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)
11/2012
11/08/2012DE102011075260A1 MEMS-Mikrofon MEMS microphone
11/07/2012CN202524557U Single-wire programmable MEMS microphone and programming system thereof
11/07/2012CN102771143A Acoustic sensor and microphone
11/07/2012CN102771142A 麦克风 Microphone
11/07/2012CN101977344B Heat-resistant electret
11/01/2012WO2012148077A2 Digital condenser microphone having preamplifier with variable input impedance and method of controlling variable input impedance of preamplifier
11/01/2012WO2012148032A1 Digital condenser microphone including a preprocessing amplifier having variable input impedance, and method for adjusting the variable input impedance of the preprocessing amplifier
10/2012
10/31/2012EP2519030A1 Acoustic sensor and microphone
10/31/2012EP2517481A2 Surface-mounted microphone arrays on flexible printed circuit boards
10/31/2012EP2517480A1 Microelectromechanical transducer and corresponding assembly process
10/31/2012CN102761813A Microphone joint test method
10/31/2012CN101589543B Micro-electro-mechanical transducers
10/26/2012WO2012144411A1 Electret sheet
10/26/2012WO2012143151A1 Microelectromechanical sound detection apparatus and method for producing such an apparatus
10/26/2012CA2833689A1 Electret sheet
10/25/2012US20120269367 Condenser Microphone Unit and Condenser Microphone
10/24/2012CN202503663U Automatic sorting device of electret microphones
10/24/2012CN202503662U MEMS microphone circuit and upper computer circuit
10/24/2012CN1933680B Condenser microphone and packaging method for the same
10/24/2012CN102752700A Joint type condenser microphone using spring base
10/24/2012CN102752699A Micro electro mechanical system (MEMS) microphone device and manufacturing method thereof
10/24/2012CN101395958B Device and method of detecting and deterring microphone sabotage
10/23/2012US8295512 Microphone with voltage pump
10/17/2012EP2512029A1 Audio signal driver for flat sound generator
10/17/2012CN102742301A Microelectromechanical transducer and corresponding assembly process
10/17/2012CN102742299A Microphone unit and voice input device provided therewith
10/17/2012CN102740207A Chip integrating silicon micro microphone and complementary metal oxide semiconductor (CMOS) integrated circuit and manufacturing method of chip
10/17/2012CN102740206A Dual cell mems assembly
10/17/2012CN102740205A Packages and methods for packaging microphone devices
10/17/2012CN102740204A Micro electro mechanical system (MEMS) microphone chip possessing stereo diaphragm structure and manufacturing method thereof
10/17/2012CN102740203A Combined micro-electrical-mechanical-system microphone and manufacturing method of same
10/17/2012CN102740202A Sound receiving and sending module and portable electronic device
10/17/2012CN102740201A Electronic device
10/17/2012CN101478710B Silicon capacitor microphone
10/16/2012US8290184 MEMS microphone
10/11/2012US20120257779 Audio processing device
10/10/2012EP2509339A1 Mems microphone and manufacturing method thereof
10/10/2012CN202488706U Micro-electromechanical system (MEMS) microphone
10/10/2012CN202488705U MEMS (Micro-electromechanical Systems) silicon microphone utilizing eutectic bonding and SOI (Silicon On Insulator) silicon wafer
10/10/2012CN202488704U Mems microphone
10/10/2012CN202488703U Mems microphone
10/10/2012CN202488702U Standing wave tube coupled cavity used for wide band low distortion equiamplitude equiphase calibration
10/10/2012CN102726065A A MEMS microphone and method for packaging the same
10/10/2012CN102724612A Vehicle-mounted microphone with casing adopting bi-color injection molding
10/10/2012CN101686826B Ultrasonic probe, and ultrasonic diagnosing device
10/10/2012CN101568055B Silicone base capacitance microphone
10/10/2012CN101472212B Post-CMOS capacitance silicon-based micro-microphone and preparation method thereof
10/10/2012CN101115326B Microphone case and condenser microphone
10/09/2012US8284967 Electrostatic speaker having ventilative diaphragm
