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)
11/2010
11/10/2010EP1602135B1 Rolled electroactive polymers
11/10/2010CN101883307A Capacitor MEMS (Micro-Electro-Mechanical System) microphone diaphragm
11/10/2010CN101883306A Diaphragm and capacitance microphone comprising diaphragm
11/10/2010CN101883305A Diaphragm and silicon-based microphone employing diaphragm
11/04/2010WO2010126015A1 Multivariate detection device and multivariate detection method
11/04/2010WO2010126012A1 Electret material and electrostatic-type acoustic transducer
11/04/2010WO2010124909A1 Mems microphone
11/04/2010US20100278363 Electrostatic Speaker having Ventilative Diaphragm
11/04/2010US20100278015 Variable Operating Voltage in Micromachined Ultrasonic Transducer
11/04/2010DE102009019446A1 MEMS Mikrofon MEMS microphone
11/03/2010EP1927263B1 Capacitive sound transducer having a perforated attenuation disc
11/03/2010EP1757163B1 Condenser microphone
11/03/2010EP1294494B1 Capacitive micromachined ultrasonic transducer and operating method thereof
11/03/2010CN201623852U Mems麦克风芯片 Mems microphone chip
11/03/2010CN201623851U Mini-type capacitance microphone
11/03/2010CN101878658A Ultrasonic probe, and ultrasonic diagnosis device using the probe
11/03/2010CN101877811A Microelectromechanical system (mems) device with senstivity trimming circuit and trimming process
10/2010
10/28/2010WO2010122982A1 Ultrasonic probe and ultrasonic imaging apparatus
10/28/2010WO2010122487A1 Microphone
10/28/2010WO2009112241A8 Condenser microphone
10/27/2010EP2244490A1 Silicon condenser microphone with corrugated backplate and membrane
10/27/2010CN201616904U 一种驻极体传声器 An electret microphone
10/21/2010WO2010119869A1 Process for production of electret material
10/21/2010WO2010119600A1 Converter module and method for manufacturing same
10/21/2010WO2010119415A1 Microphone with adjustable characteristics
10/21/2010WO2010119168A1 Apparatus, methods and computer programs for converting sound waves to electrical signals
10/21/2010WO2010080820A3 Microphone and orientation sensor assembly
10/21/2010US20100263181 Rolled electroactive polymers
10/20/2010EP2242288A1 Microphone with adjustable characteristics
10/20/2010EP2242285A1 Microphone unit
10/20/2010CN201611949U 一种具有减噪功能的声学传感器 Acoustic sensor having a noise reduction function
10/20/2010CN101868982A Capacitive micromachined ultrasonic transducer with voltage feedback
10/20/2010CN101868981A Stacked transducing devices
10/20/2010CN101867860A Condenser microphone having split electrodes
10/20/2010CN101867859A Electrostatic loudspeaker
10/20/2010CN101867858A Raised microstructure of silicon based device
10/14/2010WO2010116324A1 Backplate for microphone
10/13/2010EP2239961A1 Backplate for microphone
10/13/2010CN201608895U 抗干扰电容式麦克风 Interference condenser microphone
10/13/2010CN101860778A Amplifier circuit of capacitor microphone
10/07/2010WO2010113384A1 Semiconductor device and manufacturing method therefor
10/07/2010WO2010113107A1 Mems transducer for an audio device
10/07/2010US20100254561 Microphone device
10/07/2010US20100254222 Dual-Mode Operation Micromachined Ultrasonic Transducer
10/06/2010EP2237571A1 MEMS transducer for an audio device
10/06/2010EP2237414A2 Amplifier circuit of capacitor microphone
10/06/2010CN201601823U 一种插针式能选择左右声道的数字传声器 A needle is inserted to choose left and right channel digital microphone
09/2010
09/30/2010US20100246876 Boundary microphone
09/30/2010US20100246332 Stacked Transducing Devices
09/29/2010CN201594915U Capacitance electroacoustic device module with control switch
09/29/2010CN101848411A Silica-based condenser microphone and production method thereof
