| Patents for H04R 3 - Circuits for transducers (18,190) |
|---|
| 02/02/2011 | CN101964190A Method and device for restoring signal under speaker cut-off frequency to original sound |
| 02/01/2011 | USRE42093 Active audio compressing in telecommunication |
| 02/01/2011 | US7881489 Ultrasonic transducer and ultrasonic speaker using the same |
| 02/01/2011 | US7881485 Apparatus and method of determining an impulse response and apparatus and method of presenting an audio piece |
| 02/01/2011 | US7881480 System for detecting and reducing noise via a microphone array |
| 02/01/2011 | CA2629801C Remote conference apparatus and sound emitting/collecting apparatus |
| 01/27/2011 | WO2011010513A1 Pop sound reduction circuit and audio circuit having such pop sound reduction circuit for use in audio amplifier |
| 01/27/2011 | WO2011010426A1 Sound pick-up device and method |
| 01/27/2011 | WO2011010292A1 Audio beamforming |
| 01/27/2011 | WO2010120394A3 Method for determining inverse filter from critically banded impulse response data |
| 01/27/2011 | US20110019836 Sound processing apparatus |
| 01/27/2011 | US20110019835 Speaker Localization |
| 01/27/2011 | DE102009031135A1 Hörvorrichtung und Verfahren zur Unterdrückung von Rückkopplungen Hearing apparatus and method for feedback suppression |
| 01/26/2011 | EP2277327A1 An audio system with feedback cancellation |
| 01/26/2011 | EP2277323A1 Speech enhancement using multiple microphones on multiple devices |
| 01/26/2011 | EP1905268B1 Apparatus and method for acoustic beamforming |
| 01/26/2011 | CN201726531U Audiphone combining AGC with dynamic amplification |
| 01/26/2011 | CN201726529U Vehicle-mounted touch control type loudspeaker |
| 01/26/2011 | CN201726522U Sound intensifier embedded into face mask |
| 01/26/2011 | CN201726521U Vehicle-mounted DVD navigation audio-visual device for raising audio frequency |
| 01/26/2011 | CN201726368U Through-type high-definition power amplifier device of sound system |
| 01/26/2011 | CN101960865A Apparatus for capturing and rendering a plurality of audio channels |
| 01/26/2011 | CN101959100A Protective circuit for voice frequency circuit system and voice frequency circuit system using same |
| 01/26/2011 | CN101959099A Directional microphone device |
| 01/26/2011 | CN101959094A Electret speaker impedance converter |
| 01/26/2011 | CN101958943A Electronic device applicable to different headset microphones |
| 01/26/2011 | CN101958701A outage delay circuit, method and sound system with outage delay |
| 01/26/2011 | CN101958690A Class-D audio power amplifier circuit |
| 01/26/2011 | CN101958139A High definition lossless audio playing (HDAP) system |
| 01/26/2011 | CN101443214B Audio playback system |
| 01/26/2011 | CN101014208B Audio earphone amplifier |
| 01/25/2011 | US7876914 Processing audio data |
| 01/20/2011 | WO2011007813A1 Howling canceller |
| 01/20/2011 | WO2011007812A1 Howling canceller |
| 01/20/2011 | WO2011007436A1 Acoustic reproduction device |
| 01/20/2011 | WO2010093917A3 Digital sound leveling device and method to reduce the risk of noise induced hearing loss |
| 01/20/2011 | US20110015893 Ultrasonic digitizer and host |
| 01/20/2011 | US20110013075 Method for processing sound source in terminal and terminal using the same |
| 01/19/2011 | CN201718031U Vibration sounding device |
| 01/19/2011 | CN201718030U Automatic karaoke human voice frequency spectrum regulating device |
| 01/19/2011 | CN201718029U Multi-channel audio signal distributor |
| 01/19/2011 | CN201718017U Microphone |
| 01/19/2011 | CN201717926U Active denoising system |
| 01/19/2011 | CN101953174A Digital speaker apparatus |
| 01/19/2011 | CN101951541A Sound control auto horn |
| 01/19/2011 | CN101951536A Playback converter for automobile sound equipment |
| 01/19/2011 | CN101951535A Vehicle-mounted speaker having LED warning screen |
| 01/19/2011 | CN101951235A Method and device for automatically controlling voice volume of parking lot management system |
| 01/18/2011 | US7873175 Multiplexed microphone signals with multiple signal processing paths |
| 01/13/2011 | WO2011004503A1 Noise removal device and noise removal method |
| 01/13/2011 | US20110008014 Recording medium, reproduction device, program, reproduction method, and integrated circuit |
