| Patents for H03B 29 - Generation of noise currents and voltages (821) |
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| 09/01/2009 | US7583155 Random sequence generator |
| 08/26/2009 | EP1703878A4 Active noise control method and apparatus including feedforward and feedbackward controllers |
| 08/18/2009 | US7576620 Pseudo random clock generator |
| 08/11/2009 | US7574012 Hearing aid with noise suppression, and operating method therefor |
| 08/11/2009 | US7574006 Active noise controller |
| 07/09/2009 | US20090175462 Noise Reduction Systems and Methods for Voice Applications |
| 06/02/2009 | US7541885 Infinite radio frequency spectrum transceiver |
| 05/26/2009 | US7539459 Active noise cancellation system, arrangement, and method |
| 05/19/2009 | US7536018 Active noise cancellation system |
| 05/14/2009 | US20090121749 Generation of an Analog Gaussian Noise Signal Having Predetermined Characteristics |
| 04/30/2009 | WO2009032767A3 Multi-channel active control system and method for the reduction of tonal noise from an axial fan |
| 04/30/2009 | US20090110208 Apparatus, medium and method to encode and decode high frequency signal |
| 04/16/2009 | WO2007099542A3 Soundproof climate controlled rack |
| 04/16/2009 | WO2007099541A3 Quiet active fan for servers chassis |
| 04/14/2009 | US7519186 Noise reduction systems and methods for voice applications |
| 04/09/2009 | US20090092262 Managing acoustic noise produced by a device |
| 04/09/2009 | US20090092261 Reducing annoyance by managing the acoustic noise produced by a device |
| 03/31/2009 | US7511586 Noise generator |
| 03/24/2009 | US7508278 Asymmetry triangular frequency modulation profiles for spread spectrum clock generations |
| 03/19/2009 | US20090074199 System for providing a reduction of audiable noise perception for a human user |
| 03/17/2009 | US7504897 Switched-current oscillator for clock-frequency spreading |
| 03/12/2009 | WO2009032767A2 Multi-channel active control system and method for the reduction of tonal noise from an axial fan |
| 03/05/2009 | US20090060248 Earphone structure with a composite sound field |
| 03/05/2009 | US20090060238 Earphone structure with a composite sound field |
| 03/03/2009 | US7499555 Personal communication method and apparatus with acoustic stray field cancellation |
| 02/10/2009 | US7489785 Noise cancellation system and headphone therefor |
| 01/29/2009 | WO2006134586A3 Shielded communication transducer |
| 01/28/2009 | CN100456631C Wideband gaussian white noise source |
| 01/20/2009 | US7479837 Noise signal generation by mapping random words |
| 01/07/2009 | EP0944952B1 Variable microwave cold/warm noise source |
| 01/06/2009 | US7474754 Method for canceling unwanted loudspeaker signals |
| 01/01/2009 | US20090003616 Headphoning |
| 12/30/2008 | US7471797 Networked sound masking system with centralized sound masking generation |
| 12/18/2008 | US20080310328 Client-side echo cancellation for multi-party audio conferencing |
| 12/10/2008 | EP2000903A1 Random number generating device |
| 12/09/2008 | US7463748 [Earphone structure with a composite sound field ] |
| 11/26/2008 | EP1995720A2 Electronic sound screening system and method of accoustically improving the environment |
| 11/25/2008 | US7457422 Method and implementation for detecting and characterizing audible transients in noise |
| 11/11/2008 | US7450725 Digital filter modeling for active noise cancellation |
| 10/23/2008 | US20080258825 Digital Component Deterministic Pseudo Random Clock and Noise Source Device Based on a Random Frequency Modulated Oscillator |
| 10/16/2008 | US20080256153 Random number signal generator using pulse oscillator |
| 10/14/2008 | US7436968 Adaptive noise reduction method and device |
| 10/07/2008 | US7433484 Acoustic vibration sensor |
| 09/30/2008 | US7430255 Impulse noise suppression device |
| 09/25/2008 | US20080232607 Robust adaptive beamforming with enhanced noise suppression |
| 09/17/2008 | CN100420149C Communication device with active equalization and method therefor |
| 09/09/2008 | US7423494 Apparatus and method for a spread-spectrum oscillator for magnetic switched power converters |
| 09/04/2008 | WO2007130766A3 Narrow band noise reduction for speech enhancement |
| 09/04/2008 | WO2007112424A3 Audio limiting device for headphones |
| 08/28/2008 | US20080205663 Supplying Electrical Power |
