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    Sparse channel equalization
    1.
    发明申请
    Sparse channel equalization 有权
    稀疏信道均衡

    公开(公告)号：US20110002242A9

    公开(公告)日：2011-01-06

    申请号：US10386795

    申请日：2003-03-12

    申请人： Randall Perlow ,  Nabil Yousef ,  Charles Brooks ,  Tianmin Liu

    发明人： Randall Perlow ,  Nabil Yousef ,  Charles Brooks ,  Tianmin Liu

    IPC分类号： H04B7/005

    CPC分类号： H04L25/0218 ,  H04L25/03057 ,  H04L25/03987 ,  H04L2025/0349 ,  H04L2025/03617 ,  H04L2025/0377

    摘要： Sparse channel equalization may be achieved by receiving a signal via a multi-path communication channel. The equalization then continues by extracting sparse information regarding the multiple path communication channel from the signal. Such sparse information generally indicates the position of the signals received via each of the multiple paths. The equalization then continues by estimating a channel response of the multiple path communication channel based on the sparse information. The equalization then continues by generating equalization taps (or coefficients) based on the channel response. The equalization then continues by equalizing the signal based on the equalization taps.

    摘要翻译： 可以通过经由多径通信信道接收信号来实现稀疏信道均衡。 然后通过从信号中提取关于多路径通信信道的稀疏信息来继续均衡。 这种稀疏信息通常表示通过多路径中的每一条接收到的信号的位置。 然后通过基于稀疏信息估计多路径通信信道的信道响应来继续均衡。 然后通过基于信道响应产生均衡抽头（或系数）来继续均衡。 然后通过基于均衡抽头均衡信号来继续均衡。

    SYSTEM AND METHOD FOR TERRESTRIAL HIGH-DEFINITION TELEVISION RECEPTION
    2.
    发明申请
    SYSTEM AND METHOD FOR TERRESTRIAL HIGH-DEFINITION TELEVISION RECEPTION 有权
    用于地面高分辨率电视接收的系统和方法

    公开(公告)号：US20090051821A1

    公开(公告)日：2009-02-26

    申请号：US12255182

    申请日：2008-10-21

    申请人： Randall Perlow ,  Charles Brooks ,  Steven Jaffe ,  Tianmin Liu

    发明人： Randall Perlow ,  Charles Brooks ,  Steven Jaffe ,  Tianmin Liu

    IPC分类号： H04N5/455

    CPC分类号： H04L25/0224 ,  H04L27/0008 ,  H04L2025/03503

    摘要： An adaptive receiver is disclosed for optimally receiving and processing signals. The receiver utilizes one or more memory blocks to store groups of incoming symbols. The groups of symbols are processed by a channel estimation subsystem to determine channel characteristics. The receiver determines the appropriate demodulation and decoding strategy to implement based on the determined channel characteristics. The receiver includes a plurality of demodulation and decoding schemes, one of which is selected based on the results of a channel estimation analysis.

    摘要翻译： 公开了用于最佳地接收和处理信号的自适应接收机。 接收机利用一个或多个存储器块来存储输入符号组。 符号组由信道估计子系统处理以确定信道特性。 接收机根据确定的信道特性确定适当的解调和解码策略来实现。 接收机包括多个解调和解码方案，其中之一是基于信道估计分析的结果来选择的。

    System and method for terrestrial high-definition television reception
    4.
    发明授权
    System and method for terrestrial high-definition television reception 有权
    地面高清电视接收系统和方法

    公开(公告)号：US07440520B2

    公开(公告)日：2008-10-21

    申请号：US11754866

    申请日：2007-05-29

    申请人： Randall Perlow ,  Charles Brooks ,  Steven Jaffe ,  Tianmin Liu

    发明人： Randall Perlow ,  Charles Brooks ,  Steven Jaffe ,  Tianmin Liu

    IPC分类号： H04L27/06

    CPC分类号： H04L25/0224 ,  H04L27/0008 ,  H04L2025/03503

    摘要： An adaptive receiver is disclosed for optimally receiving and processing signals. The receiver utilizes one or more memory blocks to store groups of incoming symbols. The groups of symbols are processed by a channel estimation subsystem to determine channel characteristics. The receiver determines the appropriate demodulation and decoding strategy to implement based on the determined channel characteristics. The receiver includes a plurality of demodulation and decoding schemes, one of which is selected based on the results of a channel estimation analysis.

