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
08/07/2012US8238569 Method, medium, and apparatus for extracting target sound from mixed sound
08/07/2012US8238547 Sound pickup apparatus and echo cancellation processing method
08/04/2012CA2766527A1 Systems and methods for encoding control messages in an audio bitstream
08/02/2012WO2012102464A1 Ear microphone and voltage control device for ear microphone
08/02/2012WO2012102051A1 Induction signal elimination circuit
08/02/2012WO2012101713A1 Navigation device
08/02/2012DE102012200637A1 Schallwellengenerator Sound wave generator
08/02/2012DE102011003470A1 Headset und Hörer Headset and the handset
08/01/2012EP2482566A1 Method for generating an audio signal
08/01/2012EP2481222A2 Volume adjustment based on listener position
08/01/2012EP1624718B1 Array speaker system
08/01/2012CN202364364U Electronic product and audio power amplifier thereof
08/01/2012CN102625219A Listening system comprising an alerting device and a listening device
08/01/2012CN102625213A Audio system squeaking processing method and audio system
08/01/2012CN102625207A Active noise-prevention earplug and sound signal processing method thereof
08/01/2012CN102625205A Echo suppression for wireless handsets and headsets
08/01/2012CN102625203A Signal processing device, signal processing method, and program
07/2012
07/31/2012US8233643 System and method for amplifying low level signals provided on electrical supply power
07/31/2012US8233642 Methods and apparatuses for capturing an audio signal based on a location of the signal
07/31/2012US8233630 Test apparatus, test method, and computer program
07/31/2012US8233352 Audio source localization system and method
07/28/2012CA2747196A1 Echo suppression for wireless handsets and headsets
07/26/2012WO2012099518A1 Method and device for microphone selection
07/26/2012WO2012099223A1 Underwater communication device
07/26/2012WO2012098844A1 Vehicle-direction identification device, vehicle-direction identification method, and program therefor
07/26/2012WO2012098191A1 Audio processing device
07/26/2012WO2012071650A9 Advanced communication earpiece device and method
07/26/2012US20120191447 Method and apparatus for masking wind noise
07/26/2012US20120189147 Sound processing apparatus, sound processing method and hearing aid
07/26/2012US20120189141 Driver circuit
07/26/2012US20120189136 Donned/doffed multimedia file playback control
07/26/2012US20120188434 Method for acquiring audio signals, and audio acquisition system thereof
07/26/2012US20120188371 Stabilizing Directional Audio Input from a Moving Microphone Array
07/26/2012DE102011003168A1 Lautsprechersystem Speaker system
07/25/2012EP2478715A1 Method for acquiring audio signals, and audio acquisition system thereof
07/25/2012EP1917836B1 Noise mitigating microphone system and method
07/25/2012CN202353799U Protection circuit of loudspeaker box
07/25/2012CN202353798U Audio processor of digital cinema
07/25/2012CN202353797U Karaok television (KTV) front-mounted digital processor
07/25/2012CN202353796U Amplifier
07/25/2012CN202353795U Contactless isolating power supply circuit for electronic horn
07/25/2012CN202353794U Power amplifier with automatic mute priority function
07/25/2012CN202353764U Audio alarming connection device of industrial talkback system
07/25/2012CN202353637U Speaker and mobile phone with same
07/25/2012CN102611977A Universal-type hearing-aid function initial amplification curve and filter parameter collocation method
07/25/2012CN102611974A MEMS (micro-electro mechanical system) microphone circuit, upper computer circuit and method for accessing into programming mode
07/25/2012CN102611965A Method for eliminating influence of distance between dual-microphone de-noising mobilephone and mouth on sending loudness of dual-microphone de-noising mobilephone
07/25/2012CN102611964A Power amplification circuit and system
07/25/2012CN102611963A Intelligent sound volume adjusting system of vehicular sounder
07/25/2012CN102611962A Airspace response balance and sound field control method and device of microphone array based on wireless communication network
07/25/2012CN102611961A Method and device for switching multi-channel audios of terminal
07/25/2012CN101989836B Efficient audio amplifier and related method thereof
07/25/2012CN101370323B Apparatus capable of performing acoustic echo cancellation and a method thereof
07/24/2012US8229138 Microphone assembly with P-type preamplifier input stage
