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)
04/2012
04/26/2012WO2009116957A3 Water resistant ultra-low pressure sensor
04/26/2012DE102010042875A1 Verfahren zur Regelung einer Vorspannung für einen kapazitiven mikromechanischen Ultraschallwandler Method for controlling a bias voltage for a capacitive micromechanical ultrasound transducer
04/26/2012DE102010042797A1 Kondensatormikrofon Condenser microphone
04/26/2012CA2812620A1 Acoustic diffusion generator
04/25/2012EP1105344B1 Micromechanical sensor and corresponding production method
04/25/2012CN202206540U 便于装配的传声器背极板 Microphone back plate for easy assembly
04/25/2012CN102428711A 具有降低的振动灵敏度的麦克风 With reduced vibration sensitivity of the microphone
04/25/2012CN102427572A 高性能集成电路调频无线话筒 High-performance integrated circuits FM wireless microphone
04/25/2012CN102427334A 可产生能替代驻极体电压的前置放大器芯片 Can produce can replace electret voltage preamplifier chip
04/19/2012WO2012051340A1 Microphone package with embedded asic
04/19/2012WO2012050279A1 Microphone device
04/19/2012WO2012050172A1 Ultrasonic transducer and ultrasonic diagnostic equipment using the same
04/18/2012CN202197399U 电容式麦克风装置 Condenser microphone apparatus
04/18/2012CN202197398U 电容式麦克风装置 Condenser microphone apparatus
04/18/2012CN202197397U 一种内覆绝缘膜外壳的传声器 An internal microphone casing cover insulating film
04/18/2012CN202197396U 一种引线式驻极体电容传声器 A lead-electret condenser microphone
04/18/2012CN1812630B Microphone
04/18/2012CN102421053A Mems麦克风 Mems Microphone
04/18/2012CN101222781B Connector of microphone and its shielding method
04/11/2012EP2438767A1 Component having a micro-mechanic microphone structure and method for producing same
04/11/2012EP2437657A1 Capacitive sensing system
04/11/2012CN202190401U 电容式驻极体传声器 Electret condenser microphone
04/11/2012CN202190394U 模拟数字转换器和数字麦克风 Analog to digital converter and a digital microphone
04/11/2012CN1838837B 固体电容式结构微型传声器 Solid capacitor structure miniature microphone
04/11/2012CN102415108A 用于音频设备的mems换能器 Mems devices for audio transducers
04/11/2012CN102413409A Mems麦克风 Mems Microphone
04/11/2012CN102413408A 一种增加背腔空间的微机电麦克风芯片及其制作工艺 An increase in MEMS microphone chip and its manufacturing process back cavity space
04/11/2012CN102413219A Electromagnetic shielding and an acoustic chamber for a microphone in a mobile electronic device
04/10/2012US8155356 Structure and manufacturing method of electrostatic speaker
04/10/2012US8155355 Electret condenser microphone
04/10/2012US8155345 Wearable terminal, mobile imaging sound collecting device, and device, method, and program for implementing them
04/04/2012EP2437519A1 Heat resistant electret material and heat resistant electret
04/04/2012CN202183867U 微型化电容式麦克风 Miniature condenser microphone
04/04/2012CN102405654A 麦克风 Microphone
04/04/2012CN102405653A Ultrasonic probe and ultrasonic imaging apparatus
04/04/2012CN102405590A Dielectric film, method for producing same, and transducer using same
04/04/2012CN102404676A MEMS microphone package
04/04/2012CN101006748B Silicon condenser microphone and manufacturing method
04/03/2012US8150086 Voice sound input apparatus and voice sound conference system
04/03/2012US8150078 Electret condenser microphone
03/2012
03/29/2012WO2012039074A1 Sensor
03/28/2012EP2432600A1 Acoustic wave generation device and equipment including a plurality of such devices
03/28/2012EP2224750B1 Electret condenser microphone
03/28/2012CN202178870U 一种mems麦克风 One kind mems microphones
03/28/2012CN202178869U 驻极体传声器线路板组件 Electret microphone circuit board assembly
03/28/2012CN102396245A Apparatus, methods and computer programs for converting sound waves to electrical signals
03/28/2012CN102395093A Silicic miniature microphone
03/28/2012CN101321413B Condenser type microphone
03/28/2012CN101146375B A micro capacitance microphone
03/27/2012US8144898 High performance microphone and manufacturing method thereof
03/22/2012US20120069715 Ultrasound diagnostic apparatus
