| Patents for H04R 3 - Circuits for transducers (18,190) |
|---|
| 07/19/2006 | CN1805617A Headphone and hands-free loudspeaker and power amplifier and control circuit for mobile audio devices |
| 07/19/2006 | CN1805616A Integrate three-voice coil loudspeaker and its power amplifier and control circuit |
| 07/19/2006 | CN1805615A Integrate three-pole and three-voice coil loudspeaker and its power amplifier and control circuit |
| 07/19/2006 | CN1805614A Dual magnet headphone and hands-free loudspeaker and power amplifier and control circuit for mobile audio devices |
| 07/19/2006 | CN1805612A Method and apparatus for audio bass enhancement |
| 07/18/2006 | US7079660 Bass compensation device and a sound system using the device |
| 07/13/2006 | WO2006073986A2 Integrated audio video signal processing system using centralized processing of signals |
| 07/13/2006 | WO2006073607A1 Multifunction preamplifier microphone |
| 07/13/2006 | US20060153403 Signal strength imformation dependent control of small electrodynamic transducers in audio systems |
| 07/13/2006 | US20060153401 Environment adaptable loudspeaker |
| 07/13/2006 | US20060153400 Microphone and sound amplification system |
| 07/13/2006 | US20060153399 Method and apparatus for ambient sound therapy user interface and control system |
| 07/13/2006 | US20060153398 In-vehicle entertainment system |
| 07/13/2006 | US20060153391 Set-up method for array-type sound system |
| 07/13/2006 | US20060153389 Wireless audio signal transmission method for a three-dimensional sound system |
| 07/13/2006 | US20060153360 Speech signal processing with combined noise reduction and echo compensation |
| 07/12/2006 | CN1802696A Sound quality adjusting apparatus and sound quality adjusting method |
| 07/12/2006 | CN1801926A Mixed-media telecommunication call set-up |
| 07/12/2006 | CN1801611A Bass boosting processing method and device |
| 07/12/2006 | CN1801590A Voltage supply circuit and microphone unit |
| 07/12/2006 | CN1264025C Method and apparatus for coherence imaging |
| 07/11/2006 | US7076072 Systems and methods for interference-suppression with directional sensing patterns |
| 07/11/2006 | US7076070 Monolithic class D amplifier |
| 07/11/2006 | US7076069 Method of generating an electrical output signal and acoustical/electrical conversion system |
| 07/06/2006 | WO2006071405A1 Method and apparatus for audio signal enhancement |
| 07/06/2006 | US20060149401 Integrated audio video signal processing system using centralized processing of signals |
| 07/06/2006 | US20060147064 Multi-effect processing device for wireless microphone |
| 07/06/2006 | US20060147062 Voltage supply circuit and microphone unit |
| 07/06/2006 | US20060147061 Voltage supply circuit, power supply circuit, microphone unit using the same, and microphone unit sensitivity adjustment method |
| 07/06/2006 | US20060147060 Multifunction preamplifier microphone |
| 07/06/2006 | US20060147055 In-vehicle audio apparatus |
| 07/06/2006 | US20060147054 Microphone non-uniformity compensation system |
| 07/06/2006 | US20060147051 Audio system |
| 07/06/2006 | US20060146648 Signal Processing Apparatus and Signal Processing Method |
| 07/05/2006 | EP1677515A2 Integrated audio video signal processing system using centralized processing of signals |
| 07/05/2006 | EP1317869B1 A system of sound transducers with controllable directional properties |
| 07/05/2006 | CN2794087Y Parameter controller |
| 07/05/2006 | CN1799283A 阵列扬声器系统 Array speaker system |
| 07/05/2006 | CN1799279A Array speaker system |
| 07/05/2006 | CN1799278A Combined microphone-loudspeaker |
| 07/05/2006 | CN1798452A Method of compensating audio frequency response characteristics in real-time and a sound system using the same |
| 07/05/2006 | CN1798451A Sound effect process device for wireless microphone |
| 07/05/2006 | CN1797942A Analog output device of digital audio system |
| 07/05/2006 | CN1263229C Whistler detection and suppression equipment and method thereof |
| 07/04/2006 | US7072480 Hearing aid system with a hearing aid and an external processor unit |
| 07/04/2006 | US7072310 Echo canceling system |
| 06/29/2006 | WO2006069238A1 Method and apparatus for frame-based loudspeaker equalization |
| 06/29/2006 | WO2006067870A1 On-vehicle wireless hands-free device |
| 06/29/2006 | US20060140420 Eye-based control of directed sound generation |
| 06/29/2006 | US20060140417 Method and apparatus for audio signal enhancement |
| 06/29/2006 | US20060140414 Method and device for measuring sound wave propagation time between loudspeaker and microphone |
