DTV RECEIVING SYSTEM AND METHOD OF PROCESSING DTV SIGNAL
    127.
    发明申请
    DTV RECEIVING SYSTEM AND METHOD OF PROCESSING DTV SIGNAL 有权
    数字电视接收系统及处理数字电视信号的方法

    公开(公告)号:US20120246541A1

    公开(公告)日:2012-09-27

    申请号:US13490401

    申请日:2012-06-06

    IPC分类号: H03M13/05 G06F11/10

    摘要: A method of processing broadcast data in a broadcast transmitting system includes randomizing mobile service data bytes; generating a Reed-Solomon (RS) frame; dividing the RS frame into RS frame portions; converting data bytes of the RS frame portions into data bits; encoding each converted data bit and outputting data symbols corresponding to the encoded data bits; interleaving the data symbols; converting the interleaved data symbols into data bytes; forming data groups including mobile service data corresponding to the converted data bytes, each of the data groups including known data sequences, signaling information, non-systematic RS parity data place holders and MPEG header data place holders; removing the non-systematic RS parity data place holders in the data groups and replacing the MPEG header data place holders in the data groups with MPEG header data to output mobile service data packets; and randomizing the MPEG header data in the mobile service data packets.

    摘要翻译: 在广播发送系统中处理广播数据的方法包括随机化移动业务数据字节; 产生里德 - 所罗门(RS)帧; 将RS帧划分为RS帧部分; 将所述RS帧部分的数据字节转换成数据位; 对每个转换的数据位进行编码并输出对应于编码数据位的数据符号; 交织数据符号; 将交织的数据符号转换成数据字节; 形成包括对应于转换的数据字节的移动业务数据的数据组,每个数据组包括已知数据序列,信令信息,非系统RS奇偶校验数据占位符和MPEG头数据占位符; 去除数据组中的非系统RS奇偶校验数据占位符,并用MPEG标题数据替换数据组中的MPEG头数据占位符,以输出移动业务数据包; 并在移动业务数据包中随机化MPEG头数据。

    Digital television transmitting system and receiving system and method of processing broadcast data
    129.
    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:US08094750B2

    公开(公告)日:2012-01-10

    申请号:US13011805

    申请日:2011-01-21

    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。

    Digital broadcasting system and method of processing data
    130.
    发明授权
    Digital broadcasting system and method of processing data 有权
    数字广播系统及数据处理方法

    公开(公告)号:US08074147B2

    公开(公告)日:2011-12-06

    申请号:US12062790

    申请日:2008-04-04

    IPC分类号: G06F11/00

    摘要: A digital broadcasting system and a data processing method are disclosed. Herein, additional encoding is performed on mobile service data, which are then transmitted, thereby providing robustness in the processed mobile service data, so that the mobile service data can respond more strongly against fast and frequent channel changes. The data processing method of a digital broadcast transmitting system includes the steps of forming a RS frame by grouping a plurality of mobile service data bytes that is being inputted, and performing error correction encoding in RS frame units, forming a super frame by grouping a plurality of the error correction encoded RS frame, performing row permutation in super frame units, and dividing the super frame back to RS frames, and dividing the RS frame into a plurality of data groups.

    摘要翻译: 公开了数字广播系统和数据处理方法。 这里,对移动业务数据进行附加的编码,然后发送该数据,从而在经处理的移动业务数据中提供鲁棒性,使得移动业务数据可以更快地响应快速和频繁的信道改变。 数字广播发送系统的数据处理方法包括以下步骤:通过对正在输入的多个移动业务数据字节进行分组来形成RS帧,并以RS帧为单位进行纠错编码,通过对多个帧进行分组来形成超帧 的纠错编码RS帧,以超帧单位执行行排列,并将超帧划分回RS帧,并将RS帧划分为多个数据组。