power pneumatic loudspeaker |
| 08/14/2008 | US20080191585 Electroactive polymer electrodes |
| 08/13/2008 | EP1459293B8 Electropneumatic horn |
| 08/13/2008 | EP1216602B1 Mems digital-to-acoustic transducer with error cancellation |
| 08/13/2008 | CN201100959Y Bone induction audio bidirectional receiving/transmission device |
| 08/13/2008 | CN101242683A Digital coding and modulation airflow speaker |
| 07/31/2008 | WO2008089853A1 Loudspeaker actuator |
| 07/23/2008 | EP1947900A2 Acoustic playback device and method for creating sound |
| 07/01/2008 | US7394182 Electroactive polymer devices for moving fluid |
| 06/26/2008 | WO2008076929A1 Acoustic substrate |
| 06/26/2008 | US20080152186 Composite acoustic transducers |
| 06/25/2008 | CN101207942A Ultra thin type depth base tone loudspeaker with touch sensation shaking feeling |
| 06/25/2008 | CN101207938A Bone conduction speaker connecting device |
| 06/25/2008 | CN101207932A Bone induction audio frequency bidirectional transmitting/receiving device |
| 06/24/2008 | US7391976 Optical acoustoelectric transducer |
| 06/18/2008 | CN101204119A Thermo-acoustic transducers |
| 06/18/2008 | CN101203067A Vibration transducer |
| 06/12/2008 | US20080139946 Capacitive ultrasonic transducer, production method thereof, and capacitive ultrasonic probe |
| 06/12/2008 | US20080136052 Electroactive polymer manufacturing |
| 06/05/2008 | US20080131115 Device for Optical Remote Monitoring and System Comprising Such a Device |
| 05/21/2008 | EP1247421A4 Piezoelectric film sonic emitter |
| 05/20/2008 | CA2401983C Folded sagnac sensor array |
| 05/15/2008 | US20080112582 Quasi-Self-Focusing High Intensity And Large Power Ultrasonic Transducer |
| 05/13/2008 | US7372110 Display with integral sound wave generation device |
| 05/07/2008 | EP1459293B1 Electropneumatic horn |
| 05/06/2008 | US7368862 Electroactive polymer generators |
| 04/30/2008 | EP1916870A1 Pressure wave generator and production method therefor |
| 04/22/2008 | US7362032 Electroactive polymer devices for moving fluid |
| 04/15/2008 | US7359523 Fluidic acoustic transducer |
| 04/10/2008 | WO2007143362A3 Improved displacement sensor |
| 04/10/2008 | US20080085018 Apparatus and method for sonic cleaning of an air filter for wheeled and tracked vehicles |
| 04/10/2008 | DE102006046700A1 Hinter-dem-Ohr-Hörgerät mit externem, optischem Mikrofon Behind-the-ear hearing aid with external optical microphone |
| 04/09/2008 | EP1909536A2 Behind-the-ear hearing aid with external, optical microphone |
| 04/08/2008 | CA2455304C System and method for monitoring performance of downhole equipment using fiber optic based sensors |
| 03/13/2008 | WO2008029451A1 Thermal sound generating device |
| 03/12/2008 | EP1897406A2 Thermo-acoustic transducers |
| 03/11/2008 | CA2232073C Multi-sense home entertainment chair transducer system |
| 03/05/2008 | CN100373223C Electric light device and electronic apparatus |
| 02/28/2008 | US20080051623 Simplified implantable hearing aid transducer apparatus |
| 02/27/2008 | CN101132653A Optical fiber silicon microphone system based on phase carrier modulation |
| 02/19/2008 | CA2340072C Harmonic amplifier and corresponding electroacoustic transducer |
| 02/07/2008 | WO2008015664A2 Compact optical video disc player and a method for playing a video stream |
| 02/06/2008 | CN201018663Y Bone conduction multi-channel device |
| 02/05/2008 | US7327637 Acoustic pulse actuator |
| 01/30/2008 | CN201015227Y Loudspeaker type audio vibrator device |
| 01/30/2008 | CN201015226Y Flat series magnetic circuit type audio vibrator device |
| 01/30/2008 | CN201015225Y Audio vibrator device |
| 01/24/2008 | DE102006033903A1 Thermo-optical sound generator for e.g. earphone, has porous material with pores filled with fluid staying in direct contact with medium and under static pressure, where membrane does not exist between fluid in region of material and medium |
| 01/23/2008 | EP1880574A2 Hearing system having improved high frequency response |
| 01/22/2008 | US7320457 Electroactive polymer devices for controlling fluid flow |
| 01/17/2008 | WO2005099307A3 Technique and device for through-the-wall audio surveillance |
| 01/17/2008 | US20080013777 Headset device and method measuring a biosignal |
| 01/17/2008 | US20080013775 Noise Attenuating Headset |
| 01/09/2008 | CN201004711Y Identification device for sound texture of nose bone conduction alive body |
| 01/09/2008 | CN100361196C Electropneumatic horn |
| 01/08/2008 | US7317804 Sound collecting device minimizing electrical noise |
| 01/03/2008 | WO2008000007A1 Electroacoustic transducer |
| 12/26/2007 | EP1869947A1 Method and apparatus for communicating sound over an optical link |
| 12/18/2007 | CA2500045C Hydrophone mandrel for precise placement of gratings |
| 12/12/2007 | EP1212800B1 Electroactive polymer generators |