| Patents for H03B 29 - Generation of noise currents and voltages (821) |
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| 02/17/2015 | US8958571 MIC covering detection in personal audio devices |
| 02/10/2015 | US8953815 Battery receiving mechanism for noise cancellation headphone |
| 02/10/2015 | US8953812 Voice signals improvements in compressed wireless communications systems |
| 02/03/2015 | US8948408 Active noise control apparatus for intake system of vehicle |
| 01/21/2015 | CN104300913A 用于噪声成形的方法和噪声成形滤波器 Methods and noise shaping filter for noise shaping |
| 01/06/2015 | US8929565 Output phase modulation entrainment containment for digital filters |
| 12/10/2014 | CN102882472B 一种光子型频率下转换装置及方法 An apparatus and method for converting lower photon Frequency |
| 11/18/2014 | US8891782 Apparatus and method for sound focusing |
| 11/11/2014 | US8885848 Quality evaluation method and quality evaluation apparatus |
| 11/04/2014 | US8879747 Adaptive filtering system |
| 10/21/2014 | US8868432 Audio signal bandwidth extension in CELP-based speech coder |
| 10/21/2014 | US8867757 Microphone under keyboard to assist in noise cancellation |
| 09/30/2014 | US8849882 Generation of an analog Gaussian noise signal having predetermined characteristics |
| 09/30/2014 | US8848938 Electrostatic planar loudspeaker arrangement in a motor vehicle |
| 09/23/2014 | USRE45151 Headset noise reducing |
| 09/23/2014 | US8842851 Audio source localization system and method |
| 09/02/2014 | US8824694 Apparatus and method for managing call quality |
| 09/02/2014 | US8823459 Variable frequency circuit controller |
| 08/26/2014 | US8817998 Active vibratory noise control apparatus |
| 08/06/2014 | CN103973229A 乱数产生装置 Random number generating means |
| 08/06/2014 | CN102684606B 新型噪声信号发生器 The new noise signal generator |
| 08/05/2014 | US8798992 Audio noise modification for event broadcasting |
| 08/05/2014 | US8798283 Providing ambient naturalness in ANR headphones |
| 07/01/2014 | US8767973 Adaptive filter in a sensor array system |
| 06/24/2014 | US8761406 Audio signal processing device and audio signal processing method |
| 06/18/2014 | CN103872988A Feed-forward narrow-band active control system for use under frequency disorder |
| 06/10/2014 | US8750531 Active noise cancellation |
| 06/10/2014 | US8750530 Method and arrangement for processing audio data, and a corresponding corresponding computer-readable storage medium |
| 05/27/2014 | US8738367 Speech signal processing device |
| 05/27/2014 | US8737636 Systems, methods, apparatus, and computer-readable media for adaptive active noise cancellation |
| 05/21/2014 | CN103812447A 高斯白噪声发生方法及装置 Method and apparatus for Gaussian white noise generator |
| 05/07/2014 | CN103780205A 用于油井动液面深度检测的白噪声发生方法 White noise method for the depth of the well fluid level detection occurs |
| 05/06/2014 | US8718289 System for active noise control with parallel adaptive filter configuration |
| 05/06/2014 | US8717110 Frequency-jittering apparatuses, frequency-jittering methods and power management devices |
| 04/29/2014 | US8712070 Simultaneous enhancement of transmission loss and absorption coefficient using activated cavities |
| 04/08/2014 | US8693700 Adaptive feed-forward noise reduction |
| 04/08/2014 | US8693699 Method for adaptive control and equalization of electroacoustic channels |
| 04/03/2014 | WO2014047734A1 Method and device for link-over training |
| 04/02/2014 | CN203522649U Low-phase noise signal generator with switch filter |
| 03/26/2014 | CN103684264A Switchable chaotic signal source by memristor circuit and nonlinear circuit |
| 03/25/2014 | US8682003 Equipment with optical paths for noise cancellation signals |
| 03/25/2014 | US8682001 In-ear active noise reduction earphone |
| 03/25/2014 | US8682000 Method and device for narrow-band noise suppression in a vehicle passenger compartment |
| 03/18/2014 | US8675885 Adjusting noise reduction in headphones |
| 02/11/2014 | US8649525 System for hearing protectors |
| 02/04/2014 | US8644524 Noise reduction in electronic systems |
| 02/04/2014 | US8644522 Method and system for modeling external volume changes within an acoustic echo canceller |
| 02/04/2014 | US8644521 Adaptive noise control system with secondary path estimation |
| 01/28/2014 | US8638928 Key exchanging apparatus |
| 01/21/2014 | US8634576 Output phase modulation entrainment containment for digital filters |
