| Patents for H03B 29 - Generation of noise currents and voltages (821) |
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| 04/16/2013 | US8421544 Chaotic wide band frequency modulator for noise reduction |
| 04/10/2013 | EP2579455A1 Generation of band-limited noise with tunable crest factor |
| 04/09/2013 | US8416963 System for providing a personalized driving sound |
| 04/02/2013 | US8411874 Removing noise from audio |
| 04/02/2013 | US8411126 Methods and systems for close proximity spatial audio rendering |
| 04/02/2013 | US8410857 Apparatus and method for generating a random bit sequence |
| 03/26/2013 | US8406448 Earphone with rotatable earphone cap |
| 03/26/2013 | US8405464 Electronic device for controlling a frequency modulation index and a method of frequency-modulating |
| 03/20/2013 | CN102064766B 噪声发生器 Noise Generator |
| 03/19/2013 | US8401205 Noise canceling system and noise canceling method |
| 03/13/2013 | CN102969978A Time-domain distribution method for signal processing |
| 02/26/2013 | US8385558 Echo presence determination in voice conversations |
| 02/21/2013 | US20130044891 Active vibration noise control device |
| 02/14/2013 | US20130039507 Electronic devices for controlling noise |
| 02/12/2013 | US8374356 Noise canceling apparatus and noise canceling method |
| 01/23/2013 | CN102891653A White noise generating method used for simulation of demodulating decoder |
| 01/22/2013 | USRE43939 Headset noise reducing |
| 01/01/2013 | US8345885 Sound signal adjustment apparatus and method, and telephone |
| 12/18/2012 | US8335318 Active noise reduction adaptive filtering |
| 12/11/2012 | US8331577 Electronic device having active noise control with an external sensor |
| 11/29/2012 | US20120300954 Noiseless Motor Apparatus and Denoise Driver |
| 11/27/2012 | US8320577 Method and apparatus for multi-channel audio processing using single-channel components |
| 11/13/2012 | US8311229 Reduction of clicking sounds in audio data stream |
| 10/30/2012 | US8300842 Robust system for sound enhancement from a single engine sensor |
| 10/17/2012 | CN102739164A Noise filtering circuit and integrated circuit |
| 10/17/2012 | CN102088273B White noise random vibration generator |
| 10/16/2012 | US8290143 Delay estimator |
| 10/02/2012 | US8280066 Binaural feedforward-based ANR |
| 09/25/2012 | US8275142 Acoustic echo cancellation system |
| 09/19/2012 | CN102684606A Novel noise signal generator |
| 09/19/2012 | CN102684605A Noise waveform signal generating device |
| 09/18/2012 | US8270628 Method and system for actively influencing noise, and use thereof in a motor vehicle |
| 09/11/2012 | US8265292 Removing noise from audio |
| 09/04/2012 | US8259955 Fan noise canceling system |
| 08/28/2012 | US8254605 Binaural recording for smart pen computing systems |
| 08/28/2012 | US8254595 System and method of companding an input signal of an energy detecting receiver |
| 08/28/2012 | US8253502 Spread spectrum clock generator and semiconductor device |
| 08/21/2012 | US8249266 Filter system for hearing protection device for continuous noise exposure monitoring |
| 08/16/2012 | US20120207317 Ear-coupling detection and adjustment of adaptive response in noise-canceling in personal audio devices |
| 08/14/2012 | US8243942 Headphones for connection to an external active noise compensation device |
| 08/07/2012 | US8239860 Maintenance OS determining if system is within desired noise profile based on application type |
| 08/07/2012 | US8238568 Acoustic signal compensator and acoustic signal compensation method |
| 07/31/2012 | US8233632 Method and apparatus for multi-channel audio processing using single-channel components |
| 07/25/2012 | CN102611388A One-parameter robust chaotic signal source |
| 07/24/2012 | US8229139 MEMS microphone, production method and method for installing |
| 07/17/2012 | US8224011 Ear cup with microphone device |
| 07/17/2012 | US8223986 Electronic device and external equipment with digital noise cancellation and digital audio path |
| 07/11/2012 | CN102570978A Random noise source and manufacturing method thereof |
| 07/10/2012 | US8218782 Headphone device, signal processing device, and signal processing method |
| 07/10/2012 | US8218781 Audible fan noise cancellation |
| 07/04/2012 | CN202309616U 10MHz带宽噪声信号产生装置 10MHz bandwidth noise signal generating device |
