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    Mitigation of Interference and Crosstalk in Communications Systems
    5.
    发明申请
    Mitigation of Interference and Crosstalk in Communications Systems 有权
    通信系统中干扰和串扰的减轻

    公开(公告)号：US20080239937A1

    公开(公告)日：2008-10-02

    申请号：US11694981

    申请日：2007-03-31

    申请人： Mark Alan Erickson ,  Thorkell Gudmundsson ,  Ioannis Kanellakopoulos ,  John Josef Hench

    发明人： Mark Alan Erickson ,  Thorkell Gudmundsson ,  Ioannis Kanellakopoulos ,  John Josef Hench

    IPC分类号： H04J1/12 ,  H04M3/34

    CPC分类号： H04L25/03006 ,  H04L25/0246 ,  H04L2025/03426

    摘要： Signals in a multi-channel, impaired communication system are post-processed at the receiver. A triangular matrix Decision Feedback Demodulator (DFD) at the receiver extracts channels without requiring delivery of receiver parameters to the transmitter. Multi-Input Multi-Output (MIMO) processing matrices and DFD parameters are computed by first applying matrix transformations to diagonalize the noise covariance matrix of the multiple channels received at the receiver. QR decompositions (i.e., decompositions into orthogonal and triangular matrices) are then applied to the main channels to obtain triangular channel matrices. The noise-diagonalizing transformations and QR decompositions are then combined to form the MIMO postprocessing matrices and DFD parameters. MIMO postprocessing matrices and DFD parameters are computed from training data and then adapted during live data transmission.

    摘要翻译： 多通道，受损的通信系统中的信号在接收机上进行后处理。 在接收器处的三角矩阵判决反馈解调器（DFD）提取信道而不需要向发射机传送接收机参数。 通过首先应用矩阵变换来对接收机接收的多个信道的噪声协方差矩阵进行对角化来计算多输入多输出（MIMO）处理矩阵和DFD参数。 然后将QR分解（即，分解成正交和三角矩阵）施加到主信道以获得三角形信道矩阵。 然后将噪声对角化变换和QR分解组合以形成MIMO后处理矩阵和DFD参数。 从训练数据计算MIMO后处理矩阵和DFD参数，然后在实时数据传输期间进行调整。

    Mitigation of interference and crosstalk in communications systems
    6.
    发明授权
    Mitigation of interference and crosstalk in communications systems 有权
    减轻通信系统中的干扰和串扰

    公开(公告)号：US07978591B2

    公开(公告)日：2011-07-12

    申请号：US11694981

    申请日：2007-03-31

    申请人： Mark Alan Erickson ,  Thorkell Gudmundsson ,  Ioannis Kanellakopoulos ,  John Josef Hench

    发明人： Mark Alan Erickson ,  Thorkell Gudmundsson ,  Ioannis Kanellakopoulos ,  John Josef Hench

    IPC分类号： H04J1/12 ,  H04J3/10

    CPC分类号： H04L25/03006 ,  H04L25/0246 ,  H04L2025/03426

    摘要： Signals in a multi-channel, impaired communication system are post-processed at the receiver. A triangular matrix Decision Feedback Demodulator (DFD) at the receiver extracts channels without requiring delivery of receiver parameters to the transmitter. Multi-Input Multi-Output (MIMO) processing matrices and DFD parameters are computed by first applying matrix transformations to diagonalize the noise covariance matrix of the multiple channels received at the receiver. QR decompositions (i.e., decompositions into orthogonal and triangular matrices) are then applied to the main channels to obtain triangular channel matrices. The noise-diagonalizing transformations and QR decompositions are then combined to form the MIMO postprocessing matrices and DFD parameters. MIMO postprocessing matrices and DFD parameters are computed from training data and then adapted during live data transmission.

    摘要翻译： 多通道，受损的通信系统中的信号在接收机上进行后处理。 在接收器处的三角矩阵判决反馈解调器（DFD）提取信道而不需要向发射机传送接收机参数。 通过首先应用矩阵变换来对接收机接收的多个信道的噪声协方差矩阵进行对角化来计算多输入多输出（MIMO）处理矩阵和DFD参数。 然后将QR分解（即，分解成正交和三角矩阵）施加到主信道以获得三角形信道矩阵。 然后将噪声对角化变换和QR分解组合以形成MIMO后处理矩阵和DFD参数。 从训练数据计算MIMO后处理矩阵和DFD参数，然后在实时数据传输期间进行调整。

    Method and system for split-pair reception in twisted-pair communication systems
    8.
    发明授权
    Method and system for split-pair reception in twisted-pair communication systems 失效
    双绞线通信系统中分离对接收的方法和系统

    公开(公告)号：US07649828B2

    公开(公告)日：2010-01-19

    申请号：US10526145

    申请日：2003-09-19

    申请人： Sunil C. Shah ,  Ioannis Kanellakopoulos ,  Mark A. Erickson

    发明人： Sunil C. Shah ,  Ioannis Kanellakopoulos ,  Mark A. Erickson

    IPC分类号： H04J1/12

    CPC分类号： H04L25/14 ,  H04B3/487 ,  H04L5/20

    摘要： A method and system are disclosed for improving the performance of a multiline transmission system by using one or more split-pair receivers in a multiline communications system to identify crosstalk on a pair of transceivers coupled to the split pair receivers, wherein each split pair receiver receives a signal including the crosstalk from each transceiver and provides a corresponding signal vector to a post processing unit, and performing MIMO post-processing on signal vectors received at a receiver from each transceiver and each split-pair receiver while minimizing crosstalk on pairs of lines in the multiline communications system with a frequency equalizer.

    摘要翻译： 公开了一种用于通过使用多行通信系统中的一个或多个分离对接收机来识别耦合到分离对接收机的一对收发机上的串扰来改善多线传输系统的性能的方法和系统，其中每个分离对接收机接收 包括来自每个收发器的串扰的信号，并且向后处理单元提供相应的信号向量，并且对来自每个收发器和每个分离对接收机的接收机处接收的信号矢量执行MIMO后处理，同时使 具有频率均衡器的多线通信系统。