10/04/2012WO2012132468A1 Contact-type microphone and transceiver device provided with contact-type microphone
10/04/2012WO2012130989A1 Electret microphone
10/04/2012US20120250927 Paired Microphones for Rejecting Noise
10/04/2012US20120250910 Programmable microphone
10/04/2012US20120250909 Acoustic transducer with gap-controlling geometry and method of manufacturing an acoustic transducer
10/03/2012EP2506598A2 Dual cell MEMS assembly
10/03/2012CN202475751U Novel electret microphone
10/03/2012CN102714775A Methods and devices for pressure detection
10/03/2012CN102714774A Microphone integrated with integrated circuit
10/03/2012CN102714773A Microphone with backplate having specially shaped through-holes
10/03/2012CN102714772A Component having a micromechanical microphone structure and method for the production thereof
10/03/2012CN102711027A Mems microphone chip
10/03/2012CN101426164B Electroacoustic sensing apparatus
10/02/2012US8280092 Voice sound input apparatus
10/02/2012US8280082 Electret assembly for a microphone having a backplate with improved charge stability
10/02/2012US8280080 Microcap acoustic transducer device
09/2012
09/27/2012WO2012127943A1 Ultrasonic irradiation device
09/27/2012WO2012127737A1 Ultrasonic oscillator and ultrasonic diagnosis device
09/27/2012DE102009019029B4 Verfahren zur Herstellung eines Sensormoduls A process for producing a sensor module
09/26/2012EP2503793A1 Mems microphone package and packaging method
09/26/2012EP2502427A1 Microphone with backplate having specially shaped through-holes
09/26/2012CN202455532U Electret condenser microphone
09/26/2012CN1985543B Apparatus for suppressing radio frequency interference in a microphone assembly with preamplifier
09/26/2012CN102695113A Temperature compensation system and temperature compensation method
09/20/2012WO2012122872A1 Mems microphone and integrated pressure sensor and manufacturing method therefor
09/20/2012WO2012122869A1 Mems microphone and forming method therefor
09/20/2012WO2012122696A1 Cmos compatible silicon differential condenser microphone and method for manufacturing the same
09/20/2012US20120237072 Unidirective condenser microphone unit and condenser microphone
09/20/2012US20120237069 Electrostatic loudspeaker capable of dispersing sound both horizontally and vertically
09/20/2012DE102011005676A1 Bauteil Component
09/19/2012EP2501156A1 Electrostatic speaker
09/19/2012EP2501154A1 Microphone unit and voice input device provided therewith
09/19/2012EP2499840A1 Electro acoustic transducer
09/19/2012CN202444620U Capacitance type miniature silicon microphone
09/19/2012CN202444619U Spring connection type electret microphone
09/19/2012CN102685657A 部件 Part
09/19/2012CN102685656A Manufacturing method of microphone cartridge unit and finished product thereof
09/19/2012CN101427593B Single die MEMS acoustic transducer and manufacturing method
09/13/2012WO2012119637A1 Microphone and method to position a membrane between two backplates
09/13/2012WO2012119610A1 Method for driving a condenser microphone
09/13/2012US20120230523 Electro acoustic transducer
09/13/2012US20120230517 Electronic device
09/13/2012US20120230500 Ecm digital microphone temperature compensation
09/13/2012DE102012203741A1 Elektroakustischer Schallwandler An electro-acoustic transducer
09/12/2012EP2498513A1 Mems microphone and method for manufacturing same
09/12/2012CN202435606U Single-direction electret microphone
09/12/2012CN202435605U Sounder
09/12/2012CN102665161A Single-chip silicon microphone
09/06/2012DE102012202421A1 Microelectromechanical systems transducer device mounted to circuit board comprises package substrate having first coefficient of thermal expansion, and transducer substrate comprising transducer and disposed over package substrate
09/05/2012EP2495995A1 Resettable high-voltage capable high impedance biasing network for capactive sensors
09/05/2012CN202425038U Monolithic integration chip with integrated circuit and capacitance-type micro-silicon microphone
1 ... 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 ... 54