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1. 发明授权

US08363535B2 Frequency domain echo and next cancellation 有权
标题翻译：频域回波和下一次取消
公开(公告)号：US08363535B2
公开(公告)日：2013-01-29
申请号：US12074256
申请日：2008-02-29
申请人： Gavin D. Parnaby , George A. Zimmerman , Chris Pagnanelli , William W. Jones
发明人： Gavin D. Parnaby , George A. Zimmerman , Chris Pagnanelli , William W. Jones
IPC分类号： H04J1/12 , H04J3/10
CPC分类号： H04J1/12 , H04B3/23 , H04B3/32
摘要： A cancellation system is disclosed for processing incoming and outgoing signals in a transform domain to create a cancellation signal for reducing or removing unwanted interference. Data is ordered based on Good-Thomas indexing into a two dimensional array in a buffer. The two dimensional array may have lr rows and lw columns. From the buffer, the columns of data undergo a Winograd small transform. The rows of data undergo a Cooley-Tukey operation to complete the transform operation into the frequency domain. Multipliers scale the transformed data to generate a cancellation signal in the frequency domain. Inverse (Cooley-Tukey) and Winograd transforms perform inverse processing on the cancellation signal to return the cancellation signal or data to the time domain. Re-ordering the data and combination of the cancellation signal or data with incoming or outgoing signals achieve interference cancellation.
摘要翻译：公开了一种用于在变换域中处理输入和输出信号以产生用于减少或去除不期望的干扰的消除信号的消除系统。数据是基于Good-Thomas索引到缓冲区中的二维数组中排序的。二维阵列可以具有lr行和lw列。从缓冲区，数据列经历了Winograd小变换。数据行经过Cooley-Tukey操作以完成到频域的变换操作。乘法器对经变换的数据进行缩放以在频域中产生消除信号。反向（Cooley-Tukey）和Winograd变换对消除信号执行反向处理，以将消除信号或数据返回到时域。重新排序数据，取消信号或数据与输入或输出信号的组合可实现干扰消除。

2. 发明申请

US20080239939A1 Frequency domain echo and next cancellation 有权
标题翻译：频域回波和下一次取消
公开(公告)号：US20080239939A1
公开(公告)日：2008-10-02
申请号：US12074256
申请日：2008-02-29
申请人： Gavin D. Parnaby , George A. Zimmerman , Chris Pagnanelli , William W. Jones
发明人： Gavin D. Parnaby , George A. Zimmerman , Chris Pagnanelli , William W. Jones
IPC分类号： H04J3/10
CPC分类号： H04J1/12 , H04B3/23 , H04B3/32
摘要： A cancellation system is disclosed for processing incoming and outgoing signals in a transform domain to create a cancellation signal for reducing or removing unwanted interference. Data is ordered based on Good-Thomas indexing into a two dimensional array in a buffer. The two dimensional array may have lr rows and lw columns. From the buffer, the columns of data undergo a Winograd small transform. The rows of data undergo a Cooley-Tukey operation to complete the transform operation into the frequency domain. Multipliers scale the transformed data to generate a cancellation signal in the frequency domain. Inverse (Cooley-Tukey) and Winograd transforms perform inverse processing on the cancellation signal to return the cancellation signal or data to the time domain. Re-ordering the data and combination of the cancellation signal or data with incoming or outgoing signals achieve interference cancellation.
摘要翻译：公开了一种用于在变换域中处理输入和输出信号以产生用于减少或去除不期望的干扰的消除信号的消除系统。数据是基于Good-Thomas索引到缓冲区中的二维数组中排序的。二维阵列可以具有1个行和1个/或2个列。从缓冲区，数据列经历了Winograd小变换。数据行经过Cooley-Tukey操作以完成到频域的变换操作。乘法器对经变换的数据进行缩放以在频域中产生消除信号。反向（Cooley-Tukey）和Winograd变换对消除信号执行反向处理，以将消除信号或数据返回到时域。重新排序数据，取消信号或数据与输入或输出信号的组合可实现干扰消除。

