DTV TRANSMITTING SYSTEM AND RECEIVING SYSTEM AND METHOD OF PROCESSING TELEVISION SIGNAL
    103.
    发明申请
    DTV TRANSMITTING SYSTEM AND RECEIVING SYSTEM AND METHOD OF PROCESSING TELEVISION SIGNAL 有权
    数字电视发射系统及接收系统及处理电视信号的方法

    公开(公告)号:US20110176061A1

    公开(公告)日:2011-07-21

    申请号:US13078854

    申请日:2011-04-01

    IPC分类号: H04N5/455

    摘要: A digital television transmitting system includes a pre-processor, a packet generator, an RS encoder, and a trellis encoder. The pre-processor pre-processes enhanced data by coding the enhanced data for first forward error correction (FEC) and expanding the FEC-coded enhanced data. The packet generator generates first and second enhanced data packets including the pre-processed enhanced data and main data packets and multiplexes the enhanced and main data packets. The first enhanced data packet includes an adaptation field including the pre-processed enhanced data and second enhanced data packet includes a payload region including the pre-processed enhanced data. The RS encoder performs RS encoding on the multiplexed data packets for second forward error correction (FEC), and the trellis encoder performs trellis encoding on the RS-coded data packets.

    摘要翻译: 数字电视发射系统包括预处理器,分组发生器,RS编码器和网格编码器。 预处理器通过对用于第一前向纠错(FEC)的增强数据进行编码并扩展FEC编码的增强数据来预处理增强数据。 分组生成器产生包括预处理的增强数据和主数据分组的第一和第二增强数据分组,并且复用增强和主数据分组。 第一增强数据分组包括包括预处理增强数据的适配字段,第二增强数据分组包括包括预处理增强数据的有效载荷区域。 RS编码器对用于第二前向纠错(FEC)的复用数据分组执行RS编码,网格编码器对RS编码的数据分组执行格状编码。

    DTV receiving system and method of processing DTV signal
    104.
    发明授权
    DTV receiving system and method of processing DTV signal 有权
    DTV接收系统及DTV信号处理方法

    公开(公告)号:US07940855B2

    公开(公告)日:2011-05-10

    申请号:US11774546

    申请日:2007-07-06

    IPC分类号: H04L27/00 H04N5/38

    摘要: A digital broadcast transmitter and a method of processing a DTV signal in the digital broadcast transmitter are disclosed. The digital broadcast transmitter includes a pre-processor, a first multiplexer, a post-processor, and a second multiplexer. The pre-processor includes a first interleaver, a group formatter, and a packer formatter. The first interleaver interleaves symbols corresponding to mobile service data. The group formatter maps data corresponding to the interleaved symbols into at least one region of a data group and adds place holders for main service data and non-systematic RS parity data to the data group. The packet formatter removes the place holders for the main service data and the non-systematic RS parity data, and generates mobile service data packets having data in the data group in which the place holders for the main service data and the non-systematic RS parity data are removed.

    摘要翻译: 公开了一种数字广播发射机和数字广播发射机中DTV信号处理方法。 数字广播发射机包括预处理器,第一多路复用器,后处理器和第二多路复用器。 预处理器包括第一交织器,组格式器和封隔器格式化器。 第一交织器交织对应于移动业务数据的符号。 组格式化器将对应于交织符号的数据映射到数据组的至少一个区域,并将主服务数据和非系统RS奇偶校验数据的占位符添加到数据组。 分组格式化器移除主服务数据和非系统RS奇偶校验数据的占位符,并生成具有数据组中的数据的移动业务数据分组,其中用于主业务数据和非系统RS奇偶校验的占位符 数据被删除。

    DTV transmitting system and receiving system and method of processing broadcast data
    109.
    发明授权
    DTV transmitting system and receiving system and method of processing broadcast data 有权
    数字电视发射系统和接收系统及处理广播数据的方法

    公开(公告)号:US07882422B2

    公开(公告)日:2011-02-01

    申请号:US12831157

    申请日:2010-07-06

    IPC分类号: H03M13/00

    摘要: A digital television transmitting system includes a pre-processor, a packet generator, an RS encoder, and a trellis encoder. The pre-processor pre-processes enhanced data by coding the enhanced data for first forward error correction and expanding the FEC-coded enhanced data. The packet generator generates enhanced data packets including the pre-processed enhanced data and main data packets and multiplexes the enhanced and main data packets. Each enhanced data packet includes an adaptation field in which the pre-processed enhanced data are inserted. The RS encoder performs RS encoding on the multiplexed data packets for second forward error correction, and the trellis encoder performs trellis encoding on the RS-coded data packets.

    摘要翻译: 数字电视发射系统包括预处理器,分组发生器,RS编码器和网格编码器。 预处理器通过对用于第一前向纠错的增强数据进行编码并扩展FEC编码的增强数据来预处理增强数据。 分组生成器生成增强的数据分组,包括预处理的增强数据和主数据分组,并且复用增强和主数据分组。 每个增强数据分组包括其中插入预处理的增强数据的适配字段。 RS编码器对多路复用的数据分组进行RS编码,用于第二次前向纠错,网格编码器对RS编码数据分组进行格状编码。

    Digital television transmitting system and receiving system and method of processing broadcast data
    110.
    发明授权
    Digital television transmitting system and receiving system and method of processing broadcast data 有权
    数字电视发射系统和接收系统及处理广播数据的方法

    公开(公告)号:US07839950B2

    公开(公告)日:2010-11-23

    申请号:US11760656

    申请日:2007-06-08

    IPC分类号: H04L25/49

    摘要: A digital television receiving system includes a first known data detector, a second known data detector, and a selector. The first known data detector detects a location of a first known data sequence in a broadcast signal by calculating a first correlation value between the broadcast signal and a first reference known data sequence. Similarly, the second known data detector detects a location of a second known data sequence in the broadcast signal by calculating a second correlation value between the broadcast signal and a second reference known data sequence. The selector selects the location information detected by one of the first and second known data detectors with a greater correlation value.

    摘要翻译: 数字电视接收系统包括第一已知数据检测器,第二已知数据检测器和选择器。 第一已知数据检测器通过计算广播信号和第一参考已知数据序列之间的第一相关值来检测广播信号中的第一已知数据序列的位置。 类似地,第二已知数据检测器通过计算广播信号和第二参考已知数据序列之间的第二相关值来检测广播信号中的第二已知数据序列的位置。 选择器选择具有较大相关值的第一和第二已知数据检测器之一检测到的位置信息。