    摘要翻译： 公开了用于最佳地接收和处理信号的自适应接收机。 接收机利用一个或多个存储器块来存储输入符号组。 符号组由信道估计子系统处理以确定信道特性。 接收机根据确定的信道特性确定适当的解调和解码策略来实现。 接收机包括多个解调和解码方案，其中之一是基于信道估计分析的结果来选择的。

    SYSTEM AND METHOD FOR TERRESTRIAL HIGH-DEFINITION TELEVISION RECEPTION
    5.
    发明申请
    SYSTEM AND METHOD FOR TERRESTRIAL HIGH-DEFINITION TELEVISION RECEPTION 有权
    用于地面高分辨率电视接收的系统和方法

    公开(公告)号：US20070223563A1

    公开(公告)日：2007-09-27

    申请号：US11754866

    申请日：2007-05-29

    申请人： Randall Perlow ,  Charles Brooks ,  Steven Jaffe ,  Tianmin Liu

    发明人： Randall Perlow ,  Charles Brooks ,  Steven Jaffe ,  Tianmin Liu

    IPC分类号： H04B1/00

    CPC分类号： H04L25/0224 ,  H04L27/0008 ,  H04L2025/03503

    摘要： An adaptive receiver is disclosed for optimally receiving and processing signals. The receiver utilizes one or more memory blocks to store groups of incoming symbols. The groups of symbols are processed by a channel estimation subsystem to determine channel characteristics. The receiver determines the appropriate demodulation and decoding strategy to implement based on the determined channel characteristics. The receiver includes a plurality of demodulation and decoding schemes, one of which is selected based on the results of a channel estimation analysis.

    摘要翻译： 公开了用于最佳地接收和处理信号的自适应接收机。 接收机利用一个或多个存储器块来存储输入符号组。 符号组由信道估计子系统处理以确定信道特性。 接收机根据确定的信道特性确定适当的解调和解码策略来实现。 接收机包括多个解调和解码方案，其中之一是基于信道估计分析的结果来选择的。

    System and method for terrestrial high-definition television reception
    6.
    发明授权
    System and method for terrestrial high-definition television reception 有权
    地面高清电视接收系统和方法

    公开(公告)号：US07224726B2

    公开(公告)日：2007-05-29

    申请号：US10109496

    申请日：2002-03-28

    申请人： Randall Perlow ,  Charles Brooks ,  Steven Jaffe ,  Tianmin Liu

    发明人： Randall Perlow ,  Charles Brooks ,  Steven Jaffe ,  Tianmin Liu

    IPC分类号： H04H7/40

    CPC分类号： H04L25/0224 ,  H04L27/0008 ,  H04L2025/03503

    摘要： An adaptive receiver is disclosed for optimally receiving and processing signals. The receiver utilizes one or more memory blocks to store groups of incoming symbols. The groups of symbols are processed by a channel estimation subsystem to determine channel characteristics. The receiver determines the appropriate demodulation and decoding strategy to implement based on the determined channel characteristics. The receiver includes a plurality of demodulation and decoding schemes, one of which is selected based on the results of a channel estimation analysis.

