| Patents for H04R 19 - Electrostatic transducers (5,387) |
|---|
| 01/16/2008 | CN101106839A Pressure sensor and manufacturing method therefor |
| 01/10/2008 | US20080008347 Acoustic Transducer |
| 01/10/2008 | DE102004027111B4 Akustischer Wandler An acoustic transducer |
| 01/09/2008 | EP1875774A1 Directional silicon condenser microphone having additional back chamber |
| 01/09/2008 | EP1875773A1 Silicon condenser microphone having additional back chamber and sound hole in pcb |
| 01/09/2008 | EP1875772A1 Electret condenser microphone and manufacturing method thereof |
| 01/09/2008 | EP1875770A1 Acoustic transducer module |
| 01/09/2008 | EP1874678A1 Mems sensor comprising a deformation-free back electrode |
| 01/09/2008 | CN201004714Y Micro electronic vibration tone picker |
| 01/09/2008 | CN201004713Y Single film capacitance speaker chip |
| 01/09/2008 | CN101102622A Making method for vibration film assembly and capacitance microphone |
| 01/03/2008 | WO2008001824A1 Chip for capacitor microphone, capacitor microphone, and method for manufacturing the same |
| 01/03/2008 | US20080002837 Variable directional condenser microphone unit |
| 01/02/2008 | EP1874087A1 Electret condenser microphone |
| 01/02/2008 | CN101098569A Semiconductor microphone chip |
| 12/27/2007 | WO2007147643A2 Nano-microphone or pressure sensor |
| 12/27/2007 | WO2004058054A3 Transducer for sensing body sounds |
| 12/27/2007 | US20070297636 High Performance Microphone and Manufacturing Method Thereof |
| 12/27/2007 | US20070297631 Comb sense microphone |
| 12/27/2007 | DE10221660B4 Verfahren zur Herstellung eines mikromechanischen, kapazitiven Wandlers Process for producing a micromechanical capacitive transducer |
| 12/26/2007 | CN101094540A Miniature acoustic transducer |
| 12/21/2007 | WO2007081584A3 Electrostatic loudspeaker systems and methods |
| 12/20/2007 | DE102006049543A1 Lautsprecheranordnung zur gerichteten Beschallung eines Kraftfahrzeugsitzes Loudspeaker arrangement for direct sound of a motor vehicle seat |
| 12/13/2007 | WO2007142383A1 Condenser microphone for smd using sealing pad and method of making the same |
| 12/13/2007 | US20070287918 Separate cmuts for reception and transmission |
| 12/13/2007 | US20070286445 Microphone Assembly with Preamplifier and Manufacturing Method Thereof |
| 12/13/2007 | US20070286438 Condenser microphone |
| 12/13/2007 | US20070286437 Surface mountable transducer system |
| 12/12/2007 | EP1574112B1 Silicon-based transducer for use in hearing instruments |
| 12/12/2007 | EP1212800B1 Electroactive polymer generators |
| 12/06/2007 | WO2007137893A1 Micromechanic component and method for the production thereof |
| 12/05/2007 | CN200987216Y Microphone using frequency modulation system |
| 11/29/2007 | US20070273249 Sonic Or Ultrasonic Transducer |
| 11/29/2007 | DE102007019321A1 Elektret-Kondensatormikrofon und Verfahren zum Herstellen desselben Of the same electret-condenser microphone and methods for preparing |
| 11/29/2007 | DE102006024671A1 Micromechanical unit for e.g. monitoring e.g. tire pressure, has diaphragm and seismic mass arranged at distance from each other and arranged one above other, where seismic mass is movable parallel to layer levels |
| 11/29/2007 | DE102006024668A1 Micromechanical component e.g. sensor, for e.g. hearing aid`s microphone, has counter unit with passage hole in rear volume formed by hollow space below unit, where hollow space contacts upper side of membrane below counter unit via opening |
| 11/28/2007 | EP1860913A2 Electrostatic speaker |
| 11/28/2007 | EP1860694A1 Semiconductor device, semiconductor device manufacturing method and cover frame |
| 11/28/2007 | EP1267710B1 Sensor system for monitoring the condition of a person and method for its manufacture |
| 11/28/2007 | CN200983677Y Silicon crystal capacitance microphone |
| 11/28/2007 | CN101080109A Front pole capacitance microphone |
| 11/27/2007 | US7302073 Method of detecting and deterring microphone sabotage |
| 11/22/2007 | WO2007132422A1 Capacitive mems sensor device |
| 11/22/2007 | WO2007131836A1 Method for producing a micromechanical component, and micromechanical component |
| 11/22/2007 | US20070269059 Microphone |
| 11/22/2007 | DE102006022379A1 Micromechanical pressure transducer for capacitive microelectromechanical system microphone, has substrate-sided cavity forming back volume for movable membrane, and resting at application-specific integrated circuit chip |