07/24/2012US8229134 Audio camera using microphone arrays for real time capture of audio images and method for jointly processing the audio images with video images
07/24/2012US8229130 Distributed acoustic conversation shielding system
07/24/2012US8229129 Method, medium, and apparatus for extracting target sound from mixed sound
07/19/2012WO2012097314A1 Variable beamforming with a mobile platform
07/19/2012WO2012096897A1 Loudness maximization with constrained loudspeaker excursion
07/19/2012WO2012096617A1 Musical dynamics alteration of sounds
07/19/2012WO2012096074A1 Audio-processing device, control method therefor, recording medium containing control program for said audio-processing device, vehicle provided with said audio-processing device, information-processing device, and information-processing system
07/19/2012WO2012096073A1 Audio-processing device, control method therefor, recording medium containing control program for said audio-processing device, vehicle provided with said audio-processing device, information-processing device, and information-processing system
07/19/2012WO2012096072A1 Audio-processing device, control method therefor, recording medium containing control program for said audio-processing device, vehicle provided with said audio-processing device, information-processing device, and information-processing system
07/19/2012WO2012066265A4 Spectrum correction system intended in particular for an auditorium
07/19/2012US20120185247 Unified microphone pre-processing system and method
07/19/2012US20120183156 Microphone system with a hand-held microphone
07/19/2012US20120182429 Variable beamforming with a mobile platform
07/19/2012CA2790796A1 Cognitive modulators
07/19/2012CA2762135A1 Amplifier system for a power converter
07/18/2012EP2477418A1 Signal processing method
07/18/2012CN202340296U 单节电池的调频无线话筒 Single cell FM wireless microphone
07/18/2012CN1929698B Sound reproduction apparatus and method of enhancing low frequency component
07/18/2012CN1816218B Mobile terminal with at least two transducers
07/18/2012CN1798452B Method of compensating audio frequency response characteristics in real-time and a sound system using the same
07/18/2012CN1447624B Automatic audio system equalization
07/18/2012CN102598708A Howling canceller
07/18/2012CN102595300A Apparatus for detecting faults of loudspeakers and loudspeaker system
07/18/2012CN102595293A Micro-electromechanical system (MEMS) microphone and packaging method thereof
07/18/2012CN102595287A Acoustic transducer and method of driving the same
07/18/2012CN102595281A Unified microphone pre-processing system and method
07/18/2012CN102595280A Speaker integrated system with sensor feedback and drive circuit
07/18/2012CN102595279A Circuit with three-stage of power-on sequence used for suppressing the pop noise in audio system
07/18/2012CN102595272A Motion earphones capable of adjusting volume automatically
07/18/2012CN101753383B Distributed mike system
07/18/2012CN101473637B 音频混合 Audio mixing
07/18/2012CN101455094B Sound emission and collection apparatus and control method of sound emission and collection apparatus
07/18/2012CN101448186B System and method for automatic regulating sound effect of a loudspeaker
07/18/2012CN101336561B Control circuitry for providing an interface between connectable terminal and peripheral device circuitry
07/18/2012CN101247672B Speaker apparatus, speaker driving apparatus and control method thereof
07/17/2012US8224012 Vehicle accessory microphone
07/17/2012US8223989 Signal processing system and method for calibrating channel signals supplied from an array of sensors having different operating characteristics
07/17/2012US8223988 Enhanced blind source separation algorithm for highly correlated mixtures
07/17/2012US8223985 Masking of pure tones within sound from a noise generating source
07/12/2012WO2012094547A1 Transducer with integrated sensor
07/12/2012WO2012093345A1 An audio system and method of operation therefor
07/12/2012WO2012092680A1 Systems and methods for tv white space spectrum sensing
07/12/2012US20120177342 Recording medium, reproduction device, program, reproduction method, and integrated circuit
07/12/2012US20120177229 Printed circuit board with an acoustic channel for a microphone
07/12/2012US20120177219 Wearable shooter localization system
07/12/2012US20120177215 Transducer with Integrated Sensor
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