| Patents for H04R 19 - Electrostatic transducers (5,387) |
|---|
| 04/19/2006 | EP1648194A1 Material for heat-resistant electret and heat-resistant electret |
| 04/19/2006 | EP1123634A4 Parametric loudspeaker with electro-acoustical diaphragm transducer |
| 04/19/2006 | EP1077015A4 Sonic emitter with foam stator |
| 04/19/2006 | CN1761365A Condenser microphone |
| 04/19/2006 | CN1761364A Electret condenser microphone |
| 04/18/2006 | US7031480 Electret condenser microphone |
| 04/12/2006 | EP1645162A1 Electromechanical transducer and a manufacturing method |
| 04/12/2006 | EP1644639A1 Device for generating a medium stream, for use as a pump or as a miniaturized loudspeaker |
| 04/12/2006 | EP1525775B1 One-magnet rectangular transducer |
| 04/12/2006 | CN2772171Y Electret microphone |
| 04/06/2006 | US20060072770 Electrostatic ultrasonic transducer and ultrasonic speaker |
| 04/06/2006 | DE102004048990A1 Lautsprecheranordnung in einem Kraftfahrzeug Speaker arrangement in a motor vehicle |
| 04/06/2006 | DE102004048988A1 Acoustic communication and/or perception device for use in motor vehicle, has control unit for controlling loudspeaker and microphone that are designed as adjustable microphone and loudspeaker, respectively |
| 04/05/2006 | CN1757261A Electret condenser microphone |
| 04/05/2006 | CN1756443A Microphone comprising two pressure-gradient capsules |
| 04/05/2006 | CN1250036C Capacitor type mic structure |
| 04/05/2006 | CN1249744C Multi-layer electret with ultra-high charge stability and mfg. method thereof |
| 04/04/2006 | US7023066 Silicon microphone |
| 03/30/2006 | WO2006033269A1 Signal amplifying circuit and acceleration sensor having the same |
| 03/29/2006 | CN1753576A Electrostatic ultrasonic transducer and ultrasonic speaker |
| 03/29/2006 | CN1248543C Electro-acoustic converter |
| 03/28/2006 | US7019955 MEMS digital-to-acoustic transducer with error cancellation |
| 03/23/2006 | WO2006029970A1 Audio processing device with encapsulated electronic component. |
| 03/22/2006 | EP1638366A1 A microphone assembly |
| 03/22/2006 | EP1414738B1 Micro-machined ultrasonic transducer (mut) substrate that limits the lateral propagation of acoustic energy |
| 03/22/2006 | EP1310136B1 Miniature broadband transducer |
| 03/22/2006 | CN1750716A Supersonic transducer,supersonic speaker,acoustic system and method for control supersonic transducer |
| 03/21/2006 | US7016262 Seismic sensor |
| 03/16/2006 | DE102005040081A1 Ultraschallsensor Ultrasonic sensor |
| 03/15/2006 | EP1635608A1 Sound detection mechanism |
| 03/15/2006 | CN1748441A Smd possible directional condenser microphone |
| 03/09/2006 | WO2006025211A1 Electret capacitor microphone |
| 03/09/2006 | US20060050905 Sound detecting mechanism and process for manufacturing the same |
| 03/08/2006 | EP1632105A1 Fabrication of silicon microphones |
| 03/08/2006 | CN1245047C Electret condenser microphone |
| 03/02/2006 | WO2006023016A1 Silicon condenser microphone and manufacturing method |
| 03/02/2006 | WO2006022141A1 Function element, method of producing the element, electronic apparatus using the element, and method of producing the apparatus |
| 03/01/2006 | EP1631116A1 Sound detecting mechanism and process for manufacturing the same |
| 03/01/2006 | CN1741685A Detection and control of diaphragm collapse in condenser microphones |
| 03/01/2006 | CN1741684A Electret capacitor microphone |
| 02/23/2006 | CA2576520A1 Integrated audio codec with silicon audio transducer |
| 02/22/2006 | CN1738489A Floating gate electret capacitance microphone |
| 02/14/2006 | US6999596 Capacitor sensor |
| 02/09/2006 | WO2006013940A1 Thermostable electret condenser microphone |
| 02/09/2006 | WO2006013717A1 Capacitive micromachined ultrasonic transducer and method for manufacturing same |
| 02/08/2006 | EP1623601A1 Method and apparatus for substantially improving power supply rejection performance in a miniature microphone assembly |
| 02/01/2006 | CN1728888A Acoustic sensor |
| 01/26/2006 | WO2006010102A1 Apparatus for suppressing radio frequency interference in a microphone assembly with preamplifier |
| 01/26/2006 | WO2005086532A3 Packaged acoustic and electromagnetic transducer chips |