| 07/03/2012 | US8213628 Listening device for clear perception of sound signals in a noisy environment |
| 06/19/2012 | US8204241 Sound outputting apparatus, sound outputting method, sound output processing program and sound outputting system |
| 06/12/2012 | US8199940 Audio reproduction system and speaker apparatus |
| 06/12/2012 | US8199924 System for active noise control with an infinite impulse response filter |
| 06/05/2012 | US8194873 Active noise reduction adaptive filter leakage adjusting |
| 06/05/2012 | US8194868 Loudspeaker system for virtual sound synthesis |
| 05/30/2012 | CN202261168U Generating apparatus for generating Gauss white noise with digit high precision and variable bandwidths |
| 05/29/2012 | US8189803 Noise reduction headset |
| 05/29/2012 | US8189801 Ear cup |
| 05/29/2012 | US8189800 Active silencer and method for controlling active silencer |
| 05/29/2012 | US8188798 Programmable electro-magnetic-interference (EMI) reduction with enhanced noise immunity and process tolerance |
| 05/23/2012 | CN102468807A Mechanical fault signal de-noising method |
| 05/23/2012 | CN102468806A 一种白噪声信号发生器 One kind of white noise signal generator |
| 05/22/2012 | US8184820 Indirect acoustic transfer control of noise |
| 05/01/2012 | US8170229 Audio privacy apparatus and method |
| 05/01/2012 | US8170228 Methods and devices for hearing damage notification and intervention II |
| 04/17/2012 | US8160266 Active vibratory noise control apparatus matching characteristics of audio devices |
| 04/10/2012 | US8155334 Feedforward-based ANR talk-through |
| 03/27/2012 | US8144889 Noise control system using smart materials |
| 03/27/2012 | US8144888 Filter apparatus for actively reducing noise |
| 03/27/2012 | US8143959 Jitter generation apparatus, device test system using the same, and jitter generation method |
| 03/22/2012 | WO2012036912A1 Spectrally uncolored optimal croostalk cancellation for audio through loudspeakers |
| 03/21/2012 | CN102386849A 10MHz bandwidth noise signal generating device and noise signal generating method |
| 03/13/2012 | US8135137 Sound image localization apparatus |
| 03/08/2012 | US20120056683 Frequency jitter circuit and method |
| 03/06/2012 | US8130995 Earpiece device with microphone |
| 02/21/2012 | US8121307 In-vehicle sound control system |
| 02/16/2012 | US20120039495 Audio processing apparatus, audio processing method, and program |
| 02/14/2012 | US8116481 Audio enhancement system |
| 02/14/2012 | US8116472 Noise control device |
| 02/14/2012 | US8115712 Method for reducing audio noise of display and driving device thereof |
| 02/07/2012 | US8111836 System and method using a phased array of acoustic generators for producing an adaptive null zone |
| 01/26/2012 | US20120019329 Frequency-jittering apparatuses, frequency-jittering methods and power management devices |
| 01/24/2012 | US8103017 Sound reproducing system and automobile using such sound reproducing system |
| 01/24/2012 | US8103013 Acoustic transducer device |
| 01/18/2012 | CN1738189B Methods and circuits for frequency modulation that reduce the spectral noise of switching regulators |
| 01/17/2012 | US8098837 Active noise control apparatus |
| 01/05/2012 | DE102010025639A1 Absolut sichere Signalübertragung mit Hilfe von thermischem Rauschen Absolutely reliable signal transmission by means of thermal noise |
| 01/03/2012 | US8089321 Fluctuation oscillator, fluctuation oscillating system, observation device and control system |
| 12/27/2011 | US8085948 Noise reduction in a system |
| 12/27/2011 | US8085944 Device and method for active noise cancellation in an exhaust gas channel of a combustion engine |
| 12/27/2011 | US8085943 Noise extractor system and method |
| 12/27/2011 | US8085942 Audio apparatus and method for use in proximity to a magnetic resonance imaging system |
| 12/27/2011 | US8085101 Spread spectrum clock generation device |
| 12/20/2011 | US8081769 Apparatus for rectifying resonance in the outer-ear canals and method of rectifying |
| 12/14/2011 | CN102281033A 减少开关电容采样噪声的技术 Switched capacitor sampling noise reduction technology |
| 12/06/2011 | US8073154 Supplying electrical power |
| 12/06/2011 | US8073149 Loudspeaker device |
| 11/22/2011 | US8064619 Microphone and integrated circuit capible of echo cancellation |