| Patents for H04R 19 - Electrostatic transducers (5,387) |
|---|
| 03/13/2013 | CN102970645A A-weighted microphone device for double-audio-frequency phone and noise reduction method thereof |
| 03/13/2013 | CN102970644A Microphone polar plate assembly and method for machining polar plate unit by using same |
| 03/13/2013 | CN102963856A A micro-electro-mechanical system device and a manufacture method thereof |
| 03/13/2013 | CN101346015B Electrostatic electroacoustic transducers |
| 03/07/2013 | WO2013033142A2 High voltage multiplier for a microphone and method of manufacture |
| 03/07/2013 | WO2013033001A1 System and a method for streaming pdm data from or to at least one audio component |
| 03/07/2013 | WO2013032821A1 Piezoelectric microphone fabricated on glass |
| 03/07/2013 | WO2013032820A1 Piezoelectric microphone fabricated on glass |
| 03/07/2013 | WO2013031811A1 Acoustic sensor and method for manufacturing same |
| 03/07/2013 | WO2012059814A3 Electrostatic loudspeaker system |
| 03/06/2013 | EP2566183A1 MEMS microphone with a built-in textile material protecting screen |
| 03/06/2013 | CN202773074U Electret microphone |
| 03/06/2013 | CN102957992A Dual backplate microphone |
| 03/06/2013 | CN101883305B Diaphragm and silicon-based microphone employing diaphragm |
| 03/06/2013 | CN101742390B Miniature microphone for inhibiting interference signal |
| 03/06/2013 | CN101448193B Capacitive microphone |
| 02/28/2013 | WO2013028399A2 Acoustic apparatus and method of manufacturing |
| 02/27/2013 | EP2563043A1 Ultrasound probe, production method therefor, and ultrasound diagnostic equipment |
| 02/21/2013 | WO2013025914A2 Sensitivity adjustment apparatus and method for mems devices |
| 02/21/2013 | WO2013023574A1 Flat electrostatic loudspeaker |
| 02/21/2013 | US20130044906 Electret loudspeaker device |
| 02/21/2013 | US20130044905 Electret loudspeaker device |
| 02/21/2013 | US20130044899 Dual Backplate Microphone |
| 02/21/2013 | DE102011084582B3 Micromechanical sensor device, particularly micromechanical pressure sensors, microphones, acceleration sensors or optical sensors, has substrate, circuit chip fixed on substrate and mold package, in which circuit chip is packaged |
| 02/20/2013 | EP2560408A2 Dual backplate microphone |
| 02/20/2013 | CN202750047U 温度补偿系统 Temperature Compensation System |
| 02/20/2013 | CN102939768A Substrate with electro-acoustic conversion element mounted thereon, microphone unit, and manufacturing methods therefor |
| 02/20/2013 | CN102938871A Piezoelectric electret microphone and piezoelectric electret film thereof |
| 02/14/2013 | WO2013022030A1 Flexible conductive material |
| 02/14/2013 | WO2013021235A1 A transducer apparatus comprising two membranes. |
| 02/14/2013 | US20130039516 Sound Production Component |
| 02/13/2013 | EP2557812A1 Microphone |
| 02/13/2013 | CN202738101U Thin electrostatic loudspeaker |
| 02/13/2013 | CN202738100U Device with function of microphone and loudspeaker |
| 02/13/2013 | CN202738099U 驻极体传声器 Electret microphone |
| 02/13/2013 | CN102932724A Micro-electro-mechanical sensor chip and manufacturing method thereof |
| 02/13/2013 | CN102932723A Two-end micro-electro-mechanical system (MEMS) microphone |
| 02/13/2013 | CN102932722A Micro-electromechanical systems (MEMS) microphone |
| 02/13/2013 | CN102932721A Microelectromechanical systems (MEMS) microphone |
| 02/13/2013 | CN102932720A Microelectromechanical systems (MEMS) microphone |
| 02/13/2013 | CN102932719A Thin film structure of condenser microphone and method for forming thin film structure |
| 02/13/2013 | CN102932718A Electret microphone picking up differential signals |
| 02/12/2013 | US8374364 Acoustic sensor and method of manufacturing the same |
| 02/12/2013 | US8372011 Asymmetric membrane cMUT devices and fabrication methods |
| 02/07/2013 | DE102009016487B4 Mikrofonchip Microphone chip |
| 02/06/2013 | EP2555544A2 Condenser-type sounding body unit and earphone employing the same |
| 02/06/2013 | EP2555543A1 MEMS Microphone |
| 02/06/2013 | EP2553944A1 Low noise electret microphone |
| 02/06/2013 | CN102918874A Acoustic transducer, and microphone using the acoustic transducer |
