| Patents for H04R 19 - Electrostatic transducers (5,387) |
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| 10/05/2011 | CN202004963U Frequency modulation wireless microphone manufactured by muPC1651 integrated circuit |
| 10/05/2011 | CN202004962U Silicon crystal microphone device |
| 10/05/2011 | CN202004961U Welding spot digital loudspeaker |
| 10/05/2011 | CN1968546B Electrostatic transducer, driving circuit of capacitive load, method for setting circuit constant |
| 10/05/2011 | CN102209287A MEMS (micro electro mechanical system) microphone chip and manufacture method thereof |
| 09/29/2011 | WO2011119346A1 Methods and devices for pressure detection |
| 09/29/2011 | WO2011068344A9 Mems microphone and method for manufacturing same |
| 09/29/2011 | WO2011049323A3 Condenser microphone |
| 09/28/2011 | EP2369855A2 Electronic device with electret electro-acoustic transducer |
| 09/28/2011 | CN201995129U 一种抗干扰三端传声器 One kind of three-terminal interference microphone |
| 09/28/2011 | CN201995128U Mems麦克风以及包含它的mems麦克风模组 Mems microphone, and the microphone module containing it mems |
| 09/28/2011 | CN201995127U 硅微型传声器 Silicon micro microphone |
| 09/28/2011 | CN201995118U 一种振膜及麦克风 One kind of diaphragm and microphone |
| 09/28/2011 | CN1993000B Electro-acoustic actuator and method for manufacture |
| 09/28/2011 | CN102204279A Means for transforming luminaires into audio emitters |
| 09/22/2011 | WO2011114398A1 Mems device |
| 09/22/2011 | WO2011081998A3 Integrated circuit formed with microphone transducer |
| 09/21/2011 | CN201986147U 电容式麦克风 Condenser Microphone |
| 09/21/2011 | CN201986146U 电容式麦克风及其线路板形成组件 Condenser microphones formed components and circuit boards |
| 09/21/2011 | CN201986145U 电容式麦克风 Condenser Microphone |
| 09/21/2011 | CN201986144U 内置联体环的驻极体麦克风 Electret microphone Built conjoined rings |
| 09/21/2011 | CN102197449A Electret electrode, actuator using the electret electrode, oscillation generator, oscillation generation device, and communication device using the oscillation generation device |
| 09/21/2011 | CN102196346A Wireless frequency modulation microphone manufactured by muPC1651 integrated circuit |
| 09/21/2011 | CN102196345A Capacitance type sensor and manufacturing method thereof |
| 09/21/2011 | CN102190282A MEMS (Micro Electro Mechanical System) packaging structure and manufacturing method thereof |
| 09/21/2011 | CN102190278A Semiconductor device and microphone |
| 09/15/2011 | WO2011111427A1 Ultrasonic transducer and ultrasonic diagnostic device using same |
| 09/15/2011 | WO2011111042A1 Electrostatic parallel plate actuators whose moving elements are driven only by electrostatic force and methods useful in conjunction therewith |
| 09/15/2011 | CA2792741A1 Electrostatic parallel plate actuators whose moving elements are driven only by electrostatic force and methods useful in conjunction therewith |
| 09/14/2011 | CN201976249U 电容式麦克风 Condenser Microphone |
| 09/14/2011 | CN201976248U 微电子机械系统传声器 MEMS microphones |
| 09/14/2011 | CN1802037B Back electret type silicon-based minisize electret capacitor microphone |
| 09/14/2011 | CN102187685A Microphone having multiple transducer elements |
| 09/14/2011 | CN101141835B Semiconductor microphone unit |
| 09/13/2011 | US8019109 Microphone boom with adjustable wind noise suppression |
| 09/13/2011 | US8019101 Condenser microphone |
| 09/13/2011 | US8018049 Silicon condenser microphone and manufacturing method |
| 09/08/2011 | US20110216923 Structure of flexible speaker |
| 09/07/2011 | EP1874678B1 Mems sensor comprising a deformation-free back electrode |
| 09/06/2011 | US8014546 EMI shielding for a microphone |
| 09/01/2011 | WO2011105602A1 Ultrasonic oscillator unit and ultrasonic probe |
| 09/01/2011 | WO2011104784A1 Converter module, and method for producing same |
| 09/01/2011 | WO2011103720A1 Semiconductor package for mems device and method of manufacturing the same |
| 09/01/2011 | US20110210409 Surface Mount Silicon Condenser Microphone Package |
| 08/31/2011 | CN201957237U 可外部极化的麦克风 Can be external polarization of microphone |
| 08/31/2011 | CN102170605A Micro-electro-mechanical system microphone and micro-electro-mechanical system microphone chip integrated with filter |
| 08/31/2011 | CN101053279B Directional silicon condenser microphone |
| 08/31/2011 | CN101010983B Silicon based condenser microphone and mounting method for the same |
