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1. 发明申请

US20170148438A1 INPUT/OUTPUT MODE CONTROL FOR AUDIO PROCESSING 审中-公开
公开(公告)号：US20170148438A1
公开(公告)日：2017-05-25
申请号：US15356401
申请日：2016-11-18
申请人： CONEXANT SYSTEMS, INC.
发明人： Randall Deetz , Trausti Thormundsson , Stuart Whitfield Hutson , Thorarinn Sveinsson , Yair Kerner
IPC分类号： G10L15/22 , H04L29/06 , H04M7/00 , G10L15/18 , G06F3/16
CPC分类号： G10L15/22 , G06F3/165 , G10L15/1815 , G10L2015/223 , G10L2015/228 , H04L65/403 , H04M3/568 , H04M7/006
摘要： Systems and methods provide input and output mode control for audio processing on a user device. Audio processing may be configured by monitoring audio activity on a device having at least one microphone and a digital audio processing unit, collecting information from the monitoring of the activity, including an identification of at least one application utilizing audio processing, and determining a context for the audio processing, the context including at least one context resource having associated metadata. An audio configuration is determined based on the application and determined context, and an action is performed to control the audio processing mode. User controls providing addition mode control may be displayed automatically based on a current application and determined context.

2. 发明申请

US20160232918A1 REDUCED-DELAY SUBBAND SIGNAL PROCESSING SYSTEM AND METHOD 有权
公开(公告)号：US20160232918A1
公开(公告)日：2016-08-11
申请号：US15132150
申请日：2016-04-18
申请人： CONEXANT SYSTEMS, INC.
发明人： Yair Kerner
IPC分类号： G10L21/0232 , H04R3/04 , H03H17/02 , G10L21/038
CPC分类号： G10L21/0232 , G10L21/038 , G10L2021/02082 , H03H17/0213 , H04B3/20 , H04M9/082 , H04R3/04 , H04R2430/03
摘要： A method for signal processing, receiving a time domain signal having a sample-rate Fs and generating N time domain signal bands, each having a bandwidth equal to Fs/N. Receiving the N signal bands and transforming a first time domain signal band to a frequency domain at a first resolution and a second time domain signal band to the frequency domain at a second resolution, where the first resolution may be different from the second resolution. Determining one or more first filter coefficients using the frequency domain components from the first signal band and one or more second filter coefficients using the frequency domain components from the second signal band. Transforming the first and second filter coefficients from the frequency domain to a time domain. Applying the first and second time domain filter coefficients to the first and second time domain signals, respectively.

3. 发明授权

US09426279B2 Systems and methods for echo cancellation and echo suppression 有权
标题翻译：用于回波消除和回波抑制的系统和方法
公开(公告)号：US09426279B2
公开(公告)日：2016-08-23
申请号：US14160467
申请日：2014-01-21
申请人： CONEXANT SYSTEMS, INC.
发明人： Youhong Lu , Trausti Thormundsson , Yair Kerner , Ragnar H. Jonsson
IPC分类号： H04M9/08 , H04M3/00
CPC分类号： H04M3/002 , H04M9/082
摘要： Traditionally, echo cancellation has employed linear adaptive filters to cancel echoes in a two way communication system. The rate of adaptation is often dynamic and varies over time. Disclosed are novel rates of adaptation that perform well in the presence of background noise, during double talk and with echo path changes. Additionally, the echo or residual echo can further be suppressed with non-linear processing performed using joint frequency-time domain processing.
摘要翻译：传统上，回波消除采用线性自适应滤波器来消除双向通信系统中的回波。适应率通常是动态的，随时间而变化。公开了在双重通话期间和具有回波路径改变的情况下，在背景噪声的存在下表现良好的适应性适应性。此外，通过使用联合频域处理执行的非线性处理，可进一步抑制回波或残留回波。

