Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 23 - Transducers other than those covered by groups
Patents for H04R 23 - Transducers other than those covered by groups (1,562)
02/2013
02/13/2013CN101610443B Audible device
02/13/2013CN101605290B Sounding device
02/13/2013CN101600140B Sound producing device
02/13/2013CN101600139B Sound producing device
02/12/2013US8373240 Sensor device having a structure element
02/06/2013CN101536548B 扬声器致动器 Speaker actuators
02/06/2013CN101494810B Sound play device and method
01/2013
01/30/2013CN101771385B Power amplification circuit and thermally induced sound-producing device with power amplification circuit
01/24/2013WO2013010398A1 Flexible and transparent acoustic apparatus
01/16/2013CN202679630U Flat sounding apparatus with bone conduction device
01/09/2013CN101771916B Sounding device
01/09/2013CN101610444B Sounding device
01/08/2013CA2574028C Acoustic wave sensor
01/02/2013CN202652524U Bone-conduction microphone
01/02/2013CN101729967B Acousto-optic conversion method and optical microphone based on multiple-mode interference
12/2012
12/26/2012CN101778327B Electricity and sound conversion method and device
12/20/2012WO2012121533A3 Composite speaker system
12/20/2012WO2012073262A3 "a device for sound reproduction with coaxial acoustic actuators"
12/20/2012US20120321110 Porous silica material and optical microphone using the same
12/19/2012EP2536169A1 Optical microphone
12/19/2012CN202617345U Bone-conduction microphone
12/19/2012CN102833661A Laser microphone
12/19/2012CN102833660A Optical microphone
12/18/2012US8334159 MEMS pressure sensor using capacitive technique
12/06/2012WO2012166077A1 Device for generating acoustic waves (two embodiments)
12/06/2012WO2012163681A1 Optical sensor
11/2012
11/29/2012US20120300592 Sender transducer for wireless power transfer
11/21/2012EP2525194A1 Optical sensor
11/21/2012CN202551344U Bone-conduction microphone
11/21/2012CN202551343U Bone-conduction microphone
11/21/2012CN101203067B Vibration transducer
11/20/2012US8312652 Sing-a-long greeting cards
11/15/2012WO2012154238A1 Sonic filter for measuring and capturing particles having a particular particle size in a fluid, mixture or process flow
11/15/2012CA2826655A1 Sonic filter for measuring and capturing particles having a particular particle size in a fluid, mixture or process flow
11/07/2012CN102769814A Sounding device
11/06/2012US8306429 Optical ultrasonic microphone
10/2012
10/31/2012EP2519031A1 Electroacoustic transducer, electronic device, method for converting electronic sound, and method for outputting acoustic wave from electronic device
10/30/2012US8299551 Semiconductor pressure sensor and method for manufacturing the same
10/11/2012WO2012137482A1 Optical microphone
10/10/2012CN202488707U Bone conduction microphone
10/10/2012CN102724621A Thermoacoustic device and electronic device
10/10/2012CN102724620A Thermoacoustic device and electronic device
10/10/2012CN102724619A Thermoacoustic device and electronic device
10/10/2012CN102724618A Thermoacoustic device and electronic device
10/10/2012CN102724617A Thermoacoustic device and electronic device
10/10/2012CN102724616A Thermoacoustic device and electronic device
10/10/2012CN102724615A A thermal sounding device and an electronic device
10/10/2012CN102724614A A thermal sounding device and an electronic device
10/10/2012CN102724613A A thermal sounding device and an electronic device
10/04/2012US20120250907 Thermoacoustic device
10/04/2012US20120250906 Thermoacoustic device
10/04/2012US20120250905 Thermoacoustic device
10/04/2012US20120250904 Thermoacoustic device
10/04/2012US20120250903 Thermoacoustic device
10/04/2012US20120250902 Thermoacoustic device
10/04/2012US20120250901 Thermoacoustic device
10/04/2012DE102011015677A1 Akustischer Durchflussmesser Acoustic flowmeter