| 08/26/2008 | US7418102 Broad-band echo sounder |
| 08/26/2008 | US7417511 Modulation circuit with integrated microelectro-mechanical system (MEMS) components |
| 08/12/2008 | US7412070 Headphoning |
| 08/06/2008 | EP1133899B1 Binaural signal processing techniques |
| 07/30/2008 | EP1744713A4 Tuned feedforward lms filter with feedback control |
| 07/17/2008 | US20080170707 Sound device |
| 06/26/2008 | US20080152161 System and method for determining application of adaptive filter |
| 06/19/2008 | US20080144857 Audio signal output circuit capable of decreasing pop noise |
| 06/19/2008 | US20080144849 Adaptive noise control system |
| 06/18/2008 | CN101202532A Complementary type metal oxidizing layer semiconductor noise generator |
| 06/12/2008 | US20080137878 Electronic method for reducing noise in the ear canal using feed forward techniques |
| 06/11/2008 | CN101196807A Method and system for random number generator with random sampling |
| 06/10/2008 | US7386135 Cardioid beam with a desired null based acoustic devices, systems and methods |
| 05/29/2008 | US20080126458 Apparatus and Methods for Generating Random Signals |
| 05/29/2008 | US20080123866 Hearing instrument with acoustic blocker, in-the-ear microphone and speaker |
| 05/29/2008 | DE202008003057U1 Vorrichtung zum Modifizieren des Rauschens einer Rauschquelle Means for modifying the noise of a noise source |
| 05/27/2008 | CA2476377C Earphone structure with a composite sound field |
| 05/22/2008 | WO2008059496A2 Magnetic means of reducing the parasitic output of periodic systems and associated method |
| 05/15/2008 | US20080112570 Filter circuit for noise cancellation, noise reduction signal production method and noise canceling system |
| 05/15/2008 | US20080112569 Noise reducing device, noise reducing method, noise reducing program, and noise reducing audio outputting device |
| 05/14/2008 | EP1014894A4 Active headset with bridge amplifier |
| 04/29/2008 | US7365577 Noise waveform generator with spectrum control |
| 04/24/2008 | US20080095383 Active Noise Reduction Adaptive Filter Leakage Adjusting |
| 04/22/2008 | US7362191 Methods and circuits for frequency modulation that reduce the spectral noise of switching regulators |
| 04/17/2008 | US20080089529 Noise reduction apparatus |
| 04/17/2008 | US20080089528 Sound altering apparatus |
| 04/17/2008 | DE102007038148A1 Mehrfach-FM-Zittern Multiple-FM tremor |
| 04/15/2008 | US7358821 Digital frequency jittering apparatus with random data generator and method thereof |
| 04/01/2008 | US7352870 Active sound muffler and active sound muffling method |
| 04/01/2008 | US7352869 Apparatus for and method of actively controlling vibratory noise, and vehicle with active vibratory noise control apparatus |
| 03/20/2008 | US20080072331 Protecting secret data entry from infrared and audio eavesdropping |
| 03/20/2008 | US20080069368 Method and apparatus for achieving active noise reduction |
| 03/13/2008 | US20080064336 Mobile communication terminal for removing noise in transmitting signal and method thereof |
| 03/06/2008 | US20080056505 Strip with acoustic damping properties |
| 03/05/2008 | EP1894330A2 Shielded communication transducer |
| 03/04/2008 | US7340065 Active noise control system |
| 03/04/2008 | US7340064 Active noise control system |
| 03/04/2008 | US7340063 Feedback cancellation with low frequency input |
| 02/28/2008 | WO2007136901A3 Tinnitus testing device and method |
| 02/27/2008 | CN101133440A Electronic sound screening system and method of accoustically impoving the environment |
| 02/26/2008 | US7336793 Loudspeaker system for virtual sound synthesis |
| 02/14/2008 | US20080037801 Dual microphone noise reduction for headset application |
| 02/05/2008 | US7327850 Supplying electrical power |
| 01/31/2008 | US20080025523 System and method for noise canceling in a mobile phone headset accessory |
| 01/31/2008 | US20080024235 Digital frequency jittering apparatus with random data generator and method thereof |
| 01/30/2008 | CN100365703C Active vibratory noise control apparatus |
| 01/24/2008 | WO2007103951A3 Headworn listening device and method |
| 01/08/2008 | US7317802 Active-noise-reduction headsets with front-cavity venting |
| 01/08/2008 | US7317801 Active acoustic noise reduction system |
| 12/19/2007 | EP1866907A2 Electronic sound screening system and method of accoustically improving the environment |