| Patents for H04R 3 - Circuits for transducers (18,190) |
|---|
| 05/03/2007 | US20070098190 Method and apparatus to control output power of a digital power amplifier optimized to a headphone and a portable audio player having the same |
| 05/03/2007 | US20070098189 Speaker drive system for headsets and method |
| 05/03/2007 | US20070098182 Audio frequency range adaptation |
| 05/03/2007 | DE102005051699A1 Sound level variation correcting method for use in vehicle, involves detecting characteristics` changes of frequency section according to given criteria, so as to determine control variable for variation of signal amplification |
| 05/02/2007 | EP1354401B1 Circuits and methods for controlling transients during audio device power-up and power-down, and systems using the same |
| 05/02/2007 | EP1129601B1 Method for in-situ measuring and correcting or adjusting the output signal of a hearing aid with a model processor and hearing aid employing such a method |
| 05/02/2007 | CN1957638A Listening device with two or more microphones |
| 05/02/2007 | CN1957637A Volume adjusting apparatus |
| 05/02/2007 | CN1956602A Circuit for removing microphone self-resonance sounding |
| 05/02/2007 | CN1956599A 扬声器 Speaker |
| 05/02/2007 | CN1956392A Method, device and system for implementing multi-service type structure |
| 05/02/2007 | CN1956321A Method for preventing output device demaged |
| 05/02/2007 | CN1956058A Minimization of transient noises in a voice signal |
| 05/01/2007 | US7212956 Method and system of representing an acoustic field |
| 05/01/2007 | US7212642 Microphone system with directional response |
| 05/01/2007 | US7212640 Variable attack and release system and method |
| 04/26/2007 | WO2007046435A1 Noise control device |
| 04/26/2007 | US20070094362 Method for automatically configuring terminal equipmet |
| 04/26/2007 | US20070094319 Digital filter and listening device |
| 04/26/2007 | US20070092091 Speaker driving apparatus |
| 04/26/2007 | US20070092090 Apparatus for detecting a module |
| 04/25/2007 | EP1777988A2 Improvements to a public address system having zone isolator circuits |
| 04/25/2007 | EP1777987A2 Adaptive coupling equalization in beamforming-based communication systems |
| 04/25/2007 | EP1777829A2 Interactive sound reproducing |
| 04/25/2007 | EP1683391A4 System and method for controlling audio output |
| 04/25/2007 | EP1570573B1 A fully parametric equalizer |
| 04/25/2007 | EP0995188B1 Methods and apparatus for measuring signal level and delay at multiple sensors |
| 04/25/2007 | CN2894177Y 壁式背景音乐控制器 Wall Background music controller |
| 04/25/2007 | CN1954387A Recording medium, reproduction device, program, reproduction method, and integrated circuit |
| 04/25/2007 | CN1953618A Speaker driving apparatus |
| 04/25/2007 | CN1953060A Echo elimination device for microphone and method thereof |
| 04/25/2007 | CN1312841C Adapting device capable of converting picture element clock pulse into character clock pulse |
| 04/24/2007 | US7209566 Method and apparatus for determining a nonlinear response function for a loudspeaker |
| 04/19/2007 | US20070086606 Transducer array with nonuniform asymmetric spacing and method for configuring array |
| 04/19/2007 | US20070086605 Electro-acoustic transducer comprising an rfid circuit |
| 04/19/2007 | US20070086603 Method and apparatus for sound transduction with minimal interference from background noise and minimal local acoustic radiation |
| 04/19/2007 | US20070086602 System and method for matching microphones |
| 04/19/2007 | US20070086597 Sound measuring apparatus and method, and audio signal processing apparatus |
| 04/19/2007 | DE10046238B4 Verfahren zur Verarbeitung von Audiosignalen A method for processing audio signals |
| 04/18/2007 | EP1775989A1 Speaker array and microphone array |
| 04/18/2007 | EP1775719A2 Minimization of transient noises in a voice signal |
| 04/18/2007 | EP1774828A1 Sound enhancement |
| 04/18/2007 | EP1774827A1 First person acoustic environment system and method |
| 04/18/2007 | EP1774826A1 In-ear monitoring system and method with bidirectional channel |
| 04/18/2007 | EP1774825A1 In-ear monitoring system and method |
| 04/18/2007 | EP1374635A4 Bone conduction hearing aid |
