Patents for H03B 29 - Generation of noise currents and voltages (821) |
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12/19/2007 | CN101090687A Hearing protector |
12/11/2007 | US7308106 System and method for optimized active controller design in an ANR system |
12/04/2007 | US7305094 System and method for actively damping boom noise in a vibro-acoustic enclosure |
11/22/2007 | US20070269054 Processing device, squealing sound generation method in information processing device, and computer program product |
11/21/2007 | EP1858157A1 Spread spectrum clock generation system |
11/14/2007 | EP1855191A2 Random number generating device |
11/01/2007 | US20070255777 Method for Generating Random Number and Random Number Generator |
11/01/2007 | US20070253570 Microphone System |
11/01/2007 | US20070253568 Active noise reduction microphone placing |
11/01/2007 | US20070253567 High frequency compensating |
10/30/2007 | US7289635 Structural noise source predictor |
10/24/2007 | CN100345183C Apparatus for and method of actively controlling vibratory noise, and vehicle with active vibratory noise control apparatus |
10/24/2007 | CN100345182C Active vibratory noise control apparatus |
10/23/2007 | US7286021 Low power random bit generator and random number generator |
10/18/2007 | US20070242834 Noise cancellation for wireless audio distribution system |
10/11/2007 | US20070236299 Measuring microprocessor susceptibility to internal noise generation |
09/27/2007 | US20070223715 Quiet active fan for servers chassis |
09/19/2007 | EP1256259A4 Acoustically asymmetric bandpass loudspeaker with multiple acoustic filters |
09/18/2007 | US7272234 Multi-channel active control system and method for the reduction of tonal noise from an axial fan |
09/07/2007 | WO2007099541A2 Quiet active fan for servers chassis |
09/05/2007 | EP1827331A1 Hearing protector |
08/23/2007 | US20070195968 Noise suppression method and system with single microphone |
08/22/2007 | CN101023584A Consumer device comprising a signal converter |
08/16/2007 | US20070189547 Method and apparatus for echo cancellation |
08/01/2007 | EP1814218A1 Frequency synthesizer |
07/31/2007 | US7251301 Methods and systems for providing a noise signal |
07/25/2007 | EP1605880A4 Noise-shapers and filters with noise shaping quantizers and systems and methods using the same |
07/24/2007 | US7248705 Noise reducing headphones with sound conditioning |
07/19/2007 | US20070165838 Selective glitch detection, clock drift compensation, and anti-clipping in audio echo cancellation |
07/19/2007 | US20070165837 Synchronizing Input Streams for Acoustic Echo Cancellation |
07/12/2007 | WO2007079441A2 Leading edge transducer |
07/11/2007 | CN1996759A 频率合成器 Frequency synthesizer |
07/05/2007 | US20070154028 Audio transducer |
07/05/2007 | US20070154026 Mute circuit for eliminating noise during power off and electronic device using the same |
06/28/2007 | US20070147627 Multiplexed microphone signals with multiple signal processing paths |
06/19/2007 | US7233212 Oscillator array with row and column control |
06/12/2007 | US7231052 Vibration-isolating and sound isolating system for vehicle |
05/31/2007 | WO2007062287A2 Method and apparatus for double-talk detection in a hands-free communication system |
05/31/2007 | US20070121925 Method and apparatus for double-talk detection in a hands-free communication system |
05/29/2007 | US7224807 System for computationally efficient active control of tonal sound or vibration |
05/17/2007 | US20070110255 Soundproof climate controlled rack |
05/01/2007 | US7212874 Noise-shapers and filters with noise shaping quantizers and systems and methods using the same |
04/25/2007 | EP1776766A2 Consumer device comprising a signal converter |
04/19/2007 | US20070086598 Active noise control method and apparatus including feedforward and feedback controllers |
04/05/2007 | US20070076896 Active noise-reduction control apparatus and method |
03/29/2007 | US20070071250 Method and device for attenuating the noise generated at the outlet of an exhaust line |
03/27/2007 | US7197146 Microphone array signal enhancement |
03/22/2007 | US20070064958 Diffuser and speaker using the same |
03/20/2007 | US7194095 Anti-noise pick-up |
03/20/2007 | US7193482 Integrated circuit with tamper detection circuit |
