| Patents for H04R 19 - Electrostatic transducers (5,387) |
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| 02/11/2009 | EP1644639B1 Device for generating sound by means of a medium stream generated |
| 02/11/2009 | EP1466500B1 Silicon microphone |
| 02/11/2009 | CN101365258A Capacitor microphone |
| 02/11/2009 | CN101365257A Combined insulation film ring for minimized microphone and manufacturing method thereof |
| 02/11/2009 | CN100461976C Micro-capacitor type microphone system and manufacturing method thereof |
| 02/10/2009 | US7489791 A/D converter with integrated biasing for a microphone |
| 02/10/2009 | US7489785 Noise cancellation system and headphone therefor |
| 02/10/2009 | US7489593 Electrostatic membranes for sensors, ultrasonic transducers incorporating such membranes, and manufacturing methods therefor |
| 02/09/2009 | CA2638431A1 Sound transducer for the transmission of audio signals |
| 02/05/2009 | WO2009016587A1 Electro-acoustic transducer comprising a mems sensor |
| 02/05/2009 | WO2007081584A8 Electrostatic loudspeaker systems and methods |
| 02/05/2009 | US20090034773 Mems microphone package |
| 02/05/2009 | US20090034761 Electrostatic speaker |
| 02/04/2009 | EP2019812A1 Method for producing a micromechanical component, and micromechanical component |
| 02/04/2009 | CN101360354A Electronic component, fabrication method for the same and electronic device having the same |
| 02/04/2009 | CN101360353A Minimized microphone |
| 02/04/2009 | CN101360352A Miniature microphone having shielding construction and manufacturing method for circuit board frame |
| 01/29/2009 | WO2009014118A1 Mems sensor, and mems sensor manufacturing method |
| 01/28/2009 | EP2019298A1 Mechanical-electrical converting device and its manufacturing method |
| 01/28/2009 | EP1232669B1 Electromechanic film and acoustic element |
| 01/28/2009 | EP1226741B1 Acoustic element |
| 01/28/2009 | CN201188690Y Capacitance microphone |
| 01/28/2009 | CN201188689Y Capacitance microphone |
| 01/28/2009 | CN101356853A Integrated microphone |
| 01/28/2009 | CN101356852A Electrostatic loudspeaker systems and methods |
| 01/28/2009 | CN101355828A Integrating method for integrated circuit base on SOI silicon chip and capacitance type micro-silicon microphone single slice as well as chip |
| 01/28/2009 | CN101355827A Integrated preparation method for integrated circuit and capacitance type micro-silicon microphone single slice as well as chip |
| 01/28/2009 | CN101353153A MEMS sensor and manufacturing method thereof |
| 01/28/2009 | CN101353152A MEMS sensor and manufacturing method thereof |
| 01/28/2009 | CN101353151A MEMS sensor and silicon microphone |
| 01/22/2009 | US20090022350 Acoustic Vibration Sensor |
| 01/21/2009 | CN201185478Y Miniature capacitor microphone |
| 01/21/2009 | CN101351401A Process of forming a microphone using support member |
| 01/21/2009 | CN100455142C Capacitance type sound sensor in micro mechanical and electrical structure |
| 01/15/2009 | WO2009008282A1 Ultrasonic probe, and ultrasonic diagnosing device |
| 01/15/2009 | US20090016552 Electrostatic Loudspeakers |
| 01/14/2009 | CN201182009Y Silicon capacitor microphone with appended back tone chamber and sound hole in PCB |
| 01/14/2009 | CN201182008Y Sound recording circuit aiming at household dynamic microphone |
| 01/14/2009 | CN101346015A Electrostatic electroacoustic transducers |
| 01/14/2009 | CN101346014A Micro electro-mechanical system microphone and preparation method thereof |
| 01/08/2009 | US20090010472 Acoustical grille free from spit moisture maintains frequency to keep realistic and natural sounds |
| 01/07/2009 | EP1911326A4 Electrostatic loudspeaker stators and their manufacture |
| 01/07/2009 | CN201178492Y Electric microphone apparatus of micro-computer |
| 01/07/2009 | CN101340740A Uni-directional microphone |
| 01/07/2009 | CN101340739A Integrated specialized electret microphone amplifier |
| 01/06/2009 | US7473572 Micromechanical sensors and methods of manufacturing same |
| 01/02/2009 | DE102007029911A1 Akustisches Sensorelement Acoustic sensor element |