| 04/18/2007 | CN2891565Y Mixer |
| 04/18/2007 | CN1951148A System for limiting loudspeaker displacement |
| 04/18/2007 | CN1951147A Howling detector and its method |
| 04/17/2007 | US7206648 Multi-channel audio reproducing apparatus |
| 04/17/2007 | US7206421 Hearing system beamformer |
| 04/17/2007 | US7206420 Softclip method and apparatus |
| 04/17/2007 | US7206418 Noise suppression for a wireless communication device |
| 04/17/2007 | US7206255 Signal processing apparatus and signal processing method |
| 04/12/2007 | WO2007040211A1 Electrostatic capacity type ultrasonic oscillation device and its control method |
| 04/12/2007 | WO2007040053A1 Video sound output device and external loudspeaker controller |
| 04/12/2007 | WO2006137010A3 Thermo-acoustic transducers |
| 04/12/2007 | WO2006137008A3 Thermo-acoustic transducers |
| 04/12/2007 | US20070081677 Speaker array and microphone array |
| 04/12/2007 | US20070081675 Method and apparatus for outputting an audio signal according to a DMB channel |
| 04/12/2007 | DE19936346B4 Ein audiosignalverarbeitendes Gerät An audio signal processing apparatus |
| 04/12/2007 | DE102005047047A1 Mikrofonkalibrierung bei einem RGSC-Beamformer Microphone calibration with a RGSC beamformer |
| 04/11/2007 | EP1773100A1 Adaptation of a directional microphone to long lasting effects |
| 04/11/2007 | EP1773098A1 A system and method for matching microphones |
| 04/11/2007 | EP1771943A2 Single supply direct drive amplifier |
| 04/11/2007 | CN1946247A Method and apparatus of amplifying stereo effect |
| 04/11/2007 | CN1946246A Arbitral method for audio output device |
| 04/11/2007 | CN1945966A Dynamic allocation of power supplied by a power supply and frequency agile spectral filtering of signals |
| 04/10/2007 | US7203325 Audio processing device |
| 04/10/2007 | US7203324 Audio feedback processing system |
| 04/10/2007 | US7203323 System and process for calibrating a microphone array |
| 04/05/2007 | WO2007037700A1 Directional audio capturing |
| 04/05/2007 | WO2007037208A1 Video sound output device and external loudspeaker controller |
| 04/05/2007 | WO2006114015A3 Method for manufacturing an audio signal |
| 04/05/2007 | US20070076905 Audio output apparatus |
| 04/05/2007 | US20070076904 Microphone preamplifier |
| 04/05/2007 | US20070076901 Adapting a directional microphone signal to long-lasting influences |
| 04/05/2007 | US20070076900 Microphone calibration with an RGSC beamformer |
| 04/05/2007 | US20070076899 Audio collecting device by audio input matrix |
| 04/05/2007 | US20070076898 Adaptive beamformer with robustness against uncorrelated noise |
| 04/05/2007 | US20070076891 Apparatus and method of canceling vocal component in an audio signal |
| 04/04/2007 | EP1771039A2 Audio control system |
| 04/04/2007 | EP1771034A2 Microphone calibration in a RGSC-beamformer |
| 04/04/2007 | EP1770705A1 Recording medium, reproduction device, program, reproduction method, and integrated circuit |
| 04/04/2007 | EP1769579A2 Speaker with frequency directed dual drivers |
| 04/04/2007 | CN2886961Y Frequency splitter |
| 04/04/2007 | CN2886745Y Digital mixer and mixer configuration editing device |
| 04/04/2007 | CN1943273A Sound image localization controller |
| 04/04/2007 | CN1942017A Apparatus and method to cancel crosstalk and stereo sound generation system using the same |
| 04/04/2007 | CN1942016A Chargeable circuit, integrated circuit and controlling method |
| 04/04/2007 | CN1942015A 扬声器 Speaker |
| 04/04/2007 | CN1941620A Method for removing loundspeaker noise |
| 04/04/2007 | CN1308915C System for improving sound legibility |
| 04/03/2007 | US7199835 Method for switching signal input based on device capability |
| 04/03/2007 | CA2352017C Method and apparatus for locating a talker |
| 03/29/2007 | WO2007035020A1 Wireless stereo headset and wireless stereo audion transmitter for providing wired connection |
| 03/29/2007 | US20070071255 Adaptive Sound Reproduction |
| 03/29/2007 | US20070071252 Microphone, hearing aid with a microphone and inlet structure for a microphone |
| 03/28/2007 | EP1438833B1 Device and method for multichannel acoustic echo cancellation with a variable number of channels |
| 03/28/2007 | CN2884764Y Loudspeaker divider |