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    Apparatus and Method for Sensing an Atsc Signal in Low Signal-to-Noise Ratio
    3.
    发明申请
    Apparatus and Method for Sensing an Atsc Signal in Low Signal-to-Noise Ratio 审中-公开
    用于感测低信噪比的Atsc信号的装置和方法

    公开(公告)号：US20090052588A1

    公开(公告)日：2009-02-26

    申请号：US12223752

    申请日：2006-06-05

    申请人： Wen Gao ,  Paul Gothard Knutson ,  Joshua Lawrence Koslov

    发明人： Wen Gao ,  Paul Gothard Knutson ,  Joshua Lawrence Koslov

    IPC分类号： H04L27/06

    CPC分类号： H04N21/4345 ,  H04N5/4401 ,  H04N21/4524

    摘要： A Wireless Regional Area Network (WRAN) receiver comprises a transceiver for communicating with a wireless network over one of a number of channels, and an Advanced Television Systems Committee (ATSC) signal detector for use in forming a supported channel list comprising those ones of the number of channels upon which an ATSC signal was not detected, wherein the ATSC signal detector includes a filter matched to a PN63 sequence of an ATSC signal for filtering a received signal on one of the number of channels for providing a filtered signal for use in determining if the received signal is an ATSC signal. The ATSC signal detector can be a coherent or a non-coherent ATSC signal detector.

    摘要翻译： 无线区域网络（WRAN）接收机包括用于通过多个信道之一与无线网络进行通信的收发机，以及用于形成支持的频道列表的高级电视系统委员会（ATSC）信号检测器，其包括 没有检测到ATSC信号的信道数量，其中ATSC信号检测器包括与ATSC信号的PN63序列匹配的滤波器，用于在多个信道之一上滤波接收信号，以提供用于确定的滤波信号 如果接收到的信号是ATSC信号。 ATSC信号检测器可以是相干或非相干ATSC信号检测器。

    Apparatus and Method for Sensing an ATSC Signal in Low Signal-To-Noise Ratio
    5.
    发明申请
    Apparatus and Method for Sensing an ATSC Signal in Low Signal-To-Noise Ratio 审中-公开
    用于感测低信噪比的ATSC信号的装置和方法

    公开(公告)号：US20090161024A1

    公开(公告)日：2009-06-25

    申请号：US12084375

    申请日：2006-06-05

    申请人： Wen Gao ,  Paul Gothard Knutson ,  Joshua Lawrence Koslov

    发明人： Wen Gao ,  Paul Gothard Knutson ,  Joshua Lawrence Koslov

    IPC分类号： H04N5/50

    CPC分类号： H04N5/46 ,  H04L27/066 ,  H04L2027/0055 ,  H04N5/50 ,  H04N17/04 ,  H04N21/4345 ,  H04N21/4383 ,  H04N21/6131 ,  H04W16/14

    摘要： A Wireless Regional Area Network (WRAN) receiver comprises a transceiver for communicating with a wireless network over one of a number of channels, and an Advanced Television Systems Committee (ATSC) signal detector for use in forming a supported channel list comprising those ones of the number of channels upon which an ATSC signal was not detected, wherein the ATSC signal detector includes a filter matched to a PN511 sequence of an ATSC signal for filtering a received signal on one of the number of channels for providing a filtered signal for use in determining if the received signal is an ATSC signal. The ATSC signal detector can be a coherent or a non-coherent ATSC signal detector.

    摘要翻译： 无线区域网络（WRAN）接收机包括用于通过多个信道之一与无线网络进行通信的收发机，以及用于形成支持的频道列表的高级电视系统委员会（ATSC）信号检测器，其包括 没有检测到ATSC信号的信道数量，其中ATSC信号检测器包括与ATSC信号的PN511序列匹配的滤波器，用于对多个信道之一上的接收信号进行滤波，以提供滤波信号用于确定 如果接收到的信号是ATSC信号。 ATSC信号检测器可以是相干或非相干ATSC信号检测器。

    METHOD AND APPARATUS FOR INTERFERENCE MITIGATION IN A WIRELESS HOME GATEWAY INTERFACE
    9.
    发明申请
    METHOD AND APPARATUS FOR INTERFERENCE MITIGATION IN A WIRELESS HOME GATEWAY INTERFACE 审中-公开
    无线家庭网关接口干扰减轻的方法和装置

    公开(公告)号：US20120274859A1

    公开(公告)日：2012-11-01

    申请号：US13514303

    申请日：2010-02-09

    申请人： Paul Gothard Knutson ,  Wen Gao ,  Benyuan Zhang ,  Hou-Shin Chen

    发明人： Paul Gothard Knutson ,  Wen Gao ,  Benyuan Zhang ,  Hou-Shin Chen

    IPC分类号： H04N5/38

    CPC分类号： H04B1/0475 ,  H04L12/66 ,  H04N21/43615 ,  H04N21/43637 ,  H04W28/04

    摘要： The invention relates to a wireless home gateway apparatus and methods of wirelessly delivering audio and/or video programs between a home gateway and a client device and to interference mitigation techniques on such system. Specifically, the invention relates to transmitting an audio video program on a first channel, receiving a control signal from a remote control indicating interference on said first channel, changing the transmission channel to a second channel, and transmitting data indicating said second channel to said remote control.

    摘要翻译： 本发明涉及无线家庭网关设备和在家庭网关和客户端设备之间无线传送音频和/或视频节目的方法以及在这种系统上的干扰减轻技术。 具体地，本发明涉及在第一信道上发送音频视频节目，从遥控器接收指示对所述第一信道的干扰的控制信号，将传输信道改变为第二信道，以及向所述远端发送指示所述第二信道的数据 控制。

    Fast cycle slip detection and correction
    10.
    发明申请
    Fast cycle slip detection and correction 审中-公开
    快速循环滑移检测和校正

    公开(公告)号：US20120051478A1

    公开(公告)日：2012-03-01

    申请号：US13138942

    申请日：2010-05-28

    申请人： Dirk Schmitt ,  Wen Gao ,  Paul Gothard Knutson

    发明人： Dirk Schmitt ,  Wen Gao ,  Paul Gothard Knutson

    IPC分类号： H04L7/00

    CPC分类号： H04L27/2678 ,  H04H40/90 ,  H04L7/0062 ,  H04L7/042 ,  H04L7/10 ,  H04L27/0014 ,  H04L27/2613 ,  H04L27/2656 ,  H04L27/2679 ,  H04L2027/0053 ,  H04L2027/0067 ,  H04W56/005

    摘要： A method of detecting and correcting cycle slip in a data stream including sync symbol blocks and data symbol blocks prior to feedback carrier recovery is described. A phase ambiguity angle is computed upon detecting a last sync symbol of a sync symbol block in the data stream. A cycle slip corrector initiates cycle slip correction upon determining the computed phase ambiguity angle is different from a previous computed phase ambiguity angle to generate a corrected data stream. The corrected data stream is provided to a feedback carrier recovery circuit.

    摘要翻译： 描述了在反馈载波恢复之前检测和校正包括同步符号块和数据符号块的数据流中的周期滑移的方法。 通过检测数据流中的同步符号块的最后同步符号来计算相位模糊角度。 确定计算出的相位模糊角度与先前计算出的相位模糊角度不同，循环滑移校正器启动循环滑差校正，以产生校正的数据流。 校正的数据流被提供给反馈载波恢复电路。