| Patents for H04R 19 - Electrostatic transducers (5,387) |
|---|
| 08/12/2009 | CN101505446A Capacitor type microphone unit |
| 08/05/2009 | CN101500187A Single directivity capacitor type microphone unit and linear microphone |
| 08/04/2009 | US7570773 Sound detecting mechanism |
| 07/30/2009 | DE102008005686A1 MEMS-Bauelement, Verfahren zur Herstellung eines MEMS-Bauelements und Verfahren zur Handhabung eines MEMS-Bauelements MEMS device, method for manufacturing a MEMS device and method for handling a MEMS device |
| 07/29/2009 | EP2082609A2 Microphone microchip device with differential mode noise suppression |
| 07/29/2009 | CN201282554Y Condenser microphone polar plate |
| 07/29/2009 | CN101494814A Voltage variation capacitance device |
| 07/23/2009 | US20090184606 Rolled electroactive polymers |
| 07/22/2009 | CN101489170A Self-detecting silicon micromechanical microphone and production method thereof |
| 07/21/2009 | USRE40860 Electrostatic audio loudspeakers |
| 07/15/2009 | CN201274566Y Mems麦克风 Mems Microphone |
| 07/15/2009 | CN201274565Y Microphone |
| 07/15/2009 | CN201274564Y Capacitive microphone |
| 07/15/2009 | CN201274563Y 数字麦克风 Digital Microphone |
| 07/15/2009 | CN201274562Y Minimized microphone |
| 07/15/2009 | CN201274561Y Uni-directional capacitive microphone |
| 07/15/2009 | CN201274560Y 驻极体麦克风 Electret microphone |
| 07/15/2009 | CN100515119C Chip for silicon micro capacitor microphone and its preparation method |
| 07/14/2009 | US7561705 Reduction of flux leakage in a dynamic microphone |
| 07/09/2009 | WO2009084321A1 Electret capacitor microphone |
| 07/09/2009 | US20090175477 Vibration transducer |
| 07/08/2009 | CN201270586Y Electret capacitive microphone |
| 07/08/2009 | CN101478710A Silicon capacitor microphone |
| 07/08/2009 | CN100512511C Miniature device for packing silicon microphone |
| 07/02/2009 | WO2009037458A3 Mems device and process |
| 07/02/2009 | US20090169036 Electret materials, electret speakers, and methods of manufacturing the same |
| 07/02/2009 | US20090169034 Condenser microphone mountable on main pcb |
| 07/02/2009 | DE102007063344A1 Audio output stage for electrostatic flat surface loudspeaker in motor vehicle, has matching circuit including transformer and arranged between audio output stage for electrodynamic loudspeaker and electrostatic flat surface loudspeaker |
| 07/01/2009 | EP2076063A2 Ultra thin package for electric acoustic sensor chip of micro electro mechanical system |
| 07/01/2009 | CN201267015Y Capacitance microphone sound head |
| 07/01/2009 | CN101472212A Post-CMOS capacitance silicon-based micro-microphone and preparation method thereof |
| 07/01/2009 | CN100508647C Pressure gradient microphone carbon capsule |
| 06/30/2009 | US7555118 Microphone coupler for a communication device |
| 06/25/2009 | WO2009079035A1 Electrostatic speaker arrangement for a mobile device |
| 06/25/2009 | WO2009079021A1 Filter circuit for an electret microphone |
| 06/25/2009 | US20090162534 Membrane and method for the production of the same |
| 06/25/2009 | DE102007061727A1 Mikromechanisches Bauelement Micromechanical component |
| 06/24/2009 | EP2073272A1 Vibration sensor and method for manufacturing the vibration sensor |
| 06/24/2009 | CN201263216Y 麦克风 Microphone |
| 06/24/2009 | CN201263215Y Capacitor type microphone and circuit board assembly thereof |
| 06/24/2009 | CN201263214Y Microphone |
| 06/24/2009 | CN101466061A Microphone |
| 06/24/2009 | CN101466060A Electret condenser microphone |
| 06/24/2009 | CN101466059A Capacitance type microphone |
| 06/23/2009 | USRE40781 Method of providing a hydrophobic layer and condenser microphone having such a layer |
| 06/17/2009 | EP2071871A1 Sensing Membrane And Micro-Electro-Mechanical System Device Using The Same |
| 06/17/2009 | CN201260243Y Automatic adhesion microphone |
| 06/17/2009 | CN201260242Y Capacitive microphone module and encapsulation device used for automatic plaster installation |
| 06/17/2009 | CN101459866A Electric microphone module for microcomputer and manufacturing method |