| 02/06/2013 | CN102917303A Microphone packaged by plastic casing |
| 02/06/2013 | CN102917302A Unidirectional electret microphone |
| 02/06/2013 | CN102917301A Condenser-type sounding body unit and earphone employing the same |
| 02/06/2013 | CN101815234B Assembly structure of plane loudspeaker |
| 02/06/2013 | CN101494810B Sound play device and method |
| 02/06/2013 | CN101287304B Deep sub-micron MOS preamplifier with thick-oxide input stage transistor |
| 02/05/2013 | US8369556 Microphone pop filter |
| 02/05/2013 | US8369546 Ultrasonic transducer for parametric array |
| 01/31/2013 | DE102011080125A1 Kapazitiver Schallwandler mit Faserverstärkung Capacitive transducers with fiber reinforcement |
| 01/31/2013 | DE102007050410B4 Elektronische Vorrichtung und Mikrofonvorrichtung Electronic device and microphone device |
| 01/31/2013 | DE102006047203B4 Mikrophonanordnung und Verfahren zu deren Herstellung Microphone arrangement and methods for their preparation |
| 01/30/2013 | EP2552124A1 Substrate with electro-acoustic conversion element mounted thereon, microphone unit, and manufacturing methods therefor |
| 01/30/2013 | CN102907118A Acoustic sensor, acoustic transducer, microphone using acoustic transducer, and method for producing acoustic transducer |
| 01/29/2013 | US8363514 Variable operating voltage in micromachined ultrasonic transducer |
| 01/24/2013 | WO2013011949A1 Heat-resistant electret material and condenser microphone |
| 01/24/2013 | DE102012200957A1 Bauelement mit einer mikromechanischen Mikrofonstruktur Component having a micromechanical microphone structure |
| 01/23/2013 | EP2549557A2 Electric energy generating device |
| 01/23/2013 | CN202696882U Condenser microphone |
| 01/23/2013 | CN202696881U Condenser microphone |
| 01/23/2013 | CN202696880U Electronic balancing circuit of condenser microphone |
| 01/23/2013 | CN202696879U Amplifier circuit of condenser microphone |
| 01/23/2013 | CN202696878U Condenser microphone |
| 01/23/2013 | CN202696877U Electret microphone |
| 01/23/2013 | CN202696876U Adjustable vehicle-mounted microphone assembly, corresponding microphone and automobile thereof |
| 01/23/2013 | CN102893632A Electric component having shallow physical shape, and method of manufacture |
| 01/23/2013 | CN102892064A Electroacoustic sensor packaging structure for microcomputer |
| 01/23/2013 | CN101656906B Speaker monomer structure |
| 01/22/2013 | US8358004 Surface mount silicon condenser microphone package |
| 01/17/2013 | WO2013008547A1 Ultrasonic element, and ultrasonic endoscope |
| 01/17/2013 | WO2013008546A1 Ultrasonic element, and ultrasonic endoscope |
| 01/16/2013 | EP2547121A2 MEMS microphone with overtravel stop structure |
| 01/16/2013 | EP2545715A1 Electrostatic parallel plate actuators whose moving elements are driven only by electrostatic force and methods useful in conjunction therewith |
| 01/16/2013 | CN202679635U A highly efficient corona polarizing system |
| 01/16/2013 | CN202679629U MEMS (Micro-electromechanical System) microphone |
| 01/16/2013 | CN202679628U MEMS (Micro-electromechanical System) microphone |
| 01/16/2013 | CN202679627U MEMS (Micro-electromechanical System) microphone |
| 01/16/2013 | CN202679626U Chip for integrating MEMS microphone with CMOS integrated circuit |
| 01/16/2013 | CN202679625U Capacitance microphone |
| 01/16/2013 | CN202679624U Mems麦克风 Mems Microphone |
| 01/16/2013 | CN202679623U Mems麦克风 Mems Microphone |
| 01/16/2013 | CN202679622U Electret microphone with anti-electromagnetic interference function, and PCB (Printed Circuit Board) |
| 01/16/2013 | CN202679621U Electret microphone and audio acquisition circuit |
| 01/16/2013 | CN202679620U An electret microphone |
| 01/16/2013 | CN202679619U An electret microphone |
| 01/16/2013 | CN202679618U 一种驻极体传声器 An electret microphone |
| 01/16/2013 | CN202679617U An electret microphone member |
| 01/16/2013 | CN202679616U Electret capacitance-type microphone |
| 01/16/2013 | CN202679615U Electret capacitance-type microphone |
| 01/16/2013 | CN202679614U Electret capacitance-type microphone |
| 01/16/2013 | CN102884814A Ultrasonic oscillator unit and ultrasonic probe |
| 01/16/2013 | CN102883664A Ultrasound observation apparatus |