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1. 发明申请

WO2006096231A3 FAST ECHO CANCELLER RECONVERGENCE AFTER TDM SLIPS AND ECHO LEVEL CHANGES 审中-公开
标题翻译：快速ECHO CANCELLER在TDM SLIPS和ECHO级别更改后重新获得
公开(公告)号：WO2006096231A3
公开(公告)日：2007-11-01
申请号：PCT/US2006000512
申请日：2006-01-06
申请人： MINDSPEED TECH INC , SU HUAN-YU , BENYASSINE ADIL , LAVROV NICK
发明人： SU HUAN-YU , BENYASSINE ADIL , LAVROV NICK
IPC分类号： H04M9/08
CPC分类号： H04B3/234
摘要： A method of adjusting an echo canceller comprises obtaining a first cross-correlation between a far-end signal and an error signal, wherein the error signal is generated by subtracting an output signal of an adaptive filter from a local-end signal; determining whether the first cross-correlation is above a pre-determined threshold; relocating the adaptive filter by a few samples if the determining determines that the first cross-correlation is above a pre-determined threshold; calculating a first improvement indicator parameter, wherein the first improvement indicator parameter is calculated after the relocating the adaptive filter by the few samples; determining whether the first improvement indicator parameter indicates a performance improvement by the adaptive filter after the relocating the adaptive filter by the few samples; calculating a gain based on the local-end signal and the error signal if the determining does not determine the performance improvement ; and multiplying the adaptive filter by the gain.
摘要翻译：一种调整回波消除器的方法包括获得远端信号和误差信号之间的第一互相关，其中通过从本地端信号中减去自适应滤波器的输出信号来产生误差信号; 确定所述第一互相关是否高于预定阈值; 如果确定确定第一互相关高于预定阈值，则将自适应滤波器重定位几个样本; 计算第一改进指标参数，其中在通过所述少数样本重定位所述自适应滤波器之后计算所述第一改进指标参数; 在由所述少数样本重新定位所述自适应滤波器之后，确定所述第一改进指示符参数是否指示所述自适应滤波器的性能改善; 如果确定不确定性能改进，则基于本地端信号和误差信号计算增益; 并将自适应滤波器乘以增益。

2. 发明申请

WO2005003712A3 MULTI-CHANNEL SPEECH PROCESSOR WITH INCREASED CHANNEL DENSITY 审中-公开
公开(公告)号：WO2005003712A3
公开(公告)日：2005-01-13
申请号：PCT/US2004/009721
申请日：2004-03-30
申请人： MINDSPEED TECHNOLOGIES, INC. , MURGIA, Carlo , KLEIN, Jeffrey, D. , SU, Huan-Yu
发明人： MURGIA, Carlo , KLEIN, Jeffrey, D. , SU, Huan-Yu
IPC分类号： G10L21/04
摘要： An exemplary multi-channel speech processor (208) comprises a controller (220) capable of interfacing with a plurality of channels, and at least one signal processing unit (SPU) (222) coupled to the controller (220), wherein the multi-channel speech processor has maximum execution time for processing all frames, one channel (224) at a time, by processing a single frame from each of the plurality of channels. The signal processing unit encodes each of the single frames from each of the plurality of channels, one channel at a time, to generate encoded frames until (234a-234n) the maximum execution time elapses or is about to elapse. The controller (220) also transmits a pre-determined frame for each of the plurality of channels not processed during the encoding step, due to the maximum execution time elapsing or being about to elapse, such that the predetermined frame causes a decoder which receives the predetermined frame to generate a frame erase frame.

3. 发明申请

WO2005003712A2 MULTI-CHANNEL SPEECH PROCESSOR WITH INCREASED CHANNEL DENSITY 审中-公开
标题翻译：多通道语音处理器，增加通道密度
公开(公告)号：WO2005003712A2
公开(公告)日：2005-01-13
申请号：PCT/US2004009721
申请日：2004-03-30
申请人： MINDSPEED TECH INC , MURGIA CARLO , KLEIN JEFFREY D , SU HUAN-YU
发明人： MURGIA CARLO , KLEIN JEFFREY D , SU HUAN-YU
IPC分类号： G01L21/04 , G10L19/00 , G10L19/14 , G10L21/04 , H04L12/56
CPC分类号： G10L19/008
摘要： An exemplary multi-channel speech processor (208) comprises a controller (220) capable of interfacing with a plurality of channels, and at least one signal processing unit (SPU) (222) coupled to the controller (220), wherein the multi-channel speech processor has maximum execution time for processing all frames, one channel (224) at a time, by processing a single frame from each of the plurality of channels. The signal processing unit encodes each of the single frames from each of the plurality of channels, one channel at a time, to generate encoded frames until (234a-234n) the maximum execution time elapses or is about to elapse. The controller (220) also transmits a pre-determined frame for each of the plurality of channels not processed during the encoding step, due to the maximum execution time elapsing or being about to elapse, such that the predetermined frame causes a decoder which receives the predetermined frame to generate a frame erase frame.
摘要翻译：示例性多通道语音处理器（208）包括能够与多个通道接口的控制器（220）以及耦合到控制器（220）的至少一个信号处理单元（SPU）（222），其中，通道语音处理器通过处理来自多个通道中的每个通道的单个帧具有用于一次处理一个通道（224）的所有帧的最大执行时间。信号处理单元对来自多个信道中的每个信道的每个单帧进行编码，一次一个信道，以产生编码帧，直到最大执行时间过去或将要过去的（234a-234n）。由于最大执行时间已过去或将要过去，控制器（220）还为在编码步骤期间未处理的多个信道中的每一个信道发送预定帧，使得预定帧导致解码器接收预定帧来产生帧擦除帧。

