| Patents for H04R 3 - Circuits for transducers (18,190) |
|---|
| 01/27/2009 | US7483540 Automatic audio system equalizing |
| 01/22/2009 | WO2009011108A1 Vibration device and acoustic system |
| 01/22/2009 | US20090022335 Dual Adaptive Structure for Speech Enhancement |
| 01/22/2009 | US20090022330 System for processing sound signals in a vehicle multimedia system |
| 01/21/2009 | EP1872620B1 Apparatus and method for controlling a plurality of loudspeakers by means of a graphic user interface |
| 01/21/2009 | CN201185471Y Circuit for processing household karaoke machine microphone sound effect |
| 01/21/2009 | CN201185466Y Bluetooth molding acoustic enclosure |
| 01/21/2009 | CN101351058A Microphone array and method for implementing voice signal enhancement |
| 01/21/2009 | CN101349152A Acoustic transducers suitable for underground |
| 01/21/2009 | CN100455143C Realplayer |
| 01/21/2009 | CN100454665C connection parts for electrical cable |
| 01/21/2009 | CN100454028C Impedance measuring circuit, its method, and capacitance measuring circuit |
| 01/15/2009 | WO2009009568A2 Augmented elliptical microphone array |
| 01/15/2009 | WO2009008907A1 Acoustic echo reduction in mobile terminals |
| 01/15/2009 | WO2009008068A1 Automatic sound field correction device |
| 01/15/2009 | DE112007000623T5 Zwei-Draht-Mikrofonschaltung Two-wire microphone circuit |
| 01/14/2009 | CN201182005Y Solar microphone with energy-saving function |
| 01/14/2009 | CN201182004Y Microphone with automatic gain control function |
| 01/14/2009 | CN101346896A Echo suppressing method and device |
| 01/14/2009 | CN101346895A Echo suppressing method and device |
| 01/14/2009 | CN100450442C Separation of and used method for transmitting and recieving in ultrasonic scanning |
| 01/13/2009 | US7477752 Loudspeaker system |
| 01/13/2009 | US7477751 Method and apparatus for sound transduction with minimal interference from background noise and minimal local acoustic radiation |
| 01/13/2009 | US7477750 Signal delay time measurement device and computer program therefor |
| 01/08/2009 | WO2009004983A1 Loudspeaker apparatus |
| 01/08/2009 | WO2009004718A1 Musical sound emphasizing device, musical sound emphasizing method, musical sound emphasizing program, and recording medium |
| 01/08/2009 | WO2008113822A3 Headset |
| 01/08/2009 | US20090010458 Wireless transmitter and microphone based communications system |
| 01/08/2009 | US20090010450 Microphone Array With Rear Venting |
| 01/08/2009 | US20090010449 Microphone Array With Rear Venting |
| 01/08/2009 | US20090010444 Method and device for personalized voice operated control |
| 01/07/2009 | EP2012555A1 Signal separating device, signal separating method, information recording medium, and program |
| 01/07/2009 | EP0976208B1 Acoustic feedback elimination using adaptive notch filter algorithm |
| 01/07/2009 | CN201178505Y Acoustic rhythm controlled lamp apparatus |
| 01/07/2009 | CN201178491Y Micro loudspeaker apparatus integrating filter circuit and power regulation circuit |
| 01/07/2009 | CN201178490Y Micro loudspeaker apparatus |
| 01/07/2009 | CN201177964Y In-vehicle active sound eliminating system |
| 01/07/2009 | CN101340738A Super large power electromagnetic suction push-pull driving sound source |
| 01/07/2009 | CN101340736A POP noise suppressing circuit |
| 01/06/2009 | US7475014 Method and system for tracking signal sources with wrapped-phase hidden markov models |
| 01/06/2009 | US7474755 Automatic microphone equalization in a directional microphone system with at least three microphones |
| 01/06/2009 | US7474752 Audio frequency range adaptation |
| 01/06/2009 | CA2502160C Set volume control device for on-vehicle audio system |
| 01/02/2009 | DE19548149B4 Audio-Einrichtung in einem Kraftfahrzeug Audio device in a motor vehicle |
| 01/01/2009 | US20090003630 Electronic Device and Acoustic Playback Method |
| 01/01/2009 | US20090003629 Programmable Microphone |
| 01/01/2009 | US20090003628 Drivers and methods for driving a load |
| 01/01/2009 | US20090003626 Dual Omnidirectional Microphone Array (DOMA) |
| 01/01/2009 | US20090003625 Dual Omnidirectional Microphone Array (DOMA) |
| 01/01/2009 | US20090003624 Dual Omnidirectional Microphone Array (DOMA) |
| 01/01/2009 | US20090003623 Dual Omnidirectional Microphone Array (DOMA) |
| 01/01/2009 | US20090003622 Advanced Speech Encoding Dual Microphone Configuration (DMC) |