09/2012
09/27/2012WO2012127808A1 Optical microphone
09/27/2012WO2012126983A1 Optoacoustic transducer and hydrophonic arrangement comprising such transducer(s)
09/27/2012DE102011014663A1 Optoakustischer Wandler sowie Hydrophonanordnung mit derartigem oder derartigen Wandlern Opto-acoustic transducer and hydrophone with such or such converters
09/26/2012CN102696241A 光学麦克 Optical Mike
09/19/2012CN102687532A Electroacoustic transducer, electronic device, method for converting electronic sound, and method for outputting acoustic wave from electronic device
09/13/2012WO2012121533A2 Composite speaker system
09/11/2012US8265306 Digital microphone and power supply unit for a digital microphone
08/2012
08/30/2012WO2009019331A3 Electronic component with three associated functions
08/21/2012USRE43595 Noise attenuating headset
08/15/2012CN202385275U Self-mixing interference measurement method-based real-time voice signal pickup device
08/15/2012CN102638754A Acoustic transducer assembly for a pressure vessel
08/02/2012US20120195446 Systems and methods to provide communication, positioning and monitoring of user status
07/2012
07/24/2012US8227879 Systems and methods for mounting inertial sensors
07/18/2012EP1791388B1 Mat for acoustic apparatus
07/11/2012EP2473830A1 A mems stress concentrating structure for mems sensors
07/11/2012EP1869947B1 Method and apparatus for communicating sound over an optical link
07/11/2012CN202334884U 煤矿综采工作面骨传导通讯设备 Coal Mining Face in bone conduction communication equipment
07/11/2012CN102577655A Mechanical movements adjusted by electromagnetic probe
07/11/2012CN102574578A Complex balancing of a rotating mechanical part
07/11/2012CN102572667A Flexible and transparent thermotropic sounding apparatus
07/04/2012CN101622534B Ultrasonic inspection equipment
06/2012
06/28/2012US20120163635 Helical Antenna Apparatus and Method of Forming Helical Antenna
05/2012
05/23/2012CN202231863U Acoustic energy converting device for pressure vessel
05/23/2012CN101707504B Optical fiber intercome device
05/10/2012WO2012060102A1 Porous silica body, and optical microphone using same
05/09/2012CN202218397U Plasma loudspeaker
05/09/2012CN102450036A Sound wave generator, method of producing same, and method of generating sound wave using sound wave generator
05/08/2012US8172998 Ionic liquid is selected from substituted or unsubstituted pyridinium compounds, pyridazinium compounds, pyrimidinium compounds, pyrazonium compounds, imadazolium compounds, pyrazolium compounds, thiazolium compounds, oxazolium compounds, and triazolium compounds;
04/2012
04/25/2012EP2445233A2 Sound to light converter and sound field visualizing system
04/25/2012CN102427573A 基于自混合干涉测量方法的实时语音信号拾取装置 Based on self-mixing interference measurement methods, real-time voice signal pickup
04/18/2012EP1218716B1 Unitary transducer control system
04/10/2012US8154094 Micromechanical component having a cap having a closure
04/04/2012CN102405655A Hybrid acoustic/electric signal converting device
03/2012
03/22/2012US20120067197 Suspended drum microphone system
03/21/2012EP2432250A1 Multifunctional micro speaker
03/14/2012CN102378094A Verfahren und vorrichtung zur aktiven dampfung eines akustischen wandlers
03/08/2012WO2012029236A1 Optical microphone
03/07/2012EP1772039B1 Acoustic transducer comprising a plurality of coaxially arranged diaphragms
02/2012
02/23/2012WO2011149222A3 Hybrid acoustic/electric signal converting device
02/16/2012US20120039491 inertial type acoustic transducer
01/2012
01/25/2012EP2410768A1 MEMS type acoustic pressure impulse generator
01/19/2012US20120014553 Gaming headset with programmable audio paths
01/18/2012EP2407017A2 Mechanical movements adjusted by electromagnetic probe
1 2 3 4 5 6 7 8 9 10 11 12 13 ... 16