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    Broadcast retransmitting method, broadcast retransmitting apparatus, replay apparatus, and broadcast retransmitting system using the same
    18.
    发明授权
    Broadcast retransmitting method, broadcast retransmitting apparatus, replay apparatus, and broadcast retransmitting system using the same 有权
    广播重传方法，广播重发装置，重播装置，以及使用该广播重发装置的广播重传系统

    公开(公告)号：US08670368B2

    公开(公告)日：2014-03-11

    申请号：US12948378

    申请日：2010-11-17

    申请人： Yong-deok Chang ,  Jung-jin Kim ,  Sun-bum Han

    发明人： Yong-deok Chang ,  Jung-jin Kim ,  Sun-bum Han

    IPC分类号： H04J3/08

    CPC分类号： H04L27/0008 ,  H04H20/61 ,  H04H60/41 ,  H04L5/0062 ,  H04L27/0006 ,  H04L27/0012

    摘要： A broadcast retransmitting method, a broadcast retransmitting apparatus, a relay apparatus and a broadcast retransmitting system using the same, are provided. The broadcast retransmitting apparatus includes a demodulation unit which receives and demodulates a modulated broadcast, a modulation unit which modulates the demodulated broadcast, a spectrum sensing unit which detects an available band through spectrum sensing, and a control unit which retransmits the modulated broadcast to at least one surrounding apparatus. The broadcast retransmitting method includes receiving and demodulating a broadcast which has been modulated according to a first modulation method, and modulating the demodulated broadcast according to a second modulation method different from the first modulation method; detecting an available band from an idle band through spectrum sensing; and retransmitting the broadcast which has been modulated in the second modulation method to at least one surrounding apparatus using the detected available band.

    摘要翻译： 提供广播重发方法，广播重发装置，中继装置和使用其的广播重传系统。 广播重传装置包括接收和解调调制广播的解调单元，调制解调广播的调制单元，通过频谱感测检测可用频带的频谱感测单元，以及至少将调制广播重发的控制单元 一个周边设备。 广播重传方法包括：接收和解调根据第一调制方法被调制的广播，并且根据与第一调制方法不同的第二调制方法调制解调的广播; 通过频谱感测从空闲频段检测可用频带; 并且使用所检测的可用频带将已经以第二调制方法调制的广播重传到至少一个周围设备。

    TRELLIS ENCODER AND TRELLIS ENCODING DEVICE HAVING THE SAME
    19.
    发明申请
    TRELLIS ENCODER AND TRELLIS ENCODING DEVICE HAVING THE SAME 有权
    TRELLIS编码器和TRELLIS编码器具

    公开(公告)号：US20110267209A1

    公开(公告)日：2011-11-03

    申请号：US13181154

    申请日：2011-07-12

    申请人： Eui-jun Park ,  Jung-jin Kim ,  Seok-hyun Yoon ,  Kyo-shin Choo ,  Keon-yong Seok

    发明人： Eui-jun Park ,  Jung-jin Kim ,  Seok-hyun Yoon ,  Kyo-shin Choo ,  Keon-yong Seok

    IPC分类号： H03M7/00 ,  G06F11/10 ,  H03M13/27

    CPC分类号： H04L1/004 ,  H03M13/235 ,  H04N21/2383

    摘要： A trellis encoding device includes a plurality of trellis encoders to perform trellis-encoding of a transport stream into which a supplementary reference signal (SRS) has been inserted, and performs a memory reset in a region that precedes an SRS; and a parity compensation unit to compensate for parities of the transport stream in accordance with values stored in memories included in the trellis encoders. The plurality of trellis encoders may be implemented in diverse types. The trellis encoding device can perform a memory reset selectively using the stored value of the memory and the inverted value thereof, or selectively using the stored value of the memory and a fixed value. By properly resetting the memory in processing the transport stream into which the SRS has been inserted, DC offset can be reduced.

    摘要翻译： 网格编码装置包括多个网格编码器，用于对已经插入补充参考信号（SRS）的传输流进行网格编码，并且在SRS之前的区域中执行存储器复位; 以及奇偶补偿单元，用于根据存储在包括在网格编码器中的存储器中的值来补偿传输流的奇偶校验。 多个网格编码器可以以不同类型实现。 网格编码装置可以使用存储器的存储值和其反相值有选择地执行存储器复位，或者选择性地使用存储器的存储值和固定值。 通过在处理已经插入SRS的传输流中适当地重置存储器，可以减小DC偏移。