09/28/2010US7804968 Condenser microphone
09/22/2010EP1808046B1 Reduction of air damping in mems device
09/22/2010CN201590897U MEMS microphone
09/22/2010CN201590896U Surface mounted microphone
09/22/2010CN101841758A Capacitance MEMS (micro-electro-mechanical system) microphone
09/22/2010CN101841756A Diaphragm and silicon condenser microphone applying same
09/21/2010US7801316 Capacitor microphone
09/21/2010US7800981 High efficiency portable seismograph for measuring seismic tremor
09/16/2010WO2010103410A1 Microphone and accelerometer
09/15/2010EP2227913A1 Electrostatic speaker arrangement for a mobile device
09/15/2010CN201585126U Waterproof microphone
09/15/2010CN101835080A Silicon-based microphone
09/15/2010CN101835079A Capacitance type minitype silicon microphone and preparation method thereof
09/15/2010CN101835078A Silicon microphone and manufacturing method thereof
09/15/2010CN101835077A Electret condenser microphone and manufacturing method thereof
09/15/2010CN101835076A Capacitive sensing device and making method thereof
09/10/2010WO2010100861A1 Ultrasonic transducer, method of producing same, and ultrasound probe using same
09/10/2010WO2010062820A3 Side-ported mems microphone assembly
09/10/2010WO2010008344A3 Extended sensor back volume
09/09/2010US20100226522 Microphone Unit
09/08/2010EP2227037A1 Ultrasonic probe, and ultrasonic diagnosis device using the probe
09/08/2010EP1221180B1 Electroactive polymers
09/08/2010CN201577197U Capacitance-type microphone
09/08/2010CN201577196U Electret microphone
09/08/2010CN101828409A Silicon microphone with enhanced impact proof structure using bonding wires
09/08/2010CN101827298A Microphone unit
09/07/2010US7792315 Silicon-based transducer for use in hearing instruments and listening devices
09/01/2010EP2224750A1 Electret capacitor microphone
09/01/2010EP2223534A2 Mems microphone
09/01/2010CN201571199U Capacitive pick-up polar plate
09/01/2010CN201571172U Square pillar polarizing plate
09/01/2010CN101820570A Microphone
08/2010
08/26/2010WO2010095554A1 Process for manufacturing electret, and electrostatic induction-type conversion element
08/26/2010WO2010095553A1 Process for manufacturing electret, and electrostatic induction-type conversion element
08/25/2010CN201563235U Minimized microphone for suppressing interference signal
08/25/2010CN201563234U Miniature microphone for effectively improving high temperature resistant capability
08/25/2010CN201563233U Silicon microphone capable of preventing damage of nozzle of surface mounting machine
08/25/2010CN201563232U Three-port microphone
08/25/2010CN201562446U Electronic photo frame with intelligent control of display brightness
08/25/2010CN101815239A Method of forming acoustic hole in case of condenser microphone and the condenser microphone case
08/25/2010CN101815235A Miniature MEMS condenser microphone packages and fabrication method thereof
08/25/2010CN101815234A Assembly structure of plane loudspeaker
08/19/2010WO2010093089A1 Method for forming acoustic hole in condenser microphone case and the condenser microphone case
08/19/2010WO2010092856A1 Microphone unit
08/19/2010US20100208919 Electret condenser microphone for noise isolation and electrostatic discharge protection
08/19/2010DE102009007837A1 Sensormodul und Verfahren zum Herstellen von Sensormodulen Sensor module and method of manufacturing of sensor modules
08/18/2010CN1933682B Vibrating diaphragm chip of silicon microphone and producing method thereof
08/18/2010CN101808263A Silicon capacitor microphone and method for manufacturing same
08/18/2010CN101808262A Capacitance microphone
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