| 06/17/2009 | CN100502560C Condenser microphone assembly |
| 06/16/2009 | US7548626 Detection and control of diaphragm collapse in condenser microphones |
| 06/11/2009 | WO2009073748A1 Stacked transducing devices |
| 06/11/2009 | WO2009073743A1 Capacitive micromachined ultrasonic transducer with voltage feedback |
| 06/10/2009 | DE102008057283A1 Anti-Stoßverfahren für ein Verarbeiten kapazitiver Sensorsignale Anti-shock processing method for a capacitive sensor signals |
| 06/10/2009 | DE102007058951A1 MEMS Package MEMS package |
| 06/10/2009 | CN101453683A Silicon capacitor type microphone |
| 06/10/2009 | CN101453682A A backplateless silicon microphone |
| 06/10/2009 | CN100499874C Surface mountable electret condenser microphone |
| 06/10/2009 | CN100498931C Thin film acoustic resonator and method of manufacturing resonator |
| 06/09/2009 | US7545075 Capacitive micromachined ultrasonic transducer array with through-substrate electrical connection and method of fabricating same |
| 06/04/2009 | WO2009070004A1 An electrostatic speaker system |
| 06/04/2009 | WO2009069555A1 Ultrasonic probe, and ultrasonic diagnosis device using the probe |
| 06/04/2009 | WO2009069281A1 Ultrasonic probe and ultrasonic imaging apparatus |
| 06/04/2009 | WO2006123301A3 Micro-electro-mechanical transducers |
| 06/04/2009 | WO2006123300A3 Micro-electro-mechanical transducers |
| 06/04/2009 | US20090141913 Microelectromechanical system |
| 06/04/2009 | US20090141592 Telemetric Sensing Using Micromachined Ultrasonic Transducer |
| 06/03/2009 | EP0985327B1 Flush mounted uni-directional microphone |
| 06/03/2009 | CN201252640Y Novel digital microphone |
| 06/03/2009 | CN201252639Y 麦克风 Microphone |
| 06/03/2009 | CN101448193A Capacitive microphone |
| 06/02/2009 | US7542578 Condenser microphone |
| 05/28/2009 | DE112007000845T5 Wandlermonitorsystem und Herstellverfahren für dieses Transformer monitoring system and production process for this |
| 05/27/2009 | EP2063661A1 Microphone system, sound input apparatus and method for manufacturing the same |
| 05/27/2009 | CN101444111A MEMS microphone of card type |
| 05/27/2009 | CN101443633A Capacitive mems sensor device |
| 05/27/2009 | CN101442697A Electret capacitor microphone and preparation method thereof |
| 05/26/2009 | US7537964 Method of fabricating a miniature silicon condenser microphone |
| 05/26/2009 | US7536769 Method of fabricating an acoustic transducer |
| 05/21/2009 | US20090126183 Method of fabricating a polymer-based capacitive ultrasonic transducer |
| 05/20/2009 | EP1212922B1 Method and apparatus for latency reduction in low power two way communications equipment applications in hybrid fiber coax plants |
| 05/20/2009 | CN201238610Y Environmental-protecting type non-ignitability atomizing electronic cigarette with function of cigarette substitute article |
| 05/20/2009 | CN101437188A Acoustic transducer and microphone using the same |
| 05/20/2009 | CN101437187A Stacked encapsulation structure for tapering (reducing) minitype sensor encapsulation volume |
| 05/14/2009 | US20090122651 Direct wafer bonded 2-D CUMT array |
| 05/12/2009 | US7530952 Capacitive ultrasonic transducers with isolation posts |
| 05/07/2009 | US20090116675 Mems diaphragm structure and method for forming the same |
| 05/07/2009 | DE102007014579B4 Mikrofon Microphone |
| 05/06/2009 | EP2056620A1 MEMS microphone package having sound hole in PCB |
| 05/06/2009 | CN201234345Y Microphone having shielding construction |
| 05/06/2009 | CN201234344Y 麦克风 Microphone |
| 05/06/2009 | CN201234343Y Micro capacitor type microphone shielding construction |
| 05/06/2009 | CN101427594A Electret capacitor microphone |
| 05/06/2009 | CN101427593A Single die MEMS acoustic transducer and manufacturing method |
| 05/06/2009 | CN101427592A Condenser microphone |
| 05/06/2009 | CN101427591A Condenser microphone |
| 05/06/2009 | CN101426170A Microphone manufacturing method |
| 05/06/2009 | CN101426166A Silicon microphone |
| 05/06/2009 | CN101426165A Single body construction for loudspeaker |
| 05/06/2009 | CN101426164A Electroacoustic sensing apparatus |