H04R 19 - Electrostatic transducers

Patents for H04R 19 - Electrostatic transducers (5,387)
10/2013
10/22/2013	US8565452 Integrated acoustic transducer in MEMS technology, and manufacturing process thereof
10/17/2013	DE102012205996A1 Sensoranordnung und Verfahren zur Umfelderfassung eines Fahrzeugs Sensor system and method for detecting the surroundings of a vehicle
10/16/2013	EP2651147A1 Electronic device and acoustic playback method
10/16/2013	CN203243522U 声音换能器 Sound transducer
10/16/2013	CN101868982B Capacitive micromachined ultrasonic transducer with voltage feedback
10/15/2013	US8559664 Microphone unit
10/10/2013	WO2013150326A1 Passive wireless microphone
10/10/2013	DE102013205527A1 Mems-bauelement und verfahren zur herstellung eines mems-bauelements MEMS device and method of manufacturing a MEMS device
10/10/2013	DE102008013395B4 Kondensatormikrofon Condenser microphone
10/09/2013	CN203233538U A microphone suitable for operating under a high illumination condition
10/09/2013	CN203233537U Conference microphone applied in conference system
10/09/2013	CN103347808A A silicon based mems microphone, a system and a package with the same
10/09/2013	CN103347241A Capacitor type silicon microphone chip and preparation method thereof
10/09/2013	CN103347240A Wireless handheld microphone
10/09/2013	CN103347239A MEMS microphone and assembling method thereof
10/09/2013	CN103347238A Piezoelectric electret thin-film laminated structure and microphone
10/09/2013	CN102143425B Film speaker array
10/03/2013	WO2013145411A1 Speaker
10/03/2013	WO2013143607A1 Microphone with automatic bias control
10/03/2013	WO2013089845A3 Method for etching material longitudinally spaced from etch mask
10/02/2013	EP2643982A1 Apparatus and methods for individual addressing and noise reduction in actuator arrays
10/02/2013	CN203225887U Mems麦克风 Mems Microphone
10/02/2013	CN203225886U Mems麦克风 Mems Microphone
10/02/2013	CN203225885U Mems microphone
10/02/2013	CN203225884U Ultra-thin MEMS microphone module device
10/02/2013	CN203225883U Assembly device of unidirectional electret microphone and silicon case
10/02/2013	CN103338427A MEMS (micro-electromechanical systems) chip and MEMS microphone
09/2013
09/26/2013	WO2013142367A1 High frequency cmut
09/25/2013	DE202009018829U1 Mikrophon für Audioaufnahmen hoher Amplitude Microphone for audio recording high amplitude
09/25/2013	CN203219488U MEMS microphone and sound receiving device
09/25/2013	CN203219487U Double MIC squelch silicon microphone structure and wireless microphone
09/25/2013	CN103329575A Sound transducer and microphone using same
09/25/2013	CN102318021B Process for manufacturing electret, and electrostatic induction-type conversion element
09/19/2013	DE102013202136A1 System und Verfahren für eine PCM-Schnittstelle für eine kapazitive Signalquelle System and method for a PCM interface for capacitive signal source
09/19/2013	DE102012203900A1 Bauelement mit einer mikromechanischen Mikrofonstruktur Component having a micromechanical microphone structure
09/18/2013	CN203206468U Mems麦克风 Mems Microphone
09/18/2013	CN203206467U Water vapor-proof capacitor type mini-sized microphone
09/18/2013	CN203206466U Silicon capacitor microphone
09/18/2013	CN103313176A Microphone
09/18/2013	CN103313175A Micro-electro-mechanical microphone encapsulating module
09/18/2013	CN103313174A Double-layered electret electroacoustic conversion device, and electronic device with electret loudspeaker
09/18/2013	CN103313173A Packaging structure of electret electroacoustic conversion device
09/18/2013	CN103313172A Micromechanical Sound Transducer Arrangement and a Corresponding Production Method
09/18/2013	CN103308154A Noise detector for porous metal composite arrayed electrets
09/18/2013	CN102045630B Capacitive sensor
09/11/2013	CN203193895U Mems microphone
09/11/2013	CN203193894U MEMS (micro-electromechanical systems) microphone
09/11/2013	CN203193893U MEMS (micro-electromechanical systems) microphone
09/11/2013	CN203193892U MEMS (micro-electromechanical systems) microphone
09/11/2013	CN203193891U MEMS (micro-electromechanical systems) microphone