4. 发明申请

WO2003063136A1 CONVERSION SCHEME FOR USE BETWEEN DTX AND NON-DTX SPEECH CODING SYSTEMS 审中-公开
标题翻译： DTX和非DTX语音编码系统之间的转换方案
公开(公告)号：WO2003063136A1
公开(公告)日：2003-07-31
申请号：PCT/US2002/039969
申请日：2002-12-13
申请人： CONEXANT SYSTEMS, INC. , BENYASSINE, Adil , SHLOMOT, Eyal , SU, Huan-Yu
发明人： BENYASSINE, Adil , SHLOMOT, Eyal , SU, Huan-Yu
IPC分类号： G10L19/00
CPC分类号： H04W88/181 , G10L19/173
摘要： Method for converting a speech signal between DTX and non-DTX devices wherein a frame of a first speech signal comprising a plurality of frames encoded at a plurality of first rates, including a first non-speech rate, is received (524). The rate of the received frame is determined (526), and if the received frame is encoded at the first non-speech rate (528), then the received frame is re-encoded at either a second or third non-speech rate to generate a frame of a second speech signal (530). Moreover, a system for converting a speech signal comprises a receiver for receiving a frame of a first speech signal and a processor capable of determining the encoding rate of the received frame and re-encoding the received frame at either a second or third non-speech rate if the received frame was originally encoded at a first non-speech rate.
摘要翻译：用于在DTX和非DTX设备之间转换语音信号的方法，其中接收包括以包括第一非语音速率在内的多个第一速率编码的多个帧的第一语音信号的帧（524）。确定接收帧的速率（526），并且如果接收的帧以第一非语音速率（528）被编码，则接收的帧以第二或第三非语音速率被重新编码，以产生第二语音信号的帧（530）。此外，用于转换语音信号的系统包括用于接收第一语音信号的帧的接收机和能够确定接收到的帧的编码速率并且在第二或第三非语音中重新编码接收的帧的处理器如果接收的帧最初以第一非语音速率被编码，则速率。

5. 发明申请

WO2006096231A2 FAST ECHO CANCELLER RECONVERGENCE AFTER TDM SLIPS AND ECHO LEVEL CHANGES 审中-公开
标题翻译：快速ECHO CANCELLER在TDM SLIPS和ECHO级别更改后重新获得
公开(公告)号：WO2006096231A2
公开(公告)日：2006-09-14
申请号：PCT/US2006/000512
申请日：2006-01-06
申请人： MINDSPEED TECHNOLOGIES, INC. , SU, Huan-yu , BENYASSINE, Adil , LAVROV, Nick
发明人： SU, Huan-yu , BENYASSINE, Adil , LAVROV, Nick
IPC分类号： H04M9/08
CPC分类号： H04B3/234
摘要： A method of adjusting an echo canceller comprises obtaining a first cross-correlation between a far-end signal and an error signal, wherein the error signal is generated by subtracting an output signal of an adaptive filter from a local-end signal; determining whether the first cross-correlation is above a pre-determined threshold; relocating the adaptive filter by a few samples if the determining determines that the first cross-correlation is above a pre-determined threshold; calculating a first improvement indicator parameter, wherein the first improvement indicator parameter is calculated after the relocating the adaptive filter by the few samples; determining whether the first improvement indicator parameter indicates a performance improvement by the adaptive filter after the relocating the adaptive filter by the few samples; calculating a gain based on the local-end signal and the error signal if the determining does not determine the performance improvement ; and multiplying the adaptive filter by the gain.
摘要翻译：一种调整回波消除器的方法包括获得远端信号和误差信号之间的第一互相关，其中通过从本地端信号中减去自适应滤波器的输出信号来产生误差信号; 确定所述第一互相关是否高于预定阈值; 如果确定确定第一互相关高于预定阈值，则将自适应滤波器重定位几个样本; 计算第一改进指标参数，其中在通过所述少数样本重定位所述自适应滤波器之后计算所述第一改进指标参数; 在由所述少数样本重新定位所述自适应滤波器之后，确定所述第一改进指示符参数是否指示所述自适应滤波器的性能改善; 如果确定不确定性能改进，则基于本地端信号和误差信号计算增益; 并将自适应滤波器乘以增益。

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