| 06/29/2006 | US20060137454 Resonance frequency sensing method, resonance frequncy selecting method, and resonance frequency sensor |
| 06/28/2006 | EP1673960A1 Communication headset with signal processing capability |
| 06/28/2006 | CN2792073Y Automatic frequency adjusting multiphone loudspeaker |
| 06/27/2006 | US7068800 Speaker apparatus |
| 06/27/2006 | US7068799 Sound field correcting method in audio system |
| 06/27/2006 | US7068798 Method and system for suppressing echoes and noises in environments under variable acoustic and highly feedback conditions |
| 06/27/2006 | US7068797 Microphone circuits having adjustable directivity patterns for reducing loudspeaker feedback and methods of operating the same |
| 06/27/2006 | US7068796 Ultra-directional microphones |
| 06/22/2006 | WO2006065473A2 Speaker diagnostics based upon driving-point impedance |
| 06/22/2006 | WO2006064800A1 Sound output control apparatus |
| 06/22/2006 | WO2006064699A1 Sound source separation system, sound source separation method, and acoustic signal acquisition device |
| 06/22/2006 | WO2006064535A1 Receiver device having muting function |
| 06/22/2006 | WO2006064093A1 Method and devices for improving the quality of signal transmission and reproduction |
| 06/22/2006 | US20060133623 System and method for microphone gain adjust based on speaker orientation |
| 06/22/2006 | US20060133622 Wireless telephone with adaptive microphone array |
| 06/22/2006 | US20060133621 Wireless telephone having multiple microphones |
| 06/22/2006 | US20060133620 Method and apparatus for frame-based loudspeaker equalization |
| 06/21/2006 | EP1671516A1 Device and method for producing a low-frequency channel |
| 06/21/2006 | CN1792084A Microphone circuit having adjustable directivity pattern for reducing loudspeaker feedback and method of operating the same |
| 06/21/2006 | CN1791902A Method and device for extending the audio signal band |
| 06/21/2006 | CN1791284A Nasal bone conduction wireless communication transmitting device |
| 06/21/2006 | CN1791283A Nasal bone conduction hearing aid |
| 06/21/2006 | CN1790484A Viewing and listening content provision system and viewing and listening content provision method |
| 06/20/2006 | US7065221 Speaker apparatus |
| 06/20/2006 | US7065220 Microphone array having a second order directional pattern |
| 06/20/2006 | US7065219 Acoustic apparatus and headphone |
| 06/20/2006 | US7062839 Method of manufacturing thin-film magnetic head |
| 06/15/2006 | WO2006062120A1 Microphone device |
| 06/15/2006 | WO2006061878A1 Window communication device |
| 06/15/2006 | US20060126878 Audio playback method and apparatus using line array speaker unit |
| 06/15/2006 | US20060126862 Distributed audio system |
| 06/15/2006 | US20060126857 Speaker diagnostics based upon driving-point impedance |
| 06/15/2006 | US20060126855 Method and device for determining acoustical transfer impedance |
| 06/14/2006 | EP1670282A1 Directional loudspeaker control system |
| 06/14/2006 | EP1669983A1 System for suppressing rain noise |
| 06/14/2006 | EP0951800A4 Six-axis surround sound processor with automatic balancing and calibration |
| 06/14/2006 | DE19861341B4 Method of controlling howling signals in telephone circuit |
| 06/14/2006 | DE102005051093A1 Tonausgabesystem und Verfahren Tonausgabesystem and procedures |
| 06/14/2006 | DE102004050304B3 Verfahren zur Reduktion von Rückkopplungen bei einem Akustiksystem und Signalverarbeitungsvorrichtung A method of reducing feedback in an acoustic system and signal processing device |
| 06/14/2006 | CN1788524A Microphone speaker body forming type of bi-directional telephone apparatus |
| 06/14/2006 | CN1259805C High performance echo suppressor |
| 06/14/2006 | CN1259647C Method and device for separating mixed signals |
| 06/13/2006 | US7062041 Device and method for carrying out multichannel acoustic echo cancellation with a variable number of channels |
| 06/13/2006 | US7061328 Integrated direct drive inductor means enabled headphone amplifier |
| 06/13/2006 | US7061327 Single supply headphone driver/charge pump combination |
| 06/08/2006 | WO2006059654A1 Recording medium, reproduction device, program, reproduction method, and integrated circuit |
| 06/08/2006 | WO2006058602A1 Device and method for controlling a public address system, and a corresponding public address system |
| 06/08/2006 | WO2005096268A3 Method for processing audio data, in particular in an ambiophonic context |
| 06/08/2006 | US20060122832 Signal enhancement and speech recognition |