03/20/2007 | US7193481 Apparatus for providing a jittered clock signal and apparatus for providing a random bit |
03/13/2007 | US7190796 Active feedback-controlled bass coloration abatement |
02/22/2007 | US20070041588 Motor operation noise elimination circuit of portable multimedia player |
02/22/2007 | US20070041576 Echo canceller and microphone apparatus |
02/15/2007 | US20070036367 Apparatus and method of reducing noise of earphones, noise reducing earphones, and a portable audio reproducing apparatus having the same |
02/14/2007 | EP1751847A2 System and method for optimized active controller design in an anr system |
02/14/2007 | CN1914949A Method for adjusting adaptation control of adaptive interference canceller |
02/13/2007 | US7177433 Method of improving the audibility of sound from a loudspeaker located close to an ear |
02/06/2007 | CA2285643C Variable microwave cold/warm noise source |
02/01/2007 | US20070024384 Noise signal generation by mapping random words |
01/31/2007 | EP1748357A1 Noise signal generation by mapping random words |
01/24/2007 | EP1744713A2 Tuned feedforward lms filter with feedback control |
01/24/2007 | CN2862499Y Intelligent type signal generator |
01/23/2007 | US7167059 Circuit for generating spread spectrum clock |
01/10/2007 | EP1143615B1 Noise sequence generator for generating a plurality of noise sequences |
01/04/2007 | US20070003072 Ambient noise canceling physiological acoustic monitoring system & method |
01/04/2007 | US20070003071 Active noise control system and method |
01/04/2007 | US20070001772 Method and device for stabilizing a transfer function of a digital phase locked loop |
01/02/2007 | US7158644 Active noise control system |
12/27/2006 | CN1886104A Active noise control method and apparatus including feedforward and feedback controllers |
12/26/2006 | US7155018 System and method facilitating acoustic echo cancellation convergence detection |
12/14/2006 | US20060279366 Generator of a pseudo-random digital flow |
11/30/2006 | WO2006127332A2 Fan noise control apparatus |
11/30/2006 | US20060269078 Vehicular active noise/vibration/sound control system, and vehicle incorporating such system |
11/30/2006 | US20060269077 Fan noise control apparatus |
11/29/2006 | EP1727276A1 Pseudo-random digital stream generator |
11/21/2006 | US7139401 Hard disk drive with self-contained active acoustic noise reduction |
11/21/2006 | US7139400 Microphone calibration for active noise control system |
11/09/2006 | US20060251267 Active sound reduction apparatus and active noise insulation wall having same |
11/09/2006 | US20060251266 Adaptive personal active noise system |
11/07/2006 | US7133524 Key installation system, LSI for implementing the same, and key installation method |
10/10/2006 | US7120259 Adaptive estimation and compensation of clock drift in acoustic echo cancellers |
10/05/2006 | US20060222184 Multi-channel adaptive speech signal processing system with noise reduction |
09/28/2006 | US20060218212 Random sequence generator |
09/27/2006 | EP1703878A1 Active noise control method and apparatus including feedforward and feedbackward controllers |
09/26/2006 | US7113605 System and process for time delay estimation in the presence of correlated noise and reverberation |
09/21/2006 | US20060210091 Howling canceler apparatus and sound amplification system |
09/19/2006 | US7110551 Adaptive personal active noise reduction system |
09/08/2006 | WO2006056856A3 Electronic sound screening system and method of accoustically improving the environment |
09/08/2006 | WO2005112850A3 System and method for optimized active controller design in an anr system |
09/07/2006 | US20060197618 Pulse generator and the transmitter with a pulse generator |
09/06/2006 | EP1698208A1 Method for adjusting adaptation control of adaptive interference canceller |
09/05/2006 | US7103188 Variable gain active noise cancelling system with improved residual noise sensing |
08/31/2006 | US20060192624 Apparatus and method for generation of noise signal |
08/29/2006 | US7099906 Random bit sequence generator |
08/29/2006 | US7098746 Voltage controlled oscillator |
08/24/2006 | US20060188107 Active noise control system |
08/24/2006 | US20060186957 Noise generator |
08/15/2006 | US7092529 Adaptive control system for noise cancellation |
08/10/2006 | WO2005115285A3 Integral active noise cancellation section |