| 08/25/2011 | WO2011102104A1 Capacitor microphone and production method therefor |
| 08/25/2011 | WO2011101291A1 Mems microphone and method for manufacture |
| 08/25/2011 | US20110206221 Condenser microphone having a flexible neck |
| 08/24/2011 | EP2360942A2 Acoustic Sensor |
| 08/24/2011 | EP2359678A1 Method for evaluating healthiness of vascular plants, method for watering vascular plants, film-shaped electret sensor, and film-like ecm array |
| 08/24/2011 | CN201947439U 一种用与非门电路制作的调频无线话筒 One kind produced by the NAND gate circuit FM wireless microphone |
| 08/24/2011 | CN1706218B A condenser microphone mountable on main PCB |
| 08/24/2011 | CN102165793A Circuit arrangement for providing an analog signal, and electronic apparatus |
| 08/24/2011 | CN102164334A Condenser microphone having a flexible neck |
| 08/24/2011 | CN102164333A Acoustic sensor |
| 08/23/2011 | US8005207 Microphone coupler system for a communication device |
| 08/18/2011 | DE102010008044A1 MEMS-Mikrofon und Verfahren zur Herstellung MEMS microphone and methods for preparing |
| 08/17/2011 | EP2357844A1 Microphone unit and voice input device using same |
| 08/17/2011 | EP1512215B1 Electroactive polymer devices for moving fluid |
| 08/17/2011 | CN201937821U 微电子机械系统传声器 MEMS microphones |
| 08/17/2011 | CN102158789A MEMS (Micro Electro Mechanical System) microphone structure and forming method thereof |
| 08/17/2011 | CN102158788A MEMS (Micro-electromechanical Systems) microphone and formation method thereof |
| 08/17/2011 | CN102158787A MEMS (Micro Electro Mechanical System) microphone and pressure integration sensor, and manufacturing method thereof |
| 08/17/2011 | CN102158786A Electret condenser microphone |
| 08/17/2011 | CN102158785A Plane loudspeaker unit and plane loudspeaker apparatus |
| 08/17/2011 | CN101189909B Condenser microphone for SMD using sealing pad and method of making the same |
| 08/17/2011 | CN101156500B Electret condenser microphone |
| 08/11/2011 | WO2011096868A1 Method and arrangement for driving a microphone |
| 08/11/2011 | CA2788409A1 Method and arrangement for driving a microphone |
| 08/10/2011 | EP2355541A1 Microphone unit |
| 08/10/2011 | CN1703932B Membrane and method for the production of the same |
| 08/10/2011 | CN102150225A Electret film and electret comprising same |
| 08/10/2011 | CN102148467A Bearing seat of handheld electronic device with speaker and electronic system |
| 08/10/2011 | CN102148209A Semiconductor component |
| 08/04/2011 | WO2011093584A2 Broadband mems microphone structure |
| 08/04/2011 | DE102010006132A1 Miniaturisiertes elektrisches Bauelement mit einem MEMS und einem ASIC Miniaturized electrical component with a MEMS and an ASIC |
| 08/03/2011 | EP2352311A1 Microphone |
| 08/03/2011 | EP2352309A1 Sound Source Tracking Device |
| 08/03/2011 | EP2351381A2 Actuator apparatus with comb-drive component and methods useful for manufacturing and operating same |
| 08/03/2011 | EP2349593A1 Cmut cell consisting of a membrane of nanotubes or nanowires or nanobeams |
| 08/03/2011 | CN1886000B Electro-acoustic transducer |
| 08/03/2011 | CN102143425A Film speaker array |
| 08/03/2011 | CN102143424A Double-purpose thin film equipment for sound transmission and extension and manufacturing method thereof |
| 07/28/2011 | WO2011089919A1 Image display device with sound generating function |
| 07/28/2011 | US20110182150 Actuator apparatus with comb-drive component and methods useful for manufacturing and operating same |
| 07/27/2011 | CN201910914U Capacitance microphone |
| 07/27/2011 | CN201910913U Silicon capacitive microphone with additional back cavity |
| 07/27/2011 | CN201910912U Capacitance microphone |
| 07/27/2011 | CN201910911U Capacitive microphone |
| 07/27/2011 | CN1997243B Pliable loudspeaker and its making method |
| 07/27/2011 | CN1756443B Microphone comprising two pressure-gradient capsules |
| 07/27/2011 | CN102137321A Thin film type microphone array |
| 07/21/2011 | WO2011087992A1 Methods and devices for pressure detection |
| 07/20/2011 | EP2346270A2 Micro-electromechanical system microphone |
| 07/20/2011 | CN102132584A Ultrasonic transducer, electronic device, and ultrasonic endoscope |
| 07/20/2011 | CN102131140A Micro-electro-mechanical systems (MEMS) microphone |
| 07/20/2011 | CN102131139A Microphone package of micro-electro-mechanical system and manufacturing method thereof |