| 01/01/2009 | US20090003621 Sound-direction detector having a miniature sensor |
| 01/01/2009 | US20090003618 Headphone driver/charge pump combination |
| 01/01/2009 | US20090003616 Headphoning |
| 01/01/2009 | US20090003615 Audio System Providing For Filter Coefficient Copying |
| 01/01/2009 | US20090002476 Microphone array for a camera speakerphone |
| 12/31/2008 | WO2008134530A3 A capacitive microphone with integrated cavity |
| 12/31/2008 | WO2008005702B1 Apparatus and method for processing an audio signal |
| 12/31/2008 | WO2008005702A4 Apparatus and method for processing an audio signal |
| 12/31/2008 | EP2009785A2 Method and apparatus for providing end user adjustment capability that accommodates hearing impaired and non-hearing impaired listener preferences |
| 12/31/2008 | EP1520395B1 Stationary spectral power dependent audio enhancement system |
| 12/31/2008 | EP1175792B1 Mobile communication terminal and car mounted electronic device |
| 12/31/2008 | CN201174252Y Multifunctional singing and reading accompany device of music player |
| 12/31/2008 | CN101336561A Control circuitry for providing an interface between connectable terminal and peripheral device circuitry |
| 12/31/2008 | CN101336009A Computer controlled amplifier and speaker system with power conservation feature |
| 12/31/2008 | CN101335578A Mixing system |
| 12/30/2008 | US7472048 Direct digital drive audio system and method |
| 12/30/2008 | US7471987 Determining location of an audience member having a portable media monitor |
| 12/30/2008 | US7471799 Method for noise reduction and microphonearray for performing noise reduction |
| 12/30/2008 | US7471798 Microphone array having a second order directional pattern |
| 12/30/2008 | US7471797 Networked sound masking system with centralized sound masking generation |
| 12/30/2008 | CA2538320C Mobile wireless communications device having improved rf immunity of audio transducers to electromagnetic interference (emi) |
| 12/25/2008 | US20080320479 Telecom adapter layer system, and method and apparatus for acquiring network element information |
| 12/25/2008 | US20080317262 Microphone Having an Output Signal Amplifier |
| 12/25/2008 | US20080317260 Sound discrimination method and apparatus |
| 12/25/2008 | US20080317259 Method and apparatus for noise suppression in a small array microphone system |
| 12/25/2008 | US20080316338 Electronic device, video camera apparatus, and control method therefor |
| 12/24/2008 | WO2008157421A1 Dual omnidirectional microphone array |
| 12/24/2008 | WO2008156941A1 Sound discrimination method and apparatus |
| 12/24/2008 | WO2008155312A1 Electrostatic device for damping a mechanical vibration movement of a resonant moving object |
| 12/24/2008 | WO2008103672B1 Microfabricated microphone |
| 12/24/2008 | EP2007168A2 Voice conference device |
| 12/24/2008 | EP2005786A2 Digital circuit arrangements for ambient noise-reduction |
| 12/24/2008 | EP2005414A1 A device for and a method of processing data |
| 12/24/2008 | EP1532841A4 Programmable auditory prosthesis with trainable automatic adaptation to acoustic conditions |
| 12/24/2008 | CN201171201Y Novel bluetooth earphone |
| 12/24/2008 | CN101331793A 声音发射和采集装置 Sound emission and collection device |
| 12/24/2008 | CN101330771A Series frequency-reducing type frequency divider |
| 12/24/2008 | CN101330770A Audio system capable of controlling open and close through input signal level and on-off control method thereof |
| 12/24/2008 | CN101330769A Voice input-output device and communication device |
| 12/24/2008 | CN100446554C Digital loudspeaker |
| 12/24/2008 | CN100446531C Karaoke making method and playing method for wireless network and wireless hand-held device |
| 12/24/2008 | CN100446530C Generating calibration signals for an adaptive beamformer |
| 12/18/2008 | WO2008152720A1 Sound image positioning control device, sound image positioning control method, sound image positioning control program, and recording medium |
| 12/18/2008 | WO2008101198A3 Triangular microphone assembly for use in a vehicle accessory |
| 12/18/2008 | US20080310655 Programmable integrated microphone interface circuit |
| 12/18/2008 | US20080310649 Sound collector and sound recorder |
| 12/18/2008 | US20080310646 Audio signal processing method and apparatus for the same |
| 12/17/2008 | EP2002687A1 Ambient noise-reduction control system |