| 01/13/2011 | US20110007911 Methods for locating either at least one sound generating object or a microphone using audio pulses |
| 01/13/2011 | DE112007003716T5 Klangverarbeitungsvorrichtung, Korrekturvorrichtung, Korrekturverfahren und Computergrogramm Sound processing apparatus correction apparatus correction method and Computergrogramm |
| 01/13/2011 | DE102009032300A1 Serielles Multi-Clock Interface System Serial Multi-Clock Interface System |
| 01/13/2011 | DE102009031536A1 Verfahren und Hörvorrichtung zum Einstellen einer Rückkopplungsunterdrückung Procedures and hearing to set a feedback suppression |
| 01/12/2011 | EP2273800A1 Hearing device with virtual sound source |
| 01/12/2011 | EP2273673A1 Audio signal processing device and audio signal processing method |
| 01/12/2011 | EP1690437B1 Microphone comprising integral multi-level quantizer and single-bit conversion means |
| 01/12/2011 | CN201708926U High-power portable broadcasting equipment |
| 01/12/2011 | CN201708925U Novel audio power amplifier |
| 01/12/2011 | CN201708924U Stereo with MP3 decoding function |
| 01/12/2011 | CN201708910U Intelligent induction sound box |
| 01/12/2011 | CN201708909U Super-directivity microphone pickup processing device |
| 01/12/2011 | CN201708908U Digital wireless microphone capable of carrying out smooth treatment on noise |
| 01/12/2011 | CN201707909U Electric horn |
| 01/12/2011 | CN201700455U Anion superoxide music imitation flower |
| 01/12/2011 | CN1939090B Handheld device loudspeaker system |
| 01/12/2011 | CN1939089B Sound volume control circuit, semiconductor integrated circuit, and sound source device |
| 01/12/2011 | CN101946526A Stereophonic widening |
| 01/12/2011 | CN101945316A Startup and shutdown automatic mute circuit of embedded type audio-video equipment |
| 01/12/2011 | CN101945315A Portable sound control system and sound control device thereof |
| 01/12/2011 | CN101453196B Amplifier circuit |
| 01/11/2011 | US7870393 Steganographic method and device |
| 01/11/2011 | US7869611 Test tone determination method and sound field correction apparatus |
| 01/11/2011 | US7869608 Electronic device accessory |
| 01/11/2011 | CA2524162C Periodic signal enhancement system |
| 01/06/2011 | WO2011002823A1 Calibrating a dual omnidirectional microphone array (doma) |
| 01/06/2011 | WO2011001775A1 Sensor and sensing method |
| 01/06/2011 | WO2011001195A1 Temperature compensated microphone |
| 01/06/2011 | WO2011000409A1 Positional disambiguation in spatial audio |
| 01/06/2011 | WO2010099237A3 Speaker distortion reduction system and method |
| 01/06/2011 | US20110002483 Condenser Microphone |
| 01/06/2011 | US20110002480 System, method, and device for intelligence gathering and position tracking |
| 01/06/2011 | US20110002477 Masking noise |
| 01/05/2011 | EP2271136A1 Hearing device with virtual sound source |
| 01/05/2011 | EP2270979A1 Preamplifier circuit for a microelectromechanical capacitive acoustic transducer |
| 01/05/2011 | EP2269383A2 An electrical system for a speaker and its control |
| 01/05/2011 | EP2269382A1 Composite microphone, microphone assembly and method of manufacturing those |
| 01/05/2011 | EP1631114B1 Array speaker system |
| 01/05/2011 | DE102010023615A1 Signalverarbeitungsvorrichtung und Signalverarbeitungsverfahren Signal processing apparatus and signal processing method |
| 01/05/2011 | CN201699983U Portable multifunctional sound device |
| 01/05/2011 | CN201699952U Intelligent automatic sound mixer with network interface |
| 01/05/2011 | CN201699951U Output indicator of sound box |
| 01/05/2011 | CN201699950U Synchronous sound frequency controller for vehicle electric horn |
| 01/05/2011 | CN201699936U Colorful flashing light earphone with USB interface |
| 01/05/2011 | CN201699935U USB interface earphone with touch control unit |
| 01/05/2011 | CN101940003A Howling suppression device, howling suppression method, program, and integrated circuit |
| 01/05/2011 | CN101938602A Image pick-up device |
| 01/05/2011 | CN101937754A Audio transformer and audio circuit |
| 01/04/2011 | US7865069 Recording medium, reproduction device, program, reproduction method, and integrated circuit |