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)
08/2012
08/29/2012CN202404911U Paramilitary flow audio frequency recording system for power transformation overhaul
08/29/2012CN1930915B A method and system for processing sound signals
08/29/2012CN1799283B 阵列扬声器系统 Array speaker system
08/29/2012CN102651835A Method and apparatus for adjusting sound quality
08/29/2012CN102651834A Mobile terminal and sound output method thereof
08/29/2012CN101400009B Microphone circuit
08/29/2012CN101385387B Digital circuit arrangements for ambient noise-reduction
08/29/2012CN101360350B Digital microphone
08/29/2012CN101278596B Directional audio capturing
08/29/2012CN101137250B Vehicle-mounted acoustics self-adaptive sound field regulating method and device
08/28/2012US8255209 Noise elimination method, apparatus and medium thereof
08/28/2012US8254598 Programmable integrated microphone interface circuit
08/28/2012US8254590 System and method for intelligibility enhancement of audio information
08/23/2012WO2012111760A1 Acoustic guiding system
08/23/2012WO2012111043A1 Signal processing method, signal processing device, reproduction device, and program
08/23/2012WO2012109744A1 Method and apparatus for television band pilot sensing
08/23/2012WO2012058465A3 Transitioning multiple microphones from a first mode to a second mode
08/23/2012US20120214544 Audio Localization Using Audio Signal Encoding and Recognition
08/23/2012US20120213388 Unidirectional Mechanical Amplification in a Microphone
08/23/2012US20120212681 Sound control circuit for a digital audiovisual reproduction system
08/23/2012CA2765048A1 Land mobile radio and adapter for use with standard mobile phone headset
08/22/2012EP2490460A1 Acoustic feedback suppression for communication terminals
08/22/2012EP2490459A1 Method for voice signal blending
08/22/2012EP2490458A1 Control of a loudspeaker unit
08/22/2012CN202395969U Automatic mute secure earphone
08/22/2012CN202395948U Multimedia playback device capable of charging wireless earphone
08/22/2012CN102647652A Audio acquisition and processing circuit for vehicle-mounted talkback system
08/22/2012CN102647651A Volume regulation circuit
08/22/2012CN102647650A Loudspeaker box
08/22/2012CN102647646A Bracelet type Bluetooth earphone and bracelet type Bluetooth earphone circuit
08/22/2012CN101163351B Earphone
08/21/2012US8249269 Sound collecting device, sound collecting method, and collecting program, and integrated circuit
08/21/2012US8249071 Audio related system communication protocol
08/21/2012CA2717521C Preprogrammed hearing assistance device with program selection using a multipurpose control device
08/16/2012WO2012109019A1 System and method for wind detection and suppression
08/16/2012WO2012108550A1 Musical instrument case
08/16/2012WO2012107561A1 Spatial adaptation in multi-microphone sound capture
08/16/2012WO2012107270A1 Microphone arrangement
08/16/2012WO2011107545A3 Method for adjusting a directional hearing device
08/16/2012US20120207324 Multiple Microphone System
08/16/2012US20120207323 Method and apparatus for sound source localization using microphones
08/16/2012US20120207322 Microphone array with rear venting
08/15/2012EP2487931A2 Audio accessory type detection and connector pin signal assignment
08/15/2012EP2487930A1 Sound signal output apparatus and sound signal output method
08/15/2012EP2487929A2 Sound signal output apparatus, speaker apparatus, and sound signal output method
08/15/2012EP2486662A1 Self-discovery of an rf configuration for a wireless system
08/15/2012EP2486561A1 Reconstruction of a recorded sound field
08/15/2012EP2342845B1 Biasing arrangement, electronic apparatus, biasing method, and computer program
08/15/2012EP2324476B1 Multiple microphone switching and configuration
08/15/2012CN202385278U High-performance hearing aid
08/15/2012CN202385277U Hearing aid made of monolithic integrated circuit
08/15/2012CN202385268U Active loudspeaker box
08/15/2012CN202385267U Shutdown rapid sound attenuation circuit
08/15/2012CN202385266U Vehicle volume tracking control device
08/15/2012CN202385253U Built-in noise reduction earphone for AM/FM radio set
08/15/2012CN102640518A Acoustic feedback suppression device, microphone device, amplifier device, sound amplification system, and acoustic feedback suppression method
08/15/2012CN102640517A Self steering directional loud speakers and a method of operation thereof
08/15/2012CN102638746A Analog front-end circuit with low power consumption for medical equipment
08/15/2012CN102638745A Earphone compatible method and system for terminal equipment and interface circuit of terminal equipment
08/15/2012CN102638744A Sound signal output apparatus, speaker apparatus, and sound signal output method
08/15/2012CN102638743A Audio accessory type detection and connector pin signal assignment
08/15/2012CN102638742A Sound signal output apparatus and sound signal output method
08/15/2012CN102638741A Method for fully eliminating earphone POP noise
08/15/2012CN102638736A Control of a loudspeaker unit
08/15/2012CN101662714B Microphone array designing method for locating pickup in complex sound field based on time reversal
08/15/2012CN101349152B Acoustic transducers suitable for underground
08/15/2012CN101009954B Audio reproducing apparatus and method
08/14/2012US8243977 Media player system, media player, and earphone
08/14/2012US8243959 Audio output control device and audio output control method
08/14/2012US8243958 Receiver
08/14/2012US8243956 Auto bias microphone system for use with multiple loads and method of forming same
08/14/2012US8243952 Microphone array calibration method and apparatus
08/14/2012US8243951 Sound emission and collection device
08/14/2012US8243950 Teleconferencing apparatus with virtual point source production
08/14/2012US8243944 Foldable wireless voice muffling device for mobile communications
08/14/2012US8243751 Methods of transmitting and receiving data content in a communications network, and corresponding computer-readable storage media and devices
08/14/2012CA2608395C Method of correction of acoustic parameters of electro-acoustic transducers and device for its realization
08/09/2012WO2012105844A1 Method for enhancing audio performance by selective capturing and processing of audio from a set of microphones
08/09/2012WO2012105254A1 Electronic device
08/09/2012WO2012105253A1 Electronic device
08/09/2012WO2012105183A1 Audio output device
08/09/2012US20120201401 Method and apparatus for reducing current consumption of mobile terminal
08/09/2012DE102011010506A1 Mikrofonanordnung Microphone array
08/08/2012CN202374436U Pop noise suppression circuit
08/08/2012CN202374435U Automobile AUX interface extension device
08/08/2012CN202368468U Vehicle-mounted engine sounding simulation device
08/08/2012CN102630385A Audio zooming process within an audio scene
08/08/2012CN102630070A Sound play control method and sound play device
08/08/2012CN102630069A Volume adjusting circuit used for sound system
08/08/2012CN102630067A Multimedia reproducing system and driving method thereof
08/08/2012CN102629472A Noise rejection apparatus and noise rejection method
08/08/2012CN101507291B Intercom device and wiring system using the same
08/08/2012CN101194535B Method for correcting electroacoustic converter acoustic paramenter and device accomplishing the method
08/07/2012US8238584 Voice signal transmitting/receiving apparatus
08/07/2012US8238583 Microphone circuit and method for analog-to-digital conversion therein
08/07/2012US8238581 Powered subwoofer/speaker remote turn-on function
08/07/2012US8238580 Module having a remote turn-on function for use with a powered subwoofer/speaker or other audio/visual electrical equipment
08/07/2012US8238578 Electroacoustical transducing with low frequency augmenting devices
08/07/2012US8238574 Method for determining a time delay for time delay compensation
08/07/2012US8238573 Conference apparatus
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