3. 发明授权

US07948862B2 Crosstalk cancellation using sliding filters 有权
标题翻译：使用滑动滤波器进行串扰消除
公开(公告)号：US07948862B2
公开(公告)日：2011-05-24
申请号：US11904631
申请日：2007-09-26
申请人： Gavin D. Parnaby
发明人： Gavin D. Parnaby
IPC分类号： H04J1/12
CPC分类号： H04B3/32
摘要： A crosstalk cancellation system and method is disclosed for use in a multi-channel communication system. Crosstalk which couples between channels is cancelled through use of an in-line FFE filter and in-line delay. A cross-connect system associated with each channel includes a cross-connect delay and cross-connect filter. The cross-connect system generates a cancellation signal for each of the channels, which is routed into a junction. The junction subtracts the cancellation signal from the received signal, which has also been delayed and filtered, to remove unwanted cross-talk. During training, cancellation magnitude is monitored at various delay offsets to determine which offset and corresponding filter coefficients, for each delay, maximizes cancellation. The filters are set with filter coefficients that maximize cancellation. The cross-connect delay with the maximum offset is set to zero and its calculated offset amount is established as the in-line delay offset. The other cross-connect delay offsets are adjusted accordingly.
摘要翻译：公开了一种用于多声道通信系统中的串扰消除系统和方法。通过使用在线FFE滤波器和在线延迟来消除耦合在通道之间的串扰。与每个通道相关联的交叉连接系统包括交叉连接延迟和交叉连接滤波器。交叉连接系统为每个通道产生一个消除信号，该通道被路由到一个接头中。结点从接收到的信号中减去消除信号，这也被延迟和滤波，以消除不必要的串扰。在训练期间，以各种延迟偏移来监视消除幅度，以确定对于每个延迟来说哪个偏移和相应的滤波器系数最大化消除。滤波器设置有最大化消除的滤波器系数。具有最大偏移的交叉连接延迟设置为零，并将其计算的偏移量建立为在线延迟偏移。其他交叉连接延迟偏移量相应调整。

4. 发明申请

US20090080325A1 Crosstalk cancellation using sliding filters 有权
标题翻译：使用滑动滤波器进行串扰消除
公开(公告)号：US20090080325A1
公开(公告)日：2009-03-26
申请号：US11904631
申请日：2007-09-26
申请人： Gavin D. Parnaby
发明人： Gavin D. Parnaby
IPC分类号： H04B15/00
CPC分类号： H04B3/32
摘要： A crosstalk cancellation system and method is disclosed for use in a multi-channel communication system. Crosstalk which couples between channels is cancelled through use of an in-line FFE filter and in-line delay. A cross-connect system associated with each channel includes a cross-connect delay and cross-connect filter. The cross-connect system generates a cancellation signal for each of the channels, which is routed into a junction. The junction subtracts the cancellation signal from the received signal, which has also been delayed and filtered, to remove unwanted cross-talk. During training, cancellation magnitude is monitored at various delay offsets to determine which offset and corresponding filter coefficients, for each delay, maximizes cancellation. The filters are set with filter coefficients that maximize cancellation. The cross-connect delay with the maximum offset is set to zero and its calculated offset amount is established as the in-line delay offset. The other cross-connect delay offsets are adjusted accordingly.
摘要翻译：公开了一种用于多声道通信系统中的串扰消除系统和方法。通过使用在线FFE滤波器和在线延迟来消除耦合在通道之间的串扰。与每个通道相关联的交叉连接系统包括交叉连接延迟和交叉连接滤波器。交叉连接系统为每个通道产生一个消除信号，该通道被路由到一个接头中。结点从接收到的信号中减去消除信号，这也被延迟和滤波，以消除不必要的串扰。在训练期间，以各种延迟偏移来监视消除幅度，以确定对于每个延迟来说哪个偏移和相应的滤波器系数最大化消除。滤波器设置有最大化消除的滤波器系数。具有最大偏移的交叉连接延迟设置为零，并将其计算的偏移量建立为在线延迟偏移。其他交叉连接延迟偏移量相应调整。

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