Digital Broadcasting Transission/Reception System Capable of Improving Receiving and Equalizing Performance and Signal Processing Method Thereof
    62.
    发明申请
    Digital Broadcasting Transission/Reception System Capable of Improving Receiving and Equalizing Performance and Signal Processing Method Thereof 有权
    能够改善接收和均衡性能的数字广播转发/接收系统及其信号处理方法

    公开(公告)号:US20070253502A1

    公开(公告)日:2007-11-01

    申请号:US10578094

    申请日:2005-06-23

    IPC分类号: H04L23/00

    摘要: A digital broadcast transmitting and receiving system and a signal processing method thereof that improves the receiving performance of the system. A digital broadcast transmitter includes a randomizer to receive and randomize a data stream into a specified position of which stuff bytes are inserted, a replacement sequence generator to generate known data including a predefined sequence, a stuff-byte exchange unit to insert the known data into the specified position of the data stream into which stuff bytes are inserted, an encoder to encode the data stream output from the stuff-byte exchange unit for an error correction, and a transmission unit to modulate the encoded data stream, RF-convert the modulated data stream and transmit the RF-converted data. The digital broadcast receiving performance is improved even in an inferior multi-path channel by detecting the known data from the received transmission and using the known data for synchronization and equalization in a digital broadcast receiver.

    摘要翻译: 一种提高系统的接收性能的数字广播发送接收系统及其信号处理方法。 数字广播发射机包括:随机化器,用于接收并随机化数据流到插入字节的指定位置;替换序列生成器,用于生成包括预定义序列的已知数据;填充字节交换单元,用于将已知数据插入到 插入填充字节的数据流的指定位置,用于编码从填充字节交换单元输出的用于纠错的数据流的编码器,以及用于调制编码数据流的发送单元,RF调制 数据流并传送RF转换的数据。 通过从接收到的传输中检测已知数据并且使用数字广播接收机中的用于同步和均衡的已知数据,即使在较差的多路径信道中,数字广播接收性能也得到改善。

    Digital broadcasting transmission system and method thereof
    65.
    发明授权
    Digital broadcasting transmission system and method thereof 有权
    数字广播传输系统及其方法

    公开(公告)号:US07823051B2

    公开(公告)日:2010-10-26

    申请号:US11416247

    申请日:2006-05-03

    IPC分类号: H03M13/00

    摘要: A digital broadcasting transmission system and method thereof. The digital broadcasting transmission system, comprises an RS encoder to encode a dual transport stream (TS) which includes a normal stream and a plurality of turbo streams multiplexed together, an interleaver to interleave the encoded dual TS, a turbo processor to detect the turbo streams from the interleaved dual TS and to encode the detected turbo stream, and a trellis encoder to pseudo2 (P-2) vestigial sideband (VSB) code the turbo-processed dual TS, and, then, to perform trellis encoding, and a main multiplexer (MUX) to multiplex the trellis-encoded dual TS by adding a field synchronous signal and a segment synchronous signal thereto.

    摘要翻译: 数字广播传输系统及其方法。 数字广播传输系统包括RS编码器,用于对包括正常流和复用在一起的多个turbo流的双传输流(TS)进行编码,交织器交织编码的双TS,turbo处理器检测turbo流 来自交织的双TS并对所检测到的turbo流进行编码,并且将网格编码器编码为伪T2(P-2)残留边带(VSB),对Turbo处理的双TS进行编码,然后执行网格编码,以及主复用器 (MUX)通过向其提供场同步信号和段同步信号来复用网格编码的双TS。

    Advanced-VSB system (A-VSB)
    66.
    发明授权
    Advanced-VSB system (A-VSB) 有权
    高级VSB系统(A-VSB)

    公开(公告)号:US07639751B2

    公开(公告)日:2009-12-29

    申请号:US11416254

    申请日:2006-05-03

    IPC分类号: H04L5/12

    摘要: A method of resetting a trellis-coded modulation (TCM) encoder to a known state, the TCM encoder including a reset input that resets the TCM encoder to the known state when held at a reset level for a plurality of symbol clock cycles, the method including identifying an event to occur in the future that requires the TCM encoder to be reset to the known state; and holding the reset input of the TCM encoder at the reset level beginning the plurality of clock symbol cycles before a time the event will occur so that the TCM encoder will be reset to the known state immediately before the event occurs.

    摘要翻译: 一种将网格编码调制(TCM)编码器复位到已知状态的方法,所述TCM编码器包括复位输入,所述复位输入在多个符号时钟周期保持在复位电平时将TCM编码器复位到已知状态,所述方法 包括识别将来需要将TCM编码器复位到已知状态的事件; 并且在发生事件之前将TCM编码器的复位输入保持在复位电平,开始多个时钟符号周期,使得TCM编码器将在事件发生之前立即复位到已知状态。

    ADVANCED-VSB SYSTEM (A-VSB)
    69.
    发明申请
    ADVANCED-VSB SYSTEM (A-VSB) 有权
    高级VSB系统(A-VSB)

    公开(公告)号:US20100054361A1

    公开(公告)日:2010-03-04

    申请号:US12615414

    申请日:2009-11-10

    IPC分类号: H04L27/00 H04L27/06

    摘要: A method of resetting a trellis-coded modulation (TCM) encoder to a known state, the TCM encoder including a reset input that resets the TCM encoder to the known state when held at a reset level for a plurality of symbol clock cycles, the method including identifying an event to occur in the future that requires the TCM encoder to be reset to the known state; and holding the reset input of the TCM encoder at the reset level beginning the plurality of clock symbol cycles before a time the event will occur so that the TCM encoder will be reset to the known state immediately before the event occurs.

    摘要翻译: 一种将网格编码调制(TCM)编码器复位到已知状态的方法,所述TCM编码器包括复位输入,所述复位输入在多个符号时钟周期保持在复位电平时将TCM编码器复位到已知状态,所述方法 包括识别将来需要将TCM编码器复位到已知状态的事件; 并且在发生事件之前将TCM编码器的复位输入保持在复位电平,开始多个时钟符号周期,使得TCM编码器将在事件发生之前立即复位到已知状态。