| Patents for H04R 19 - Electrostatic transducers (5,387) |
|---|
| 02/10/2010 | CN201403201Y Silicon based capacitance microphone |
| 02/10/2010 | CN201403200Y Silicon capacitance microphone |
| 02/10/2010 | CN201403199Y MEMS capacitance microphone |
| 02/10/2010 | CN201403198Y Micro-electro-mechanical system microphone |
| 02/10/2010 | CN201403197Y Capacitance-type microphone |
| 02/10/2010 | CN201403177Y Full-length dustcloth for capacitance microphone, earphone and speaker |
| 02/10/2010 | CN201400566Y Sealing structure of microcomputer electric microphone |
| 02/10/2010 | CN101646120A Capacitance microphone |
| 02/10/2010 | CN101646119A Silicon condenser microphone chip with micro-honeycomb structural vibration membrane and preparation method thereof |
| 02/10/2010 | CN101646118A Flexible actuator |
| 02/04/2010 | US20100026143 Monolithic electroactive polymers |
| 02/03/2010 | EP2150075A2 Electronic device and electro-acoustic transducer thereof |
| 02/03/2010 | CN101640834A Electronic device and microphone package piece thereof as well as mems microphone chip |
| 02/02/2010 | US7657044 Ultrasonic transducer for parametric array |
| 01/28/2010 | WO2010010643A1 Capacitance type vibration sensor |
| 01/28/2010 | WO2010009934A1 Micromechanical component with rear volume |
| 01/28/2010 | WO2009137495A3 Electrostatic loudspeaker system |
| 01/28/2010 | DE102008040597A1 Mikromechanisches Bauelement mit Rückvolumen Micromechanical component with back volume |
| 01/27/2010 | CN201393300Y Silicon microphone with insulating partition |
| 01/27/2010 | CN201393299Y Double-faced double-purpose silicon microphone with capacitances arranged in L-shape |
| 01/27/2010 | CN201393298Y Silicon microphone with conducting leading-out structural frame |
| 01/27/2010 | CN201392448Y Projecting screen and wireless projection system thereof |
| 01/27/2010 | CN100586020C Operating device for an electrical appliance and method of operating such an operating device |
| 01/26/2010 | US7651460 Totally implantable hearing system |
| 01/26/2010 | CA2392552C Electromechanic film and acoustic element |
| 01/21/2010 | WO2010008344A2 Extended sensor back volume |
| 01/21/2010 | WO2010006558A1 Miniature microphone, protection frame of miniature microphone and method for its manufacture |
| 01/20/2010 | EP2145505A1 Acoustic transducer |
| 01/14/2010 | WO2010004766A1 Mems device |
| 01/14/2010 | US20100008525 Acoustic Actuator Plate Structure |
| 01/14/2010 | DE102009016487A1 Sensormodul und Halbleiterchip Sensor module and semiconductor chip |
| 01/13/2010 | CN201383873Y Silicon condenser microphone with enlarged back cavity |
| 01/13/2010 | CN201383872Y Separator of condenser microphone |
| 01/13/2010 | CN100581295C SMD type biased condenser microphone |
| 01/13/2010 | CN100581032C Microphine with voltage pump |
| 01/07/2010 | WO2010001388A1 A mems device comprising oscillations' measurements means |
| 01/07/2010 | US20100002543 Micromechanical Structure for Receiving and/or Generating Acoustic Signals, Method for Producing a Micromechnical Structure, and Use of a Micromechanical Structure |
| 01/06/2010 | CN201378872Y Condenser microphone device |
| 01/06/2010 | CN201378871Y Pole head of condenser microphone |
| 01/06/2010 | CN201378866Y Wireless portable microphone |
| 01/06/2010 | CN100579294C SMD possible directional condenser microphone |
| 01/05/2010 | US7642575 Integrated electronic microphone having a perforated rigid back plate membrane |
| 12/31/2009 | DE102009019029A1 Sensormodul Sensor module |
| 12/30/2009 | WO2009157122A1 Mems device, mems device module and acoustic transducer |
| 12/30/2009 | WO2009000922A8 Electrostatic thin-film sound transducer, and method for the production thereof |
| 12/30/2009 | EP2138010A2 Mems microphone |
| 12/30/2009 | CN101616353A Flexible electroacoustic combination structure, loudspeaker and manufacturing method thereof |
| 12/30/2009 | CN100576950C Electret capacitor microphone |
