H04R 19 - Electrostatic transducers

Patents for H04R 19 - Electrostatic transducers (5,387)
11/2006
11/29/2006	CN1870836A Mini-packing silicon microphone
11/28/2006	US7142688 Single-ended planar-magnetic speaker
11/28/2006	US7142684 Microphone assembly
11/28/2006	US7142682 Silicon-based transducer for use in hearing instruments and listening devices
11/28/2006	US7140084 Method of producing thin film bulk acoustic resonator
11/23/2006	WO2006124002A1 Silicon microphone
11/23/2006	WO2006123263A1 Improved membrane for a mems condenser microphone
11/23/2006	DE102005051604A1 Verfahren zum Herstellen eines Ultraschallwandlers A method of manufacturing an ultrasonic transducer
11/22/2006	EP1725071A2 Condenser microphone with air ventilation system
11/22/2006	CN1868114A 麦克风前置放大器 Microphone Preamplifier
11/22/2006	CN1867206A Condenser microphone with air ventilation system
11/16/2006	US20060256981 Condenser microphone employing wide band stop filter and having improved resistance to electrostatic discharge
11/15/2006	EP1722596A1 Electret capacitor microphone
11/15/2006	EP1722595A1 Electret condenser
11/15/2006	EP1720794A2 Packaged acoustic and electromagnetic transducer chips
11/15/2006	CN2838192Y Circuit module assembly of capacitive microphone
11/15/2006	CN2838191Y Novel silicon micro-capacitor microphone chip produced with matured technique
11/14/2006	US7136500 Electret condenser microphone
11/14/2006	US7136496 Electret assembly for a microphone having a backplate with improved charge stability
11/14/2006	US7134179 Process of forming a capacitative audio transducer
11/09/2006	WO2006118680A1 Acoustic transducer module
11/08/2006	CN1860824A Dual base of an electret condenser microphone and electret condenser microphone using the same
11/08/2006	CN1860823A A microphone component and a method for its manufacture
11/08/2006	CN1859815A Polycrystal silicon vibration film silicon micro capacitor microphone chip and its preparing method
11/08/2006	CN1284414C Capacitive transducer
11/08/2006	CN1283547C Micro-machined ultrasonic transducer (MUT) that limits the lateral propagation of acoustic energy and method thereof
11/07/2006	US7132307 High performance silicon condenser microphone with perforated single crystal silicon backplate
11/02/2006	WO2006116739A1 Electret condenser microphone and manufacturing method thereof
11/02/2006	WO2006116017A2 Micromachined microphone and multisensor and method for producing same
11/02/2006	WO2006115314A1 Dual base and electret condenser microphone using the same
11/02/2006	WO2006115045A1 Electret condenser microphone
11/02/2006	EP1718109A1 Casing of condenser microphone
11/02/2006	EP1718108A1 Dual base of an electret condenser microphone and electret condenser microphone using the same
11/02/2006	EP1718107A2 Electrostatic transducer, method for connecting the same and manufacturing method
11/01/2006	CN2834074Y Silicon-based vibrating diaphragm capacitor microphone
11/01/2006	CN2834073Y Thin-type electret capacitor microphone
11/01/2006	CN2834072Y Riveted-leg unidirectional capacitor microphone
11/01/2006	CN2834071Y Silicon-based backing electrode capacitor microphone
10/2006
10/26/2006	US20060238079 Electroactive polymers
10/26/2006	US20060238066 Electroactive polymer generators
10/26/2006	DE102005017357A1 Mikrofonvorrichtung für ein Hörgerät Microphone apparatus for a hearing aid
10/25/2006	EP1715721A1 Capacity detection type sensor element
10/25/2006	EP1714385A1 Digital microphone
10/19/2006	WO2006046927A3 A backplateless silicon microphone
10/19/2006	WO2006046926A3 A silicon microphone with softly constrained diaphragm
10/19/2006	US20060233400 Sound detecting mechanism
10/18/2006	CN2829267Y Double vibration diaphragm combined electret type condensor microphone