4. 发明授权

US09837098B2 Reduced-delay subband signal processing system and method 有权
公开(公告)号：US09837098B2
公开(公告)日：2017-12-05
申请号：US15132150
申请日：2016-04-18
申请人： CONEXANT SYSTEMS, INC.
发明人： Yair Kerner
IPC分类号： H04B3/20 , G10L21/0232 , H04R3/04 , G10L21/038 , H03H17/02 , H04M9/08 , G10L21/0208
CPC分类号： G10L21/0232 , G10L21/038 , G10L2021/02082 , H03H17/0213 , H04B3/20 , H04M9/082 , H04R3/04 , H04R2430/03
摘要： A method for signal processing, receiving a time domain signal having a sample-rate Fs and generating N time domain signal bands, each having a bandwidth equal to Fs/N. Receiving the N signal bands and transforming a first time domain signal band to a frequency domain at a first resolution and a second time domain signal band to the frequency domain at a second resolution, where the first resolution may be different from the second resolution. Determining one or more first filter coefficients using the frequency domain components from the first signal band and one or more second filter coefficients using the frequency domain components from the second signal band. Transforming the first and second filter coefficients from the frequency domain to a time domain. Applying the first and second time domain filter coefficients to the first and second time domain signals, respectively.

5. 发明申请

US20140133649A1 SYSTEMS AND METHODS FOR ECHO CANCELLATION AND ECHO SUPPRESSION 有权
标题翻译：用于ECHO消除和ECHO抑制的系统和方法
公开(公告)号：US20140133649A1
公开(公告)日：2014-05-15
申请号：US14160467
申请日：2014-01-21
申请人： CONEXANT SYSTEMS, INC.
发明人： Youhong Lu , Trausti Thormundsson , Yair Kerner , Ragnar H. Jonsson
IPC分类号： H04M3/00
CPC分类号： H04M3/002 , H04M9/082
摘要： Traditionally, echo cancellation has employed linear adaptive filters to cancel echoes in a two way communication system. The rate of adaptation is often dynamic and varies over time. Disclosed are novel rates of adaptation that perform well in the presence of background noise, during double talk and with echo path changes. Additionally, the echo or residual echo can further be suppressed with non-linear processing performed using joint frequency-time domain processing.
摘要翻译：传统上，回波消除采用线性自适应滤波器来消除双向通信系统中的回波。适应率通常是动态的，随时间而变化。公开了在双重通话期间和具有回波路径改变的情况下，在背景噪声的存在下表现良好的适应性适应性。此外，通过使用联合频域处理执行的非线性处理，可进一步抑制回波或残留回波。

6. 发明申请

US20130287226A1 REDUCED-DELAY SUBBAND SIGNAL PROCESSING SYSTEM AND METHOD 有权
标题翻译：减少延迟信号处理系统和方法
公开(公告)号：US20130287226A1
公开(公告)日：2013-10-31
申请号：US13840302
申请日：2013-03-15
申请人： Conexant Systems, Inc.
发明人： Yair Kerner
IPC分类号： H04R3/04
CPC分类号： G10L21/0232 , G10L21/038 , G10L2021/02082 , H03H17/0213 , H04B3/20 , H04M9/082 , H04R3/04 , H04R2430/03
摘要： A method for signal processing, receiving a time domain signal having a sample-rate Fs and generating N time domain signal bands, each having a bandwidth equal to Fs/N. Receiving the N signal bands and transforming a first time domain signal band to a frequency domain at a first resolution and a second time domain signal band to the frequency domain at a second resolution, where the first resolution may be different from the second resolution. Determining one or more first filter coefficients using the frequency domain components from the first signal band and one or more second filter coefficients using the frequency domain components from the second signal band. Transforming the first and second filter coefficients from the frequency domain to a time domain. Applying the first and second time domain filter coefficients to the first and second time domain signals, respectively.
摘要翻译：一种用于信号处理的方法，接收具有采样率Fs并产生N个时域信号频带的时域信号，每个具有等于Fs / N的带宽。接收N个信号频带并以第一分辨率和第二时域信号频带将第一时域信号频带变换到频域，以第二分辨率以第二分辨率转换到频域，其中第一分辨率可以不同于第二分辨率。使用来自第一信号频带的频域分量和使用来自第二信号频带的频域分量的一个或多个第二滤波器系数来确定一个或多个第一滤波器系数。将第一和第二滤波器系数从频域转换到时域。分别将第一和第二时域滤波器系数应用于第一和第二时域信号。

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