Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 3 - Circuits for transducers
Patents for H04R 3 - Circuits for transducers (18,190)
11/2010
11/04/2010DE112008002187T5 Hinter-dem-Ohr-Hörhilfe, deren Mikrophon in einen Eingang des Ohrkanals gesetzt ist Behind-the-ear hearing aid, the microphone is placed in an entrance of the ear canal
11/04/2010DE102009018799A1 Method for controlling sound reproduction device in radio receiver and TV set for elder people, involves issuing message to user and applying limit of maximum allowable sound level according to time period
11/04/2010CA2760178A1 Spectral management system
11/03/2010EP2247122A1 Method and apparatus for controlling the reproduction of audio contents by two loudspeakers
11/03/2010EP2247121A1 Speaker characteristic correction device, speaker characteristic correction method, and speaker characteristic correction program
11/03/2010EP2247120A2 Passive group delay beam forming
11/03/2010EP2245865A1 Signaling microphone covering to the user
11/03/2010EP2245862A1 Improving sound quality by intelligently selecting between signals from a plurality of microphones
11/03/2010EP2245861A1 Enhanced blind source separation algorithm for highly correlated mixtures
11/03/2010EP1946606B1 Directional audio capturing
11/03/2010EP1652404B1 Method and device for noise reduction
11/03/2010CN201623840U Muting circuit
11/03/2010CN201623839U Power amplifier
11/03/2010CN201623838U Electronic noiseproof earphone system
11/03/2010CN201623837U Power amplification circuit of mini sounder
11/03/2010CN201623836U Wireless power supply sound box
11/03/2010CN101878657A Voice input/output automatic switching circuit used in hand-held microphone with speaker of communication device such as transceiver
11/03/2010CN101877811A Microelectromechanical system (mems) device with senstivity trimming circuit and trimming process
11/03/2010CN101877808A Quiet zone control system
11/03/2010CN101877807A Loudspeaker and method for playing sound source
11/03/2010CN101877750A Echo removing apparatus, echo removing method, and communication apparatus
11/03/2010CN101309644B Ultrasound diagnostic apparatus and method of calibrating the same
11/03/2010CN101009950B A continuous-processing blind separation device for the mixed audio
11/02/2010US7826625 Method and apparatus for frame-based loudspeaker equalization
11/02/2010US7826624 Speakerphone self calibration and beam forming
11/02/2010US7826623 Handsfree system for use in a vehicle
11/02/2010US7826622 Constant-beamwidth loudspeaker array
10/2010
10/28/2010WO2010122608A1 Mixer device, player, reproduction system, mixer device control method, player control method, and program
10/28/2010WO2010122441A1 Driving of multi-channel speakers
10/28/2010WO2010121916A1 Cross-barrier communication system and method
10/28/2010WO2010121536A1 Method and apparatus for correcting channel delay parameters of multi-channel signal
10/28/2010US20100272291 Capacitor microphone and impedance converter therefor
10/28/2010US20100272287 Patterned implantable electret microphone
10/28/2010US20100272286 Acoustic camera
10/28/2010US20100272285 Masking of pure tones within sound from a noise generating source
10/27/2010EP1428234B1 Visual indication of uninstalled control panel functions
10/27/2010EP1232670B1 A method for analyzing an acoustical environment and a system to do so
10/27/2010CN1859813B Signal switching method for internal and external microphone
10/27/2010CN101872637A Reproduction device and reproduction method
10/27/2010CN101872632A 集成电路 IC
10/26/2010US7822496 Audio signal processing method and apparatus
10/26/2010US7822213 System and method for estimating speaker's location in non-stationary noise environment
10/26/2010CA2582473C Acoustic apparatus and telephone conversation apparatus
10/21/2010WO2010120394A2 Method for determining inverse filter from critically banded impulse response data
10/21/2010WO2010120376A2 Method and apparatus for dynamic partial reconfiguration on an array of processors
10/21/2010WO2010119253A1 Processing audio signals
10/21/2010WO2010119167A1 An apparatus, method and computer program for earpiece control
10/21/2010US20100266146 Integrated Circuit Device, Voice Input Device and Information Processing System