10/18/2006	CN1849016A A condenser microphone having a hydrophobic layer
10/11/2006	CN2826882Y Electric connection device of microphone
10/11/2006	CN2826881Y 驻极体电容传声器 Electret condenser microphone
10/11/2006	CN1846121A 振动传感器 Vibration Sensor
10/05/2006	US20060222196 Acoustic tube and directional microphone
10/05/2006	DE19937990B4 Integrierte Halbleiterschaltung für ein Elektret-Mikrofon A semiconductor integrated circuit for an electret microphone
10/04/2006	EP1707030A1 A parallelepiped type condenser microphone for smd
10/04/2006	EP1707029A1 A condenser microphone mountable on main pcb
10/04/2006	CN2824490Y 麦克风 Microphone
09/2006
09/28/2006	US20060215867 Cylindrical microphone having an electret assembly in the end cover
09/28/2006	US20060215858 Miniature condenser microphone and fabrication method therefor
09/27/2006	CN1838837A Minitype microphone with solid capacitance type structure
09/21/2006	WO2006098537A1 Curling method for condenser microphone
09/21/2006	WO2006098536A1 Electret condenser microphone assembly for smd
09/21/2006	WO2006098339A1 Semiconductor device, semiconductor device manufacturing method and cover frame
09/21/2006	US20060210106 Miniature condenser microphone and fabrication method therefor
09/20/2006	CN1836464A Electromechanical transducer and a manufacturing method
09/20/2006	CN1835646A Condenser microphone
09/19/2006	US7107665 Method for manufacturing microphone assembly
09/14/2006	WO2006095946A1 Improved condenser microphone
09/14/2006	US20060205244 Electret capacitor microphone
09/13/2006	CN2817273Y Long channel silicon microphone
09/12/2006	US7106869 Condenser microphone
09/12/2006	US7104844 Connector for condenser microphone
09/06/2006	CN2814865Y Pick-up device
09/06/2006	CN2814864Y Single-directional microphone
09/06/2006	CN2814863Y Silicon microphone with strong antiinterference
09/06/2006	CN2814862Y 驻极体电容传声器 Electret condenser microphone
09/06/2006	CN2814861Y Microphone with front-located back polar plate
09/06/2006	CN2814860Y Electret capacitance microphone by SMT
09/06/2006	CN1828469A Voltage supply circuit, power supply circuit, microphone unit using the same, and microphone unit sensitivity adjustment method
08/2006
08/31/2006	WO2006090957A1 A condenser microphone and method of making the same
08/31/2006	WO2006089641A1 Mems microphone
08/31/2006	WO2006089638A1 Electrical module comprising a mems microphone
08/31/2006	US20060193486 Hands-free microphone with wind break
08/31/2006	DE10297066B4 Elektroakustischer Wandler Electro-acoustic transducer
08/31/2006	DE102005007623A1 Mikrofon Microphone
08/30/2006	EP1696698A2 Condenser microphone and method for manufacturing the same
08/30/2006	CN2812465Y Microphone package structure for micro-electromechanical system
08/30/2006	CN1826836A Material for heat-resistant electret and heat-resistant electret
08/24/2006	WO2006088278A1 Electret condenser microphone fabrication method
08/24/2006	WO2006088277A1 Electret condenser microphone assembly for smd
08/24/2006	WO2006088276A1 Insulation based ring of condenser microphone having ventilation pattern
08/24/2006	US20060188728 Material for heat-resistant electret and heat-resistant electret
08/23/2006	CN1823551A Sound detection mechanism
08/23/2006	CN1822722A Semiconductor sensor
08/23/2006	CN1822721A Capacitance microphone
08/23/2006	CN1271415C Capacitance detection circuit, capacitance detection instrument and microphone device
08/22/2006	US7095864 Electrostatic audio loudspeakers
08/17/2006	WO2006085707A1 Case of condenser microphone having ventilation slit
08/16/2006	EP1691570A2 Microphone
08/16/2006	EP1690332A1 Microphone with voltage pump
08/16/2006	CN1820541A A condenser microphone and method of making the same

1 ... 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 ... 54