| 11/22/2007 | DE102006022378A1 Verfahren zur Herstellung eines mikromechanischen Bauelements und mikromechanisches Bauelement A process for producing a micromechanical component and micromechanical component |
| 11/22/2007 | DE102006022377A1 Micro-mechanical device for use as e.g. micro-mechanical actuator, has membrane with membrane plane, and electrodes that run perpendicular to membrane plane and are provided in suspension area |
| 11/21/2007 | CN200980163Y An assembled capacitance type microphone |
| 11/21/2007 | CN200980162Y An integration electrode plate component for electrostatic loudspeaker |
| 11/21/2007 | CN101076206A Capacity sound-transmitter vibration diaphragm and its capacity sound transmitter |
| 11/21/2007 | CN100350257C Potential fixing device, potential fixing method, and capacitance measuring instrument |
| 11/20/2007 | US7298856 Chip microphone and method of making same |
| 11/15/2007 | WO2007129788A1 Directional silicon condenser microphone having additional back chamber |
| 11/15/2007 | WO2007129787A1 Silicon condenser microphone having additional back chamber and sound hole in pcb |
| 11/15/2007 | WO2007129507A1 Card mems microphone |
| 11/14/2007 | CN101071683A Electret polarizing method |
| 11/13/2007 | US7295675 Phantom powered capacitor microphone and a method of using a vacuum tube in the same |
| 11/13/2007 | US7293463 Acoustoelectric conversion device |
| 11/08/2007 | WO2007126179A1 Silicon condenser microphone having additional back chamber |
| 11/08/2007 | WO2007125985A1 Mechanical-electrical converting device and its manufacturing method |
| 11/08/2007 | US20070258332 Multi-level capacitive ultrasonic transducer |
| 11/06/2007 | US7292696 Electret capacitor microphone |
| 11/01/2007 | WO2007123293A1 Packaging structure of mems microphone |
| 11/01/2007 | WO2007123038A1 Electret capacitor microphone |
| 10/31/2007 | CN200969680Y Anti-jamming microphone |
| 10/31/2007 | CN200969679Y Electret microphone |
| 10/31/2007 | CN101064971A Electret condenser microphone and method of producing the same |
| 10/31/2007 | CN101064970A No-cutting manufacture method for producing wafer of capacitance silicon micro-microphone |
| 10/31/2007 | CN101064969A Method for producing diaphragm of capacitance microphone element |
| 10/30/2007 | US7289638 Electroacoustic microphone |
| 10/30/2007 | US7287327 Electret capacitor microphone and method for producing the same |
| 10/25/2007 | WO2007119570A1 Capacitor microphone |
| 10/24/2007 | EP1848046A2 Electroactive polymers |
| 10/24/2007 | CN200966155Y 改良的传声器电连接装置 Improved microphone electrical connection means |
| 10/24/2007 | CN101061749A Hybrid speaker |
| 10/24/2007 | CN101060726A A method for manufacturing the ringing membrane of capacitance microphone element |
| 10/23/2007 | US7286680 Cylindrical microphone having an electret assembly in the end cover |
| 10/23/2007 | US7284431 Geophone |
| 10/18/2007 | WO2007117198A1 Microelectromechanical pressure sensor with integrated circuit and method of manufacturing such |
| 10/18/2007 | WO2007115914A1 Method for production of a micromechanical component |
| 10/18/2007 | WO2007115358A1 An electrostatic loudspeaker |
| 10/18/2007 | WO2007115350A1 An electrostatic loudspeaker |
| 10/18/2007 | WO2007115349A1 An electrostatic loudspeaker |
| 10/18/2007 | WO2007115348A1 An electrostatic loudspeaker and stator |
| 10/18/2007 | US20070242847 Capacitor Microphone |
| 10/18/2007 | US20070242843 Ultrasonic Transducer and Ultrasonic Speaker Using the Same |
| 10/18/2007 | US20070242840 Condenser Microphone |
| 10/18/2007 | DE102006001493B4 MEMS-Sensor und Verfahren zur Herstellung MEMS sensor and methods for preparing |
| 10/17/2007 | CN200962670Y Square structure electret capacitance speaker |
| 10/14/2007 | CA2844996A1 Electrostatic loudspeaker capable of dispersing sound both horizontally and vertically |
| 10/14/2007 | CA2584602A1 Electrostatic loudspeaker capable of dispersing sound both horizontally and vertically |
| 10/11/2007 | WO2007115304A2 Monitor transducer system and manufacturing method thereof |
| 10/11/2007 | WO2007112743A1 Single die mems acoustic transducer and manufacturing method |
| 10/11/2007 | WO2007078989A3 Process of forming a microphone using support member |
| 10/11/2007 | WO2007010421A3 Mems microphone and package |
| 10/10/2007 | EP1843631A2 Electretization method and apparatus |
| 10/10/2007 | EP1843626A2 Semiconductor electret capacitor microphone |
| 10/10/2007 | CN101053279A 指向性硅电容传声器 Directional silicon condenser microphone |
| 10/03/2007 | CN200956661Y Waterproof moisture-proof electret condenser microphone |