10/21/2010US20100266145 Apparatus, methods and computer programs for converting sound waves to electrical signals
10/21/2010US20100266140 Voice input/output automatic switching circuit used in hand-held microphone with speaker of communication device such as transceiver
10/21/2010US20100266138 Device and method for active sound damping in a closed interior space
10/21/2010CA2758868A1 Digital audio communication and control in a live performance venue
10/20/2010EP2242289A1 Hearing assistance system with own voice detection
10/20/2010EP2242286A1 Sound collecting device, sound collecting method, sound collecting program, and integrated circuit
10/20/2010CN101867855A Audio power amplifier unit of railway vehicle
10/20/2010CN101867854A Mute control circuit
10/19/2010US7817806 Sound pickup method and apparatus, sound pickup and reproduction method, and sound reproduction apparatus
10/19/2010US7817805 System and method for steering the directional response of a microphone to a moving acoustic source
10/19/2010US7817804 Acoustic measuring system for locating noise sources
10/19/2010CA2523931C Detection device
10/14/2010WO2010118313A1 Systems and methods for acousto-haptic speakers
10/14/2010WO2010116925A1 Signal processing device and signal processing method
10/14/2010WO2010116153A1 Optimal modal beamformer for sensor arrays
10/14/2010WO2010115972A1 Electroacoustic device, in particular for a concert hall
10/14/2010US20100260346 Voice Input Device, Method of Producing the Same, and Information Processing System
10/14/2010CA2757990A1 Electroacoustic device, in particular for a concert hall
10/13/2010EP2239958A2 An apparatus for processing an audio signal and method thereof
10/13/2010EP2238592A2 Method for reducing noise in an input signal of a hearing device as well as a hearing device
10/13/2010CN201608869U 一种可供光电装置于卫浴设备的音频控制器 A photovoltaic device is available in sanitary equipment Audio Controller
10/13/2010CN201608868U 一种组合音响 One kind of music center
10/13/2010CN201608867U 用于节约电池电力的设备 The equipment used to conserve battery power
10/13/2010CN201602197U 音乐头盔 Music helmet
10/13/2010CN1929697B Optimization method and device for loudspeaker array
10/13/2010CN1914950B First-order loudspeaker crossover network
10/13/2010CN1801590B Voltage supply circuit and microphone unit
10/13/2010CN1741686B Voice collecting device and echo cancellation processing method
10/13/2010CN1610449B Microphone apparatus, reproducing apparatus, and image taking apparatus
10/13/2010CN101860780A Output indicator for sound box
10/13/2010CN101860779A Time domain broadband harmonic region beam former and beam forming method for spherical array
10/13/2010CN101860778A Amplifier circuit of capacitor microphone
10/13/2010CN101860777A Portable electronic device
10/12/2010US7813822 Intelligent electronic appliance system and method
10/07/2010WO2010113328A1 Audio output device
10/07/2010US20100255878 Audio filter
10/07/2010US20100254547 Piezoelectric mems microphone
10/07/2010US20100254543 Conference microphone system
10/06/2010EP2237573A1 Adaptive feedback cancellation method and apparatus therefor
10/06/2010EP2237570A2 Audio signal processing apparatus and speaker apparatus
10/06/2010EP2237569A1 Motional feedback system
10/06/2010CN201601813U 一种耳机输出电路及移动通讯终端 One kind of headphone output circuit and mobile communication terminal
10/06/2010CN201601811U 可附加式低音炮与便携式音箱组合装置 Subwoofer can be added in combination with a portable speaker system
10/06/2010CN201601604U 一种迷你音响开关电源 One kind of mini stereo switching power supply
10/06/2010CN101855915A Full range planar magnetic microphone and arrays thereof
10/06/2010CN101854575A Biasing circuit for a microelectromechanical acoustic transducer and related biasing method
10/06/2010CN101854574A Microphone circuit in dual-mode dual-standby mobile terminal and implementation method thereof
10/06/2010CN101854573A Sound structure and electronic device using same
10/06/2010CN101854570A Control device, control method and control program
10/06/2010CN101854569A Gas-source free hooter
10/06/2010CN101853680A Reproducing device and reproduction method
10/06/2010CN101853560A RF (radio frequency) remote-controller with an earphone and control method thereof
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