| 01/15/2014 | CN203399059U White noise generator based on Orthogonal Frequency Division Multiplexing |
| 12/31/2013 | US8618887 Configurable spread spectrum oscillator |
| 12/25/2013 | CN103475382A Zero intermediate frequency Gaussian white noise adding method and device |
| 12/10/2013 | US8606573 Voice recognition improved accuracy in mobile environments |
| 12/03/2013 | US8600070 Signal processing apparatus and imaging apparatus |
| 12/03/2013 | US8600069 Multi-channel active noise control system with channel equalization |
| 11/27/2013 | CN203313200U High-safety recording cut-off device |
| 11/26/2013 | US8594354 Hearing aid and method of estimating dynamic gain limitation in a hearing aid |
| 11/26/2013 | US8593228 Spread spectrum clock generators and electronic devices including the same |
| 11/14/2013 | DE102004036355B4 Kopfhörerstruktur mit einem Mischklangfeld Headphone structure with a mixed sound field |
| 11/05/2013 | US8577062 Device and method for controlling operation of an earpiece based on voice activity in the presence of audio content |
| 11/05/2013 | US8577051 Sound signal compensation apparatus and method thereof |
| 10/31/2013 | US20130287217 Noise handling during audio and video recording |
| 10/22/2013 | US8565443 Adaptive noise control system |
| 10/22/2013 | US8565442 Noise reduction device |
| 10/08/2013 | US8553900 Noise reduction circuit with monitoring functionality |
| 10/08/2013 | US8553898 Method and system for reducing acoustical reverberations in an at least partially enclosed space |
| 10/02/2013 | CN103338007A A noise processing method and a circuit after a noise processing process |
| 10/02/2013 | CN102201788B Digital noise generation method |
| 09/26/2013 | DE102013004795A1 Method for generating noise for noise generator for generating random numbers, passwords in computer technology, cloud computing, involves generating true random number for processing or transporting electric binary data |
| 09/24/2013 | US8543061 Cellphone managed hearing eyeglasses |
| 09/24/2013 | US8542844 Sound modification system and method |
| 09/24/2013 | US8542843 Headset with integrated stereo array microphone |
| 09/24/2013 | US8542071 Chaotic oscillator-based random number generation |
| 09/17/2013 | US8538492 System and method for localized noise cancellation |
| 09/10/2013 | US8531247 Device and method for generating a random bit sequence |
| 09/03/2013 | US8526627 Noise reduction device |
| 08/27/2013 | US8521530 System and method for enhancing a monaural audio signal |
| 08/20/2013 | US8515095 Reducing annoyance by managing the acoustic noise produced by a device |
| 08/20/2013 | US8515089 Active noise cancellation decisions in a portable audio device |
| 08/14/2013 | CN203135793U High-voltage interference source generating device |
| 08/14/2013 | CN103248323A Circuit and method for improving noise immunity of a single-end level shifter in a floating gate driver |
| 08/13/2013 | US8509451 Noise suppressing device, noise suppressing controller, noise suppressing method and recording medium |
| 08/07/2013 | CN103236899A High-safety recording cut-off device |
| 08/07/2013 | CN103236819A Memory system chaotic signal generator |
| 08/06/2013 | US8503685 Auditory front end customization |
| 07/24/2013 | CN103222187A Spectrally uncolored optimal croostalk cancellation for audio through loudspeakers |
| 07/23/2013 | US8494175 Noise reduction device and noise reduction system |
| 07/18/2013 | US20130181758 Device and Method For Generating Noise Signals and Use Of a Device For Generating Noise Signals |
| 07/04/2013 | US20130169370 Frequency jitter circuit and method |
| 06/27/2013 | US20130162359 Frequency jitter circuit and method |
| 06/18/2013 | US8468018 Apparatus and method for canceling noise of voice signal in electronic apparatus |
| 06/18/2013 | US8467545 Noise reduction systems and methods for voice applications |
| 06/11/2013 | US8462959 Managing acoustic noise produced by a device |
| 05/30/2013 | US20130136269 Active vibration noise control apparatus |
| 05/28/2013 | US8452022 Digital filter circuit, digital filter program and noise canceling system |
| 05/28/2013 | US8451143 Vehicle presence notification apparatus |
| 05/07/2013 | US8437812 Headset with auxiliary input(s) for cell phone and/or other devices |
| 04/25/2013 | US20130099872 Chaotic oscillator-based random number generation |
| 04/24/2013 | CN103066922A Memory system chaotic signal generator |