| Patents for H04R 19 - Electrostatic transducers (5,387) |
|---|
| 06/21/2007 | DE102005059270A1 Electro-acoustic transducer device for hearing aid device e.g. headset, has carbon nano tube- transducer and/or motor converting electrical signal into acoustic signal or vice versa, and consisting of material of carbon nano tubes |
| 06/20/2007 | CN1985543A Apparatus for suppressing radio frequency interference in a microphone assembly with preamplifier |
| 06/20/2007 | CN1984509A Electret capacity microphone |
| 06/20/2007 | CN1322588C Electro-acoustic transducer and its mfg. method, and electro-acoustic transducing using same |
| 06/19/2007 | US7233679 Microphone system for a communication device |
| 06/19/2007 | US7233675 Method of forming an electret condenser microphone |
| 06/19/2007 | US7233674 Integrated base and electret condenser microphone using the same |
| 06/19/2007 | US7233097 Rolled electroactive polymers |
| 06/14/2007 | DE102005058826A1 Lautsprechersystem Speaker system |
| 06/14/2007 | DE102005058825A1 Anzeigegerät, insbesondere Bildschirm Display device, in particular screen |
| 06/13/2007 | CN1980492A Silicon microphone package |
| 06/13/2007 | CN1321545C Echo effect output signal generator of earphone |
| 06/07/2007 | WO2007062975A1 Micromechanical structure for receiving and/or generating acoustic signals, method for producing a micromechanical structure, and use of a micromechanical structure |
| 06/07/2007 | US20070127767 Single-ended planar-magnetic speaker |
| 06/06/2007 | EP1793646A2 Loudspeaker device for sonification inside a motor vehicle |
| 06/06/2007 | EP1792517A1 Audio processing device with encapsulated electronic component. |
| 06/06/2007 | EP1305977B1 A microphone assembly |
| 06/06/2007 | DE102005058175A1 Lautsprecheranordnung zur Beschallung in einem Kraftfahrzeug Loudspeaker arrangement for sound reinforcement in a motor vehicle |
| 06/06/2007 | CN2909758Y Capacitance microphone |
| 06/06/2007 | CN1976545A Capacitor microphone assembly |
| 06/06/2007 | CN1976544A Capacitive load driving circuit, electrostatic transducer, ultrasonic speaker |
| 05/31/2007 | US20070121984 Multi-functional earphone cum microphone |
| 05/31/2007 | US20070121982 Electret assembly for a microphone having a backplate with improved charge stability |
| 05/31/2007 | US20070121967 Hearing aid with large diaphragm microphone element including a printed circuit board |
| 05/31/2007 | DE102006006704A1 Lagerungsvorrichtung zum entkoppelten Lagern einer Einrichtung Storage means for storing a decoupled device |
| 05/31/2007 | DE102005056759A1 Micromechanical structure for use as e.g. microphone, has counter units forming respective sides of structure, where counter units have respective electrodes, and closed diaphragm is arranged between counter units |
| 05/30/2007 | CN1972530A Electrostatic transducer, ultrasonic speaker, driving circuit of capacitive load |
| 05/29/2007 | US7224812 Condenser microphone and method for making the same |
| 05/29/2007 | US7224106 Electroactive polymers |
| 05/29/2007 | US7224098 Ultrasonic transducer and method of manufacturing ultrasonic transducer |
| 05/24/2007 | US20070116315 Earset microphone |
| 05/24/2007 | US20070116314 Facemask-earpiece combination |
| 05/24/2007 | DE102005055478A1 Micromechanical structure e.g. microphone, has counter unit provided between diaphragm and substrate, where cavity is formed between diaphragm and unit, and another cavity is formed between unit and substrate |
| 05/23/2007 | EP1787491A1 Silicon condenser microphone and manufacturing method |
| 05/23/2007 | CN2904539Y H ring metal cavity of electret capacitance microphone and microphone using said cavity |
| 05/23/2007 | CN1968547A 硅传声器 Silicon microphones |
| 05/23/2007 | CN1968546A Electrostatic transducer, driving circuit of capacitive load, method for setting circuit constant |
| 05/22/2007 | US7221768 Hearing aid with large diaphragm microphone element including a printed circuit board |
| 05/22/2007 | US7221767 Surface mountable transducer system |
| 05/18/2007 | WO2007055320A1 Ultrasonic probe and ultrasonographic device |
| 05/18/2007 | WO2007054071A1 Mems microphone, production method and method for installing |
| 05/18/2007 | WO2007054070A1 Mems package and method for the production thereof |
| 05/17/2007 | US20070108541 Integrated electronic microphone and a method of manufacturing |
| 05/15/2007 | US7218742 Condenser microphone assembly |
| 05/15/2007 | US7216417 Method for manufacturing an electromechanical sensor element |