    摘要翻译： 公开了用于最佳地接收和处理信号的自适应接收机。 接收机利用一个或多个存储器块来存储输入符号组。 符号组由信道估计子系统处理以确定信道特性。 接收机根据确定的信道特性确定适当的解调和解码策略来实现。 接收机包括多个解调和解码方案，其中之一是基于信道估计分析的结果来选择的。

    Image compression encoding and decoding method and apparatus therefor
    9.
    发明授权
    Image compression encoding and decoding method and apparatus therefor 失效

    公开(公告)号：US5533138A

    公开(公告)日：1996-07-02

    申请号：US239848

    申请日：1994-05-09

    申请人： Yong-Kyu Kim ,  Tianmin Liu ,  Steven T. Jaffe ,  Christopher H. Strolle

    发明人： Yong-Kyu Kim ,  Tianmin Liu ,  Steven T. Jaffe ,  Christopher H. Strolle

    IPC分类号： H04N5/92 ,  G06T9/00 ,  H03M7/00 ,  H04N1/41 ,  H04N5/783 ,  H04N5/926 ,  H04N7/26 ,  H04N7/28 ,  H04N7/30 ,  H04N7/12 ,  G06K9/36

    CPC分类号： H04N5/9264 ,  H04N19/124 ,  H04N19/14 ,  H04N19/147 ,  H04N19/15 ,  H04N19/154 ,  H04N19/172 ,  H04N19/176 ,  H04N19/18 ,  H04N19/196 ,  H04N19/60 ,  H04N19/94 ,  H04N19/146 ,  H04N5/783

    摘要： Television images to be digitally recorded are divided into blocks and the discrete cosine transform DCT of each block is taken. The DC coefficient of each DCT block is scalar-quantized, and its AC coefficients are classified-vector-quantized (CVQ). The square of the value that part or all the AC coefficients among horizontal AC coefficients including a first AC coefficient and vertical AC coefficients including a second AC coefficient, according to the zigzag scanning sequence of DCT block, are subtracted from a representative value of a preset reference class. Using a multilevel compression method, lowest level codes are vector-partitioned by P-units at equal intervals with respect to each classified DCT block, and code books of representative vectors corresponding to the partitioned vectors are provided. Indices of corresponding representative vectors in respective code books and the classified codes are taken as encoding data corresponding to AC coefficients to keep a constant number of bits in the lowest level codes. Then, errors created in a preceding level are corrected. Code books of S-units of representative vectors corresponding to the errors are provided again, and corresponding indices and parity data in the respective code books are provided. Here, codes are output in which an image is more compactly compressed in lower levels, and higher levels have more elaborate picture quality. During tape recording, the codes descriptive of the scalar quantized DC term, the classification of the AC terms and the lowest-level vector-quantization index for each successive DCT block are grouped together for recording in a respective one of regularly spaced equal-length segments of the recording tracks. Decoding is performed in the reverse sequence of encoding. During a high speed search, only lowest level codes having a constant number of bits are decoded regardless of the complexity of the picture, so that picture quality is good enough to discern the nature of the images.

    Data detection for partial response channels
    10.
    发明授权
    Data detection for partial response channels 失效
    部分响应通道的数据检测

    公开(公告)号：US5757855A

    公开(公告)日：1998-05-26

    申请号：US565608

    申请日：1995-11-29

    申请人： Christopher Hugh Strolle ,  Tianmin Liu ,  Steven Todd Jaffe

    发明人： Christopher Hugh Strolle ,  Tianmin Liu ,  Steven Todd Jaffe

    IPC分类号： G11B20/10 ,  G11B20/18 ,  H04L25/03 ,  H04L25/08 ,  H04L25/497 ,  H04L5/12 ,  H04L23/02

    CPC分类号： H04L25/03267

    摘要： A data detector is disclosed which includes a source of a data signal representing a sequence of symbols. A maximum likelihood sequence detector, is coupled to the data signal source, and produces a most likely survivor sequence, which includes a plurality of symbols. A decision feedback equalizer and a phase detector, controlling the timing of the sampling of the data signal, are made responsive to the most likely survivor sequence.

    摘要翻译： 公开了一种数据检测器，其包括表示符号序列的数据信号源。 最大似然序列检测器耦合到数据信号源，并且产生最可能的存活序列，其包括多个符号。 对最可能的幸存者序列作出响应，决定反馈均衡器和相位检测器控制数据信号的采样定时。