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)
10/2012
10/17/2012CN102739183A Audio interface matching identification method and device for mobile terminal, and electronic signature tool
10/17/2012CN101646114B Method and device for automatically regulating tone quality of electroacoustic equipment
10/17/2012CN101437183B Earplug type bone conduction receiver-transmitter
10/16/2012US8290537 Sidetone adjustment based on headset or earphone type
10/16/2012US8290178 Sound source characteristic determining device
10/16/2012US8290177 Sound zoom method, medium, and apparatus
10/16/2012US8288971 Integrated and programmable microphone bias generation
10/16/2012CA2512832C Circuit and method for providing an auto-off and/or auto-on capability for an audio device
10/11/2012WO2012138794A1 Integrated echo cancellation and noise suppression
10/11/2012WO2012112374A3 Acoustic horn gain managing
10/10/2012EP2509337A1 Accelerometer vector controlled noise cancelling method
10/10/2012EP2508010A1 An apparatus
10/10/2012CN202488711U Inner circuit protection system of loudspeaker
10/10/2012CN202488666U Network draw-type digital power amplification system
10/10/2012CN202488665U Muting circuit of audio and video equipment and audio and video equipment
10/10/2012CN202488664U Circuit capable of eliminating impact sound of startup and shutdown
10/10/2012CN202488663U Signal front-stage processor of power amplifier
10/10/2012CN202488647U Earphone wire splitter with simple amplifying function
10/10/2012CN102724609A Portable wireless combined loudspeaker box system and control method thereof
10/10/2012CN102724608A Central processing unit (CPU) power supply circuit of car audio
10/10/2012CN102724607A Digital matrix soundbox manager
10/10/2012CN102724601A Single-tube frequency modulation wireless microphone
10/10/2012CN101472209B Apparatus for processing audio
10/10/2012CN101390440B Wearable terminal, processor for controlling wearable terminal and method therefor
10/09/2012US8285896 Data conversion system
10/09/2012US8284960 User adjustable volume control that accommodates hearing
10/09/2012US8284952 Modeling of a microphone
10/08/2012CA2736684A1 Systems and methods for adjusting audio levels in a plurality of audio signals
10/04/2012WO2012135184A1 Paired microphones for rejecting noise
10/04/2012WO2012135183A1 Rejecting noise with paired microphones
10/04/2012WO2012135182A1 Measuring transducer displacement
10/04/2012WO2012134274A2 Isolator device for passing through a signal
10/04/2012WO2012133058A1 Electronic device and information transmission system
10/04/2012WO2012132262A1 Oscillator
10/04/2012WO2012132261A1 Oscillator and electronic device
10/04/2012WO2012131825A1 Oscillator and electronic device
10/04/2012WO2012130989A1 Electret microphone
10/04/2012US20120250900 Signal processing apparatus, signal processing method, and program
10/04/2012US20120250898 Processing Chip for a Digital Microphone and related Input Circuit and a Digital Microphone
10/04/2012US20120250897 Dual Cell MEMS Assembly
10/04/2012US20120250881 Microphone biasing
10/04/2012CA2830465A1 Isolator device for passing through a signal
10/03/2012EP2506598A2 Dual cell MEMS assembly
10/03/2012EP2505001A1 An apparatus
10/03/2012CN202475746U Audio squelch system
10/03/2012CN202475745U POP muting circuit
10/03/2012CN202475744U Power on instant mute circuit
10/03/2012CN202475743U Device for controlling volume of soundbox by voice
10/03/2012CN202475742U Volume control system of voice box
10/03/2012CN202475741U Two-channel audio line transmission denoiser and vehicle-mounted sound motherboard
10/03/2012CN202475740U Drive circuit, audio frequency driving unit, and alarming horn of audio frequency chip
10/03/2012CN202475739U Efficient computer sound box circuit supplied with power by USB
10/03/2012CN202475734U Sound box capable of automatically controlling volume
10/03/2012CN202475722U Intelligent earphone for automatically perceiving car horns
10/03/2012CN202475713U Integrated microphone based on pure voice operation
10/03/2012CN202472487U Computer with built-in power amplification function
10/03/2012CN102711019A Network drawing type digital power amplifier system
10/03/2012CN102711018A Wireless microphone
10/03/2012CN102711017A Method, device and system for processing sound
10/03/2012CN102711016A Automatic volume regulating equipment and volume regulating method thereof
10/03/2012CN102711015A Method and device for controlling loudspeaker array sound field based on quadratic residue sequence combination
10/03/2012CN102711006A Sound acquisition system
10/03/2012CN102708874A Noise adaptive beamforming for microphone arrays
10/03/2012CN101690139B Acoustic echo reduction in mobile terminals
10/03/2012CN101640517B Switching audio amplifier, digital speaking device and audio amplification method
10/02/2012US8280462 Distributed sound enhancement
10/02/2012US8280076 System and method for audio system configuration
10/02/2012US8280072 Microphone array with rear venting
10/02/2012US8280071 Voice output system and method
10/02/2012US8280069 Noise reduction apparatus
10/02/2012US8280068 Ambient audio transformation using transformation audio
10/02/2012US8280067 Integrated ambient audio transformation device
10/02/2012US8280065 Method and system for active noise cancellation
10/02/2012US8279357 System and methods for television with integrated sound projection system
10/02/2012US8276254 Surface micromachined differential microphone
09/2012
09/27/2012US20120245933 Adaptive ambient sound suppression and speech tracking
09/27/2012US20120243709 Integrated audio video signal processing system using centralized processing of signals
09/27/2012US20120243702 Method and arrangement for processing of audio signals
09/27/2012DE102011006129A1 Hörvorrichtung mit Rückkopplungsunterdrückungseinrichtung und Verfahren zum Betreiben der Hörvorrichtung Hearing device with feedback suppression device and method of operating the hearing
09/26/2012EP2503791A2 Mixing apparatus
09/26/2012CN202455522U Power-on self-starting plug-in small sound box
09/26/2012CN202455521U Microphone (MIC) input circuit and vehicle-mounted system
09/26/2012CN202455489U Wireless loudspeaker box and system thereof
09/26/2012CN102696239A An apparatus
09/26/2012CN102695114A Audio processing device, system, use and method
09/26/2012CN102695113A Temperature compensation system and temperature compensation method
09/26/2012CN102695112A Automobile player and volume control method thereof
09/26/2012CN102695111A Processing method of anti-interference digital microphone
09/26/2012CN102695109A Earphone with automatic sensing function
09/26/2012CN102695107A Combined microphone for teaching
09/26/2012CN101556466B Method for automatically searching and fixing natural frequency of electric horn of motor vehicle
09/26/2012CN101547389B Headphone device, signal processing device, and signal processing method
09/25/2012US8275162 Method for operating a hearing device and microphone system for hearing device
09/25/2012US8275161 Hearing device employing signal processing based on design-related parameters and corresponding method
09/25/2012US8275148 Audio processing apparatus and method
09/25/2012US8275147 Selective shaping of communication signals
09/25/2012US8275145 Vehicle communication system
09/20/2012WO2012124422A1 Audio recording device
09/20/2012WO2012124044A1 Vibration signal generating device and method, computer program, and sensory audio system
09/20/2012WO2012124043A1 Vibration signal generating device and method, computer program, and sensory audio system
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