Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 19 - Electrostatic transducers
Patents for H04R 19 - Electrostatic transducers (5,387)
11/2005
11/16/2005EP1596628A1 Microphone
11/10/2005DE102004011149B3 Mikrophon und Verfahren zur Herstellung eines Mikrophons Microphone and method of manufacturing a microphone
11/10/2005DE102004011148B3 Microphone esp. semiconductor capacitor microphone for use in mobile telephones and the like having space between chip and substrate in pressure communication with space between chip and cover
11/09/2005CN1694576A One-chip silicon-base miniature capacitor microphone and manufacturing method thereof
11/09/2005CN1694575A Capacitor silcion-base microphone and its manufacturing method
11/03/2005WO2005104616A1 Electret capacitor microphone
11/03/2005WO2005104603A1 Microphone assembly with preamplifier and manufacturing method thereof
11/03/2005US20050241944 Membrane and method for the production of the same
11/03/2005US20050241398 Acoustoelectric conversion device
11/02/2005CN2738507Y Micro-capacitance microphone system
11/01/2005US6961437 Capacitor microphone
10/2005
10/27/2005WO2005101902A1 Esd protection circuit for condenser microphone
10/27/2005WO2005069681A8 A condenser microphone mountable on main pcb
10/27/2005US20050239305 Microphone connector
10/20/2005WO2005099306A2 Low acceleration sensitivity microphone
10/19/2005CN2735701Y A single-direction capacitor microphone
10/19/2005CN2735700Y Edge type apertured back plane
10/19/2005CN1684546A Microsilicon microphone and its preparing method
10/12/2005EP1585365A1 Polarization voltage setting of microphones
10/12/2005EP1585360A1 Power supply of phantom power supplied microphones
10/12/2005EP1585359A1 Remote control of phantom power supplied microphones
10/06/2005WO2005094123A1 Totally implantable hearing system
10/06/2005DE102004017773A1 Rahmen für ein Lautsprechermodul, Lautsprechermodul darauf, und elektronische Vorrichtung mit Lautsprechermodul Framework for a speaker module, speaker module out and electronic device with speaker module
10/06/2005DE102004011145A1 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
10/06/2005DE102004011144A1 Drucksensor und Verfahren zum Betreiben eines Drucksensors Pressure sensor and method of operating a pressure sensor
10/05/2005CN2731891Y Rotating curved face mic
10/05/2005CN1678136A Power supply of phantom power supplied microphones
10/05/2005CN1678135A Remote control of phantom power supplied microphones
10/05/2005CN1678134A Polarization voltage setting of microphones
09/2005
09/29/2005US20050213788 Acoustically active element formed in a multi-layer circuit-board structure, a method for forming acoustically active element in a multi-layer circuit-board structure, and a multi-layer circuit-board structure
09/29/2005US20050213787 Microphone assembly with preamplifier and manufacturing method thereof
09/29/2005US20050213781 Charge pump circuit
09/29/2005US20050213773 Noise cancellation system and headphone therefor
09/28/2005CN1674444A 电荷泵电路 The charge pump circuit
09/27/2005US6950529 System consisting of a microphone and an amplifier
09/22/2005US20050207605 Microphone and method of producing a microphone
09/22/2005US20050207604 Microphone device
09/22/2005US20050207596 Packaged digital microphone device with auxiliary line-in function
09/22/2005US20050205350 [speaker module frame, speaker module therewith, and electronic device with speaker module]
09/22/2005DE102004009644A1 Schallintensitätsdetektor sowie Verfahren zum Messen der Schallintensität Sound intensity detector as well as methods for measuring the sound intensity
09/21/2005CN1672456A Surface mountable electret condenser microphone
09/21/2005CN1671252A High-performance capacitor microphone and its manufacturing method
09/21/2005CN1671247A Microphone device
09/20/2005US6947568 Condenser microphone
09/15/2005WO2005086535A1 Electret capacitor microphone
09/15/2005WO2005086534A1 Electret capacitor microphone unit