| 12/31/2008 | WO2009001488A1 Diaphragm structure and acoustic sensor |
| 12/31/2008 | WO2009000922A1 Electrostatic thin-film sound transducer, and method for the production thereof |
| 12/31/2008 | WO2009000641A1 Sonic sensor element |
| 12/31/2008 | WO2008134530A3 A capacitive microphone with integrated cavity |
| 12/31/2008 | WO2007115304A3 Monitor transducer system and manufacturing method thereof |
| 12/31/2008 | EP2009952A2 Condenser microphone |
| 12/31/2008 | EP2009951A1 Electret capacitor microphone |
| 12/31/2008 | EP2009950A1 Electrostatic transducer and method for its production |
| 12/31/2008 | EP2008497A1 Method for production of a micromechanical component |
| 12/31/2008 | CN201174250Y Audio playing apparatus |
| 12/31/2008 | CN101336010A Capacitance type transmitter |
| 12/30/2008 | CA2334640C A method of manufacturing a transducer having a diaphragm with a predetermined tension |
| 12/24/2008 | EP2005789A1 Single die mems acoustic transducer and manufacturing method |
| 12/24/2008 | CN101330775A Method for integrating washer and back pole as well as method for assembling microphone |
| 12/24/2008 | CN100446628C Capacitor type microphone and micro-electromechanical processing and manufacturing method thereof |
| 12/23/2008 | US7468575 Electroactive polymer electrodes |
| 12/18/2008 | US20080310662 Earpiece snoring sound transmitter |
| 12/18/2008 | US20080310657 Electret condenser microphone |
| 12/17/2008 | CN201167416Y Electret capacitance microphone with integral vocal cavity element |
| 12/17/2008 | CN201167415Y Electret microphone capable of adapting rapid automatic test |
| 12/17/2008 | CN201167414Y Miniature capacitance microphone |
| 12/17/2008 | CN101325820A Microphone package adapted to semiconductor device and manufacturing method therefor |
| 12/16/2008 | US7466835 Miniature microphone with balanced termination |
| 12/16/2008 | US7466834 Electret condenser microphone |
| 12/11/2008 | WO2008150063A1 Condenser microphone |
| 12/11/2008 | WO2008149571A1 Acoustic sensor |
| 12/11/2008 | WO2008149570A1 Acoustic sensor |
| 12/11/2008 | US20080304681 Microphone with Aligned Apertures |
| 12/11/2008 | DE102008007682A1 Modul mit einem Mikro-Elektromechanischen Mikrofon Module with a micro-electro-mechanical microphone |
| 12/10/2008 | EP2001262A2 Capacitor microphone |
| 12/10/2008 | CN201163820Y Capacitor type microphone chip |
| 12/10/2008 | CN101321413A Condenser type microphone |
| 12/10/2008 | CN101321412A Miniature microphone |
| 12/10/2008 | CN101321408A Internal rotation beam diaphragm and microphone chip composed by the same |
| 12/10/2008 | CN101321407A Girder-type diaphragm and microphone chip composed by the same |
| 12/04/2008 | WO2008146600A1 Ultrasonic probe and ultrasonic diagnosis device |
| 12/03/2008 | EP1997347A1 Mems device |
| 12/03/2008 | EP1996507A2 Method for fabricating a mems microphone |
| 12/03/2008 | CN201160322Y Dustproof microphone |
| 11/27/2008 | DE102008022588A1 Externally polarized condenser microphone i.e. high-quality sound receiver, for use in e.g. professional studio technology, has control amplifier separated from buffer amplifier to compare capsule voltage with preset reference value |
| 11/26/2008 | CN201156824Y Electret microphone |
| 11/26/2008 | CN201156823Y Novel microphone |
| 11/26/2008 | CN101312601A Electret capacitor microphone |
| 11/26/2008 | CN100438704C Electret condenser microphone and mfg. method |
| 11/25/2008 | US7457427 Dual microphone assembly for mask |
| 11/20/2008 | US20080285784 Package structure of a microphone |
| 11/20/2008 | US20080285778 Screen-Integrated Speaker |
| 11/20/2008 | US20080285777 Parametric audio system |
| 11/20/2008 | DE102007023474A1 Method for manufacturing formed component with integrated electrostatic surface loudspeaker, involves manufacturing auxiliary tube as carrier, made of plastic by form |
| 11/19/2008 | EP1992290A1 Ultrasonic vibrator and body cavity ultrasonograph having the ultrasonic vibrator |
| 11/19/2008 | EP1992192A1 Sound sponge for loudspeakers |
| 11/19/2008 | CN201153325Y Silicon capacitor microphone |
| 11/13/2008 | WO2008134909A1 Acoustic transducer |