09/11/2013	CN203193890U MEMS (micro-electromechanical systems) microphone
09/11/2013	CN203193889U Sound pick-up device based on microphone array voice noise reduction technology
09/11/2013	CN203193888U Mems麦克风 Mems Microphone
09/11/2013	CN203193887U Mems麦克风 Mems Microphone
09/11/2013	CN203193886U Mems麦克风 Mems Microphone
09/11/2013	CN203193885U Mems麦克风 Mems Microphone
09/11/2013	CN203193884U Mems麦克风 Mems Microphone
09/11/2013	CN203193883U Mems麦克风 Mems Microphone
09/11/2013	CN203193882U Electret condenser microphone
09/11/2013	CN203193881U Electret microphone protection circuit
09/11/2013	CN103298410A Ultrasonic probe
09/11/2013	CN103297907A Capacitive mini-type microphone and manufacturing method thereof
09/11/2013	CN103297906A Unidirectional condenser microphone and method for adjusting acoustic resistance
09/11/2013	CN103288040A Tunable MEMS device and method of making a tunable MEMS device
09/11/2013	CN102148467B Bearing seat of handheld electronic device with speaker and electronic system
09/11/2013	CN101888585B Unidirectional capacitive microphone
09/11/2013	CN101453682B A backplateless silicon microphone
09/06/2013	WO2013082594A9 Planar speaker
09/05/2013	DE102012203373A1 Mikromechanische Schallwandleranordnung und ein entsprechendes Herstellungsverfahren Micro-mechanical transducer array and a corresponding production method
09/04/2013	CN103281663A Manufacturing method for integrated circuit and capacitive type micro-silicon microphone single chip integration
09/04/2013	CN103281662A Capacitance silicon microphone and preparation method thereof
09/04/2013	CN103281661A MEMS (micro electro mechanical system) microphone structure and manufacturing method of MEMS microphone structure
09/04/2013	CN103281660A Double-bottom gasket and MEMS (Micro Electro Mechanical System) microphone
09/04/2013	CN103281659A Micro-electro-mechanical-system (MEMS) microphone and manufacturing method thereof
09/03/2013	US8526271 Capacitive micromachined ultrasonic transducer with voltage feedback
08/2013
08/29/2013	WO2013126203A2 Loudspeaker system
08/29/2013	DE102013203379A1 Abstimmbare mems-vorrichtung und verfahren zur herstellung einer abstimmbaren mems-vorrichtung Tunable MEMS device and method of making a tunable MEMS device
08/29/2013	DE102012202783A1 Mikromechanische Sensorvorrichtung mit beweglichem Gate und entsprechendes Herstellungsverfahren Micromechanical sensor device with movable gate and method of manufacture
08/29/2013	DE102012101505A1 Verfahren zur Herstellung eines Sensors A method for producing a sensor
08/28/2013	EP2630640A1 Acoustic diffusion generator
08/22/2013	DE102012202422A1 Schallwandleranordnung Transducer array
08/21/2013	EP2629549A1 Ultrasonic transducer and ultrasonic diagnostic equipment using the same
08/21/2013	CN203151732U Capacitive microphone
08/21/2013	CN101945319B Condenser microphone
08/21/2013	CN101820570B Microphone
08/21/2013	CN101665230B Micro-electro-mechanical systems (mems) package and method for forming the mems package
08/21/2013	CN101584226B Microphone with pressure relief
08/14/2013	CN203136159U MEMS microphone
08/14/2013	CN203135853U High-performance frequency modulation emitter
08/14/2013	CN103248994A Method for manufacturing integrated circuit and capacitance-type micro silicon microphone monolithic integration and chip
08/13/2013	US8508109 Electroactive polymer manufacturing
08/08/2013	DE102010062149B4 MEMS-Mikrophonhäusung und MEMS-Mikrophonmodul MEMS and MEMS microphone module Mikrophonhäusung
08/07/2013	CN203120151U Mems麦克风 Mems Microphone
08/07/2013	CN203120150U Simple electronic warning device
08/07/2013	CN101715159B Loudspeaker
08/07/2013	CN101636264B Acoustic actuator plate structure
08/01/2013	US20130195293 Crossover double speaker
08/01/2013	US20130195291 Fast power-up bias voltage circuit
07/2013
07/31/2013	CN203104773U Full-automatic electret microphone crimping machine
07/31/2013	CN203104765U Porous SOI (Silicon-On-Insulator) silicon-silicon bonding MEMS (Micro-Electro-mechanical System) silicon microphone

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