| 01/25/2006 | CN1239005C Electret capacitance microphone and making method thereof |
| 01/19/2006 | US20060013427 Stable attachment microphone stand systems |
| 01/18/2006 | CN1723738A Vibrator unit and portable telephone employing it |
| 01/17/2006 | US6987859 Raised microstructure of silicon based device |
| 01/12/2006 | US20060008105 Apparatus for suppressing radio frequency interference in a microphone assembly with preamplifier |
| 01/12/2006 | US20060008097 Detection and control of diaphragm collapse in condenser microphones |
| 01/12/2006 | US20060006483 Silicon microphone |
| 01/12/2006 | DE102004030748A1 Elektro-akustischer Backelektret-Wandler Electro-acoustic transducer Backelektret |
| 01/12/2006 | DE102004011145B4 Microphone e.g. semiconductor-condenser microphone, for use in mobile phone, has membrane structure with boundary region, which is not movable due to pressure, on which carrier is attached, where region and opposing structure have recesses |
| 01/11/2006 | EP1614324A1 Condenser microphone employing wide band stop filter and having improved resistance to electrostatic discharge |
| 01/10/2006 | US6985597 Variable directional capacitor microphone comprising elastic acoustic resisting member |
| 01/04/2006 | CN1717123A Capactance speaker |
| 01/04/2006 | CN1717122A Directionality capacitance microphone of improved orientation property |
| 12/29/2005 | DE102004027111A1 Akustischer Wandler An acoustic transducer |
| 12/28/2005 | EP1247350A4 Parametric audio system |
| 12/22/2005 | WO2005122638A1 Ultrasonic transducer and ultrasonic speaker using the same |
| 12/22/2005 | WO2005120355A1 Electrostatic capacity type ultrasonic transducer |
| 12/21/2005 | CN1233198C Electret capacitor microphone and making method |
| 12/21/2005 | CN1233197C Electroacoustic transducer |
| 12/20/2005 | US6978029 Condenser microphone apparatus and its connecting apparatus |
| 12/15/2005 | WO2005120130A1 Electrostatic capacity type ultrasonic vibrator, manufacturing method thereof, and electrostatic capacity type ultrasonic probe |
| 12/15/2005 | WO2005120128A2 Method of detecting and deterring microphone sabotage |
| 12/15/2005 | WO2005120125A1 Acoustic transducer |
| 12/15/2005 | US20050276429 Electret condenser microphone |
| 12/15/2005 | DE102004024729A1 Kondensatormikrofon Condenser microphone |
| 12/13/2005 | US6975736 Microphone |
| 12/08/2005 | US20050269899 Ultrasonic transducer and method of manufacturing ultrasonic transducer |
| 12/07/2005 | EP1602135A2 Rolled electroactive polymers |
| 12/07/2005 | CN1706219A Holder kit for directional condenser microphone |
| 12/07/2005 | CN1706218A A condenser microphone mountable on main PCB |
| 12/07/2005 | CN1706217A A parallelepiped type condenser microphone for SMD |
| 12/07/2005 | CN1706216A Parallelepiped condenser microphone |
| 12/07/2005 | CN1706215A ESD protection circuit for condenser microphone |
| 12/07/2005 | CN1705407A Single-crystal silicon micro-machinery manufactured capacitor type microphone and method for manufacturing same |
| 12/07/2005 | CN1704177A Ultrasonic transducer and method of manufacturing ultrasonic transducer |
| 12/01/2005 | WO2005115052A1 Capacitor microphone |
| 12/01/2005 | US20050265571 Method of detecting and deterring microphone sabotage |
| 12/01/2005 | US20050262947 Pressure sensor and method for operating a pressure sensor |
| 11/30/2005 | EP1600037A1 Electret condenser microphone |
| 11/30/2005 | CN1703932A Membrane and method for the production of the same |
| 11/24/2005 | WO2005111555A1 Vibration sesor |
| 11/24/2005 | US20050261544 Totally implantable hearing system |
| 11/24/2005 | US20050261039 Condenser microphone |
| 11/24/2005 | US20050259835 Condenser microphone |
| 11/23/2005 | EP1599067A2 Detection and control of diaphragm collapse in condenser microphones |
| 11/17/2005 | US20050254679 Condenser microphone |
| 11/17/2005 | US20050254673 High performance MEMS thin-film teflon electret microphone |
| 11/17/2005 | US20050254671 Condenser microphone |
| 11/17/2005 | US20050254670 Condenser microphone |
| 11/17/2005 | US20050251995 Manufacturing method of acoustic sensor |
| 11/16/2005 | EP1596629A2 Electronic module for implantable hearing aid |