| 12/24/2009 | US20090316935 Digital microphone |
| 12/23/2009 | WO2009154981A2 Mems microphone array on a chip |
| 12/23/2009 | WO2009154067A1 Digital speaker driving device |
| 12/23/2009 | WO2009154015A1 Method for inspecting semiconductor device |
| 12/23/2009 | CN201369824Y Silicon substrate capacitance-type microphone |
| 12/23/2009 | CN201369823Y Double sides welding silicon microphone |
| 12/23/2009 | CN201369822Y Energy converter |
| 12/23/2009 | CN201369821Y Microphone |
| 12/23/2009 | CN101611634A MEMS microphone device |
| 12/17/2009 | US20090310810 Mems microphone package with rf insensitive mems microphone chip |
| 12/16/2009 | EP2132955A1 Small-footprint microphone module with signal processing functionality |
| 12/16/2009 | CN201365340Y Self-detection silicon micromachine capacitance microphone |
| 12/16/2009 | CN201364739Y Audio player |
| 12/16/2009 | CN201364162Y Sensor based on power supplying of electromagnetic field |
| 12/16/2009 | CN101602479A Capacitive sensing device and manufacture method thereof |
| 12/16/2009 | CN101602478A Micro electromechanical encapsulating structure |
| 12/15/2009 | US7633156 Acoustic transducer module |
| 12/10/2009 | WO2009147848A1 Neutralizer, method for electretizing microphone by using same, and electretizing device |
| 12/10/2009 | US20090304212 Flexible electret transducer assembly, speaker, and method for fabricating flexible electret transducer assembly |
| 12/09/2009 | EP2130018A1 Capacitive electroacoustic transducer and microphone |
| 12/09/2009 | CN201360349Y Silicon capacitance microphone |
| 12/08/2009 | US7630506 Condenser microphone unit |
| 12/02/2009 | EP2128878A1 Electret and electrostatic induction conversion device comprising the same |
| 12/02/2009 | EP2127468A1 Loudspeaker made from films |
| 12/02/2009 | CN201355867Y Silicon-based condenser microphone |
| 12/02/2009 | CN201355866Y Condenser microphone |
| 12/02/2009 | CN101594567A Diaphragm for condenser microphone, method for manufacturing the same, and condenser microphone |
| 12/02/2009 | CN100566140C Microphone preamplifier |
| 12/01/2009 | US7626891 Capacitive ultrasonic transducer and method of fabricating the same |
| 11/26/2009 | WO2009107940A3 Stacked microphone with signal processing block and method for manufacturing same |
| 11/26/2009 | US20090290741 Wind immune microphone |
| 11/25/2009 | EP2121302A1 Acoustic actuator plate structure |
| 11/25/2009 | CN101589543A Micro-electro-mechanical transducers |
| 11/25/2009 | CN101588529A Silica-based condenser microphone and production method thereof |
| 11/25/2009 | CN100562954C Electret polarizing method |
| 11/19/2009 | WO2009139400A1 Ultrasonic probe, method for manufacturing the same and ultrasonic diagnostic device |
| 11/19/2009 | WO2009138136A1 Acoustic-electric transducer with adjustable air gap, electronic device, method & computer program product |
| 11/19/2009 | US20090285419 Microelectromechanical system microphone |
| 11/18/2009 | CN101584226A Microphone with pressure relief |
| 11/18/2009 | CN101580222A Micro electromechanical component and manufacturing method thereof |
| 11/17/2009 | US7620192 Electret covered with an insulated film and an electret condenser having the electret |
| 11/12/2009 | WO2009137495A2 Electrostatic speaker systems and methods |
| 11/12/2009 | WO2009135815A1 Fast precision charge pump |
| 11/12/2009 | WO2009077917A3 Mems microphone |
| 11/11/2009 | EP2116101A1 Stray capacitance reduced condenser microphone |
| 11/11/2009 | EP1254586B1 Acoustical transducer with reduced parasitic capacitance and method of manufacturing same |
| 11/11/2009 | CN201345735Y 传声器 Microphone |
| 11/11/2009 | CN201345734Y Silica-based microphone |
| 11/11/2009 | CN201345733Y 麦克风 Microphone |
| 11/11/2009 | CN201345732Y Capacitive electret microphone |
| 11/11/2009 | CN201345731Y 驻极体电容传声器 Electret condenser microphone |
| 11/11/2009 | CN201345730Y Electret condenser microphone |