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    Equalizers for layered modulated and other signals
    3.
    发明申请
    Equalizers for layered modulated and other signals 有权
    均衡器用于分层调制和其他信号

    公开(公告)号：US20070116108A1

    公开(公告)日：2007-05-24

    申请号：US11656662

    申请日：2007-01-22

    申请人： Ernest Chen ,  Tung-Sheng Lin ,  Weizheng Wang ,  William Lindsey

    发明人： Ernest Chen ,  Tung-Sheng Lin ,  Weizheng Wang ,  William Lindsey

    IPC分类号： H03K5/159 ,  H04B1/10

    CPC分类号： H04L27/3488 ,  H04L25/03019 ,  H04L2025/03401 ,  H04L2025/0342 ,  H04L2025/0349

    摘要： A method and apparatus for equalizing digital data signals is disclosed. The method comprises the steps of demodulating and decoding an input signal having input data to produce a data output, remodulating the data output to produce a training sequence including an idealized input signal, wherein the training sequence is comprised of adjacent symbols in the input data, and generating equalizer parameters from the training sequence. The apparatus comprises a demodulator (for demodulating an input signal to produce a data output), a modulator communicatively coupled to the demodulator (for remodulating the data output to produce a training sequence including an idealized input signal wherein the training sequence is comprised of adjacent symbols in the input data), and a parameter generation module communicatively coupled to the modulator (for generating equalizer parameters from the training sequence).

    摘要翻译： 公开了一种用于均衡数字数据信号的方法和装置。 该方法包括以下步骤：解调和解码具有输入数据的输入信号以产生数据输出，重新调制数据输出以产生包括理想化输入信号的训练序列，其中训练序列由输入数据中的相邻符号组成， 并从训练序列生成均衡器参数。 该装置包括解调器（用于解调输入信号以产生数据输出），通信地耦合到解调器的调制器（用于重新调制数据输出以产生包括理想化输入信号的训练序列，其中训练序列由相邻符号组成 在输入数据中）以及通信地耦合到调制器的参数生成模块（用于从训练序列生成均衡器参数）。

    Unblind equalizer architecture for digital communication systems
    4.
    发明申请
    Unblind equalizer architecture for digital communication systems 有权
    用于数字通信系统的无盲均衡器架构

    公开(公告)号：US20050041763A1

    公开(公告)日：2005-02-24

    申请号：US10691032

    申请日：2003-10-22

    申请人： Weizheng Wang ,  Tung-Sheng Lin ,  Ernest Chen ,  William Lindsey

    发明人： Weizheng Wang ,  Tung-Sheng Lin ,  Ernest Chen ,  William Lindsey

    IPC分类号： H04B7/185 ,  H04B1/10

    CPC分类号： H04B7/18515

    摘要： A method and apparatus for equalizing digital data signals is disclosed. The method comprises the steps of demodulating and decoding an input signal having input data to produce a data output, remodulating the data output to produce a pseudo-training sequence including an idealized input signal, and generating equalizer parameters from the pseudo-training sequence. The apparatus comprises a demodulator for demodulating an input signal to produce a data output, a modulator, communicatively coupled to the demodulator, for remodulating the data output to produce a pseudo-training sequence including an idealized input signal, and a parameter generation module, communicatively coupled to the modulator for generating equalizer parameters from the pseudo-training sequence.

    摘要翻译： 公开了一种用于均衡数字数据信号的方法和装置。 该方法包括以下步骤：解调和解码具有输入数据的输入信号以产生数据输出，重新调制数据输出以产生包括理想化输入信号的伪训练序列，以及从伪训练序列生成均衡器参数。 该装置包括用于解调输入信号以产生数据输出的解调器，通信地耦合到解调器的调制器，用于重新调制数据输出以产生包括理想化输入信号的伪训练序列和参数生成模块，通信地 耦合到用于从伪训练序列产生均衡器参数的调制器。

    Simplified scrambling scheme for satellite broadcasting systems
    5.
    发明申请
    Simplified scrambling scheme for satellite broadcasting systems 有权
    卫星广播系统的简化扰频方案

    公开(公告)号：US20060215785A1

    公开(公告)日：2006-09-28

    申请号：US10568384

    申请日：2004-08-27

    申请人： Ernest Chen ,  Dennis Lai ,  Tung-Sheng Lin ,  William Lindsey ,  Shamik Maitra ,  Joseph Santoru ,  Guangcai Zhou

    发明人： Ernest Chen ,  Dennis Lai ,  Tung-Sheng Lin ,  William Lindsey ,  Shamik Maitra ,  Joseph Santoru ,  Guangcai Zhou

    IPC分类号： H04L27/12

    CPC分类号： H04L25/03866 ,  H04B7/18523 ,  H04L27/36 ,  H04N21/23895 ,  H04N21/4382 ,  H04N21/43853 ,  H04N21/6143 ,  H04N21/6193

    摘要： A simplified scrambling scheme that unifies all signals of a satellite broadcasting system, including frame header (404), frame body (402) and pilot symbols (408) with a common reference phase. This results in the simplification and increased flexibility of the receiver front-end design without affecting the overall system performance. In many current communications systems with frame headers and pilot symbols, the phases of frame headers and pilot syrnbols are not designed to be aligned with any constellation points of the modulated data from the frame body. This scrambling scheme takes into account possible impact due to irregular phase changes between frame headers/pilot symbols and modulated data.

    摘要翻译： 一种简化的加扰方案，其将具有公共参考相位的卫星广播系统的所有信号（包括帧头部（404）），帧体（402）和导频符号（408）统一起来。 这导致了接收机前端设计的简化和增加的灵活性，而不会影响整个系统的性能。 在具有帧头和导频符号的许多当前通信系统中，帧头和导频符号的相位不被设计为与来自帧体的调制数据的任何星座点对准。 该加扰方案考虑到由帧头/导频符号和调制数据之间的不规则相位变化引起的可能的影响。

    Tri-head KaKuKa feed for single-offset dish antenna
    10.
    发明申请
    Tri-head KaKuKa feed for single-offset dish antenna 有权

    公开(公告)号：US20070146223A1

    公开(公告)日：2007-06-28

    申请号：US11712327

    申请日：2007-02-28

    申请人： Kesse Ho ,  John Norin ,  Ernest Chen ,  Joseph Santoru

    发明人： Kesse Ho ,  John Norin ,  Ernest Chen ,  Joseph Santoru

    IPC分类号： H01Q13/00

    CPC分类号： H01Q25/007 ,  H01Q5/45 ,  H01Q19/17

    摘要： A method and apparatus for receiving signals transmitted from a plurality of communications satellites. An apparatus in accordance with the present invention comprises a reflecting surface having a focal point, and a plurality of low noise block down converters with feedhorns (LNBFs), each LNBF having a boresight, wherein at least a first LNBF receives signals in a first frequency band transmitted from a first communication satellite location that are focused at a first focal point and at least a second LNBF receives signals in a second frequency band transmitted from a second satellite location that are focused at a second focal point, wherein the boresight of the first LNBF is closer to the first focal point than the boresight of the second LNBF is to the second focal point.