| 05/10/2007 | WO2007052866A1 Electret condenser microphone including wind screen filter and external frame for building the elctret condenser microphone |
| 05/10/2007 | WO2007052835A1 Speaker, image element protective screen, case of terminal, and terminal |
| 05/09/2007 | EP1784046A2 Electret condenser microphone |
| 05/09/2007 | EP1782656A1 Integrated audio codec with silicon audio transducer |
| 05/09/2007 | CN2898887Y Cloud platform with acoustic-detection function |
| 05/09/2007 | CN1961610A Parallelepiped type directional capacitance microphone |
| 05/09/2007 | CN1961606A Acoustic transducer |
| 05/09/2007 | CN1960581A Capacitance type silicon microphone |
| 05/09/2007 | CN1960580A Encapsulation for silicon microphone suitable to mass-production |
| 05/08/2007 | US7215527 MEMS digital-to-acoustic transducer with error cancellation |
| 05/03/2007 | US20070097791 Capacitive ultrasonic transducer and method of fabricating the same |
| 05/02/2007 | EP1781067A1 CAPACITIVE MICROMACHINED ULTRASONIC TRANSDUCER (cMUT) AND ITS PRODUCTION METHOD |
| 05/02/2007 | EP1779784A1 Electrostatic capacity type ultrasonic transducer |
| 05/02/2007 | CN2896771Y Capacitor type microphone resisting radio-frequency interference |
| 05/02/2007 | CN2896770Y Anti-static-electrcity capacitor type microphone |
| 05/02/2007 | CN2896769Y Electret capacitor type microphone |
| 05/02/2007 | CN2896768Y Anti-radio-frequency-interference capacitor type microphone |
| 05/02/2007 | CN2896767Y Super-thin high-stability capacitor type microphone |
| 05/02/2007 | CN1957238A Vibration sesor |
| 04/26/2007 | WO2007046180A1 Ultrasonic transducer, ultrasonic probe and ultrasonic imaging device |
| 04/26/2007 | DE102005043664A1 Kapazitiver Schallwandler mit perforierter Dämpfungsscheibe Capacitive transducers with perforated damping disk |
| 04/25/2007 | CN2894181Y Electrostatic loudspeaker with metal bar as electrode |
| 04/24/2007 | US7208996 Charge pump circuit |
| 04/19/2007 | WO2007043729A1 Metal mesh phase delay device and condenser microphone including the same |
| 04/18/2007 | EP1775992A1 Thermostable electret condenser microphone |
| 04/18/2007 | EP1098719B1 Method of manufacturing a capacitive ultrasound transducer |
| 04/18/2007 | CN2891562Y Weatherproof outdoor test capacitor microphone |
| 04/18/2007 | CN2891561Y Microphone for conference amplifying system |
| 04/17/2007 | US7204009 Manufacturing method of acoustic sensor |
| 04/12/2007 | WO2007040211A1 Electrostatic capacity type ultrasonic oscillation device and its control method |
| 04/12/2007 | WO2007009465A3 Programmable microphone |
| 04/12/2007 | US20070082421 Miniature Silicon Condenser Microphone |
| 04/11/2007 | CN2888785Y A miniature silicon microphone |
| 04/11/2007 | CN1946249A Skin touch type capacitor vibration pickup device |
| 04/10/2007 | US7202101 Multi-metal layer MEMS structure and process for making the same |
| 04/05/2007 | WO2005099306A3 Low acceleration sensitivity microphone |
| 04/05/2007 | US20070076904 Microphone preamplifier |
| 04/04/2007 | EP1771036A2 Capacitor microphone and diaphragm therefor |
| 04/04/2007 | CN2886968Y Miniature ECM |
| 04/04/2007 | CN1942022A Capacitor microphone, diaphragm and manufacturing method thereof |
| 04/04/2007 | CN1942021A Speaker apparatus, method of manufacturing the same, and frame for the same |
| 04/03/2007 | US7199501 Electroactive polymers |
| 03/29/2007 | US20070071260 Silicon-based transducer for use in hearing instruments and listening devices |
| 03/28/2007 | EP1767051A1 Apparatus for suppressing radio frequency interference in a microphone assembly with preamplifier |
| 03/28/2007 | CN1938941A 数字传声器 Digital Microphone |
| 03/28/2007 | CN1938927A Microphine with voltage pump |
| 03/22/2007 | WO2007032582A1 Directional silicon condenser microphone |
| 03/22/2007 | WO2007032581A1 Silicon based condenser microphone |
| 03/22/2007 | WO2007032580A1 Condenser microphone and pakaging method for the same |
| 03/22/2007 | WO2007032579A1 Electret condenser microphone for surface mounting and main board including the same |
| 03/22/2007 | WO2007031270A1 Capacitive sound transducer having a perforated attenuation disc |
| 03/22/2007 | US20070065968 Fabrication of silicon microphone |
| 03/22/2007 | CA2622035A1 A capacitive sound transducer having a perforated attenuation disc |
| 03/21/2007 | EP1765035A2 Condenser microphone and packaging method for the same |
| 03/21/2007 | CN1933682A Vibrating diaphragm chip of silicon microphone and producing method thereof |