09/15/2005WO2005086533A1 Electret capacitor microphone
09/15/2005WO2005086532A2 Packaged acoustic and electromagnetic transducer chips
09/14/2005EP1574112A2 Silicon-based transducer for use in hearing instruments
09/14/2005CN2726260Y Back-polar type capacitance microphone
09/13/2005US6944308 Capacitive transducer
09/13/2005US6943448 Multi-metal layer MEMS structure and process for making the same
09/09/2005WO2005083764A1 Production method for semiconductor device and semiconductor device
09/08/2005US20050196010 Electret condenser microphone for noise isolation and electrostatic discharge protection
09/08/2005US20050196007 Adhesive microphone
09/07/2005EP1571874A2 Electret condenser microphone for noise isolation and electrostatic discharge protection
09/07/2005CN1665348A Electret condenser microphone for noise isolation and electrostatic discharge protection
09/06/2005US6940564 Display substrate and display device
09/06/2005US6940211 Electroactive polymers transducers and actuators
09/01/2005WO2005081582A1 A parallelepiped type directional condenser microphone
09/01/2005WO2005081581A1 A parallelepiped type directional condenser microphone
09/01/2005US20050190944 Unidirectional condenser microphone unit
09/01/2005US20050189635 Packaged acoustic and electromagnetic transducer chips
09/01/2005US20050189622 Packaged acoustic and electromagnetic transducer chips
08/2005
08/31/2005EP1569498A2 Parallelepiped condenser microphone
08/31/2005EP1569006A1 Detector and method for measuring noise intensity
08/30/2005US6937735 Microphone for a listening device having a reduced humidity coefficient
08/30/2005US6936524 Ultrathin form factor MEMS microphones and microspeakers
08/25/2005WO2005079112A1 Capacity detection type sensor element
08/25/2005US20050185812 Miniature silicon condenser microphone and method for producing the same
08/25/2005US20050185811 Parallelepiped condenser microphone
08/25/2005US20050185807 Condenser microphone
08/25/2005DE10392880T5 Rauschunterdrückungssystem und Kopfhörer hierfür Noise reduction system and headphones for this
08/25/2005CA2556031A1 Capacity detection type sensor element
08/24/2005CN1659925A An acoustically active element formed in a multi-layer circuit-board structure, a method for forming acoustically active element in a multi-layer circuit-board structure, and a multi-layer circuit-boa
08/18/2005WO2005076466A1 Digital microphone
08/18/2005US20050179100 Micromechanical capacitive transducer and method for producing the same
08/17/2005EP1565034A1 Packaged digital microphone device with auxiliary line-in function
08/17/2005EP1093703B1 A method of manufacturing a transducer having a diaphragm with a predetermined tension
08/17/2005CN2718928Y Electret capacitance microphone connector
08/11/2005WO2005074319A1 Holder kit for directional condenser microphone
08/10/2005CN1653850A Capacitor sensor
08/09/2005US6928178 Condenser microphone and method for making the same
08/09/2005US6928174 Microphone structure
08/09/2005US6928173 Capacitor microphone
08/03/2005EP1060637B1 Acoustic element
08/03/2005CN2715447Y Front back electret type capacitor microphone
07/2005
07/28/2005WO2005069682A1 A parallelepiped type condenser microphone for smd
07/28/2005WO2005069681A1 A condenser microphone mountable on main pcb
07/28/2005US20050163336 Capacitor sensor
07/28/2005US20050163335 Speaker apparatus
07/27/2005EP0963683B1 Improved microphones for an implantable hearing aid
07/21/2005US20050157902 Microphone
07/21/2005US20050157901 Sound collector
07/20/2005EP1555535A1 Potential fixing device, potential fixing method, and capacitance mearuing instrument
07/20/2005CN1643975A Digital microphone
07/20/2005CN1642359A Micro-nano chip type microphone and its making method
07/20/2005CN1212046C Microphone structure
07/19/2005US6920225 Electret capacitor microphone
07/14/2005WO2005064900A1 Device for polarisation of a microphone with a low voltage and corresponding radiocommunication device
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