Digital television transmitting/receiving system and method of processing digital broadcast data in digital television transmitting/receiving system
    1.
    发明授权
    Digital television transmitting/receiving system and method of processing digital broadcast data in digital television transmitting/receiving system 有权
    数字电视发射/接收系统和数字电视发射/接收系统中数字广播数据的处理方法

    公开(公告)号:US08675757B2

    公开(公告)日:2014-03-18

    申请号:US11612365

    申请日:2006-12-18

    IPC分类号: H04L23/02

    摘要: A digital television (DTV) transmitting/receiving system and a method of processing digital broadcast data in the DTV transmitting/receiving system are disclosed. The DTV transmitting system includes a randomizer for randomizing enhanced data, an encoder for encoding each bit of the randomized enhanced data at a coding rate of ½ in order to output data symbols, a symbol to byte converter for converting the data symbols to data bytes, a deinterleaver for deinterleaving the data bytes, a Reed-Solomon (RS) encoder for RS-coding enhanced data packets including the deinterleaved data bytes to add RS parity data, a data interleaver for interleaving data of the RS-coded enhanced data packets, a trellis encoder for trellis coding the interleaved data at a coding rate of ⅔, and a transmitting unit for transmitting a digital broadcast signal including the trellis-encoded data.

    摘要翻译: 公开了一种数字电视(DTV)发送/接收系统和数字电视发射/接收系统中的数字广播数据处理方法。 DTV发送系统包括用于随机化增强数据的随机发生器,用于以1/2的编码率对随机增强数据的每个比特进行编码以便输出数据符号的编码器,用于将数据符号转换为数据字节的符号到字节转换器, 用于对数据字节进行解交织的去交织器,用于对包括解交织的数据字节的增强数据包进行RS编码的RS编码以加上RS奇偶校验数据的里德 - 所罗门(RS)编码器,用于交织RS编码的增强数据分组的数据的数据交织器, 网格编码器,用于以2/3的编码速率对交错数据进行格网编码;以及发送单元,用于发送包括网格编码数据的数字广播信号。

    DTV transmitter and method of coding data in DTV transmitter
    9.
    发明授权
    DTV transmitter and method of coding data in DTV transmitter 有权
    DTV发射机和DTV发射机中的数据编码方法

    公开(公告)号:US08194784B2

    公开(公告)日:2012-06-05

    申请号:US12836502

    申请日:2010-07-14

    IPC分类号: H04L27/00

    摘要: A DTV transmitter includes a pre-processor expanding original enhanced data, a data formatter generating enhanced data packets including the expanded enhanced data and inserting known data place holders into the data packets, a multiplexer multiplexing the enhanced data packets with main data packets including main data, and an RS encoder adding systematic RS parity data to each main data packet and adding non-systematic RS parity data holders to each enhanced data packet. It further includes a data interleaver interleaving the RS-coded data packets, a known data generator generating know data symbols, a converter converting the interleaved data packet into symbols, and a symbol processor processing the converted symbols. The symbol processor removes symbols representing the null data, encodes symbols representing the original enhanced data at a rate of N/M, and replaces symbols representing the know data place holders with known data symbols.

    摘要翻译: 数字电视发射机包括预处理器扩展原始增强数据,数据格式化器生成包括扩展增强数据的增强数据分组并将已知数据占位符插入到数据分组中,多路复用多路复用增强数据分组与主数据分组,包括主数据 以及RS编码器,将系统RS奇偶校验数据添加到每个主数据分组,并将非系统RS奇偶校验数据保持器添加到每个增强数据分组。 它还包括交织RS编码的数据分组的数据交织器,产生知识数据符号的已知数据生成器,将交织的数据分组转换为符号的转换器,以及处理转换的符号的符号处理器。 符号处理器去除表示空数据的符号,以N / M的速率对表示原始增强数据的符号进行编码,并用已知数据符号代替表示知识数据占位符的符号。