03/22/2012US20120069701 Ultrasonic transducer and ultrasonic diagnostic apparatus provided with same
03/21/2012EP2019812B1 Method for producing a micromechanical component having a membrane and micromechanical component
03/21/2012CN202172491U Capacitance microphone structure suitable for vacuum adsorption installation and MEMS capacitance microphone
03/21/2012CN1820539B Electret microphone comprising spring washer
03/21/2012CN102387456A Midget microphone and manufacturing method thereof
03/21/2012CN102387455A MEMS microphone chip possessing expanded back cavity space
03/21/2012CN102387454A Silicon microphone and packaging structure of product applying same
03/21/2012CN102387453A Flat speaker structure and manufacturing method thereof
03/21/2012CN102387452A Electrostatic loudspeaker and production method thereof and conductive back board of electrostatic loudspeaker
03/20/2012US8138034 Flexible electret transducer assembly, speaker, and method for fabricating flexible electret transducer assembly
03/14/2012EP1323330B1 Electrostatic audio loudspeakers
03/14/2012CN102378093A Silicon microphone
03/14/2012CN102378092A Mems microphone
03/14/2012CN102378091A Micro electromechanical radio receiver structure
03/14/2012CN101330775B Method for integrating washer and back pole as well as method for assembling microphone
03/14/2012CN101208990B Micromachined microphone and multisensor and method for producing same
03/13/2012US8133182 Multi-dimensional transducer array and beamforming for ultrasound imaging
03/08/2012DE102010040370A1 MEMS-Mikrofon-Package MEMS microphone package
03/07/2012EP2426683A1 Electret material and electrostatic-type acoustic transducer
03/07/2012CN202160277U 电容式麦克风装置 Condenser microphone apparatus
03/07/2012CN202160276U 驻极体电容传声器用背极板 Electret condenser microphone with a back plate
03/07/2012CN102368837A Capacitance type microphone based on surface micro-machining process and preparation method thereof
03/06/2012US8130984 Acoustic vibration sensor
03/01/2012WO2012005434A3 Microphone
03/01/2012US20120051564 Flat speaker structure and manufacturing method thereof
02/2012
02/29/2012EP2424273A1 Ultrasonic probe and ultrasonic imaging apparatus
02/29/2012EP2423157A2 MEMS pressure sensor device and method of fabricating same
02/23/2012WO2012023619A1 Ultrasound probe and ultrasound diagnostic device using same
02/23/2012WO2011148778A8 Acoustic transducer, and microphone using the acoustic transducer
02/23/2012US20120043629 Surface Mount Silicon Condenser Microphone Package
02/23/2012DE102010035168A1 Sensor for microelectromechanical system capacitor microphone used in e.g. medical field, has sound passage openings arranged anisotropically on counter electrode such that reduction of lateral forces on counter electrode is achieved
02/22/2012EP2421281A2 Circuit and method for monitoring a capacitive signal source
02/22/2012EP2421013A1 Process for production of electret material
02/22/2012CN202150937U 具有声学调节件的电容式麦克风 With Acoustic regulating member condenser microphone
02/22/2012CN202150936U 微机电传感器 MEMS sensors
02/22/2012CN101867858B 用于硅基器件的凸微观部件 Convex microscopic components for silicon-based devices
02/21/2012US8121331 Surface mount silicon condenser microphone package
02/21/2012US8120229 Middle spring supported micro-electro-mechanical transducers
02/21/2012US8117919 Micro-electro-mechanical system device
02/15/2012CN1678134B 电容式麦克风 Condenser Microphone
02/15/2012CN102356648A Electrostatic speaker
02/15/2012CN102355620A Method for realizing automatic debugging of wireless microphone and automatic debugging system
02/15/2012CN102355619A Electrostatic flat panel speaker
02/15/2012CN102355618A Modulated wave wireless microphone
02/09/2012WO2012017805A1 Microphone unit
02/09/2012WO2012017795A1 Microphone unit
02/09/2012WO2012017794A1 Microphone unit
02/09/2012WO2012017504A1 Manufacturing method for microphone
02/09/2012US20120033834 Apparatus With Directivity Pattern
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