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    • 2. 发明授权
    • Digital television transmitter and method of coding data in digital television transmitter
    • 数字电视发射机和数字电视发射机数据编码方法
    • US08472544B2
    • 2013-06-25
    • US12860072
    • 2010-08-20
    • In Hwan ChoiKyung Won KangKook Yeon KwakYoung Jin HongSung Ryong Hong
    • In Hwan ChoiKyung Won KangKook Yeon KwakYoung Jin HongSung Ryong Hong
    • H04L5/12H04L23/02
    • H04B1/68H03M13/2732H03M13/2936H04L25/03273H04L2025/03382
    • A digital television (DTV) transmitter and a method of coding data in the DTV transmitter method are disclosed. A pre-processes enhanced data by coding the enhanced data for forward error correction (FEC) and expanding the FEC-coded enhanced data. A data formatter generates enhanced data packets including the pre-processed enhanced data and inserting known data to at least one of the enhanced data packets. A first multiplexer multiplexes main data packets with the enhanced data packets, and a data randomizer randomizes the multiplexed data packets. A Reed-Solomon (RS) encoder RS-codes the randomized data packets by adding first parity data, and a data interleaver interleaves the RS-coded data packets. A trellis encoder trellis-encodes the interleaved data packets, wherein the trellis encoder may be initialized when a known data sequence is inputted thereto.
    • 公开了一种数字电视(DTV)发射机和DTV发射机方法中的数据编码方法。 通过对用于前向纠错(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。 数据格式化器生成增强的数据分组,包括预处理的增强数据,并将已知数据插入到增强数据分组中的至少一个。 第一复用器将主数据分组与增强数据分组复用,并且数据随机化器将复用的数据分组随机化。 里德 - 所罗门(RS)编码器通过添加第一奇偶校验数据RS编码随机数据分组,并且数据交织器交织RS编码的数据分组。 网格编码器对交织的数据分组进行网格编码,其中当已知的数据序列被输入时,网格编码器可被初始化。
    • 3. 发明授权
    • Digital television transmitter and method of coding data in digital television transmitter
    • 数字电视发射机和数字电视发射机数据编码方法
    • US08054385B2
    • 2011-11-08
    • US12883131
    • 2010-09-15
    • In Hwan ChoiKyung Won KangKook Yeon KwakYoung Jin HongSung Ryong Hong
    • In Hwan ChoiKyung Won KangKook Yeon KwakYoung Jin HongSung Ryong Hong
    • H04N5/44H04N5/455
    • H04L1/0041H03M13/27H03M13/2936H03M13/356H03M13/41H04L1/0054H04L1/0057H04L1/0065H04L1/007H04L27/02
    • A pre-processor pre-processes enhanced data packets by coding the enhanced data packets for forward error correction (FEC) and expanding the FEC-coded data packets. A data formatter adds first null data into first place holders within each pre-processed enhanced data packet. A first multiplexer multiplexes the main data packets with the enhanced data packets having the first null data. A holder inserter inserts second null data into second place holders within an enhanced data packet outputted from the first multiplexer. A data interleaver replaces the second null data with parity data. A data generator generates at least one known data sequence. A symbol processor replaces the first null data included in an output of the data interleaver with the known data sequence(s). A non-systematic RS encoder generates the parity data by performing non-systematic RS-coding on an output of the symbol processor, and provides the parity data to the data interleaver.
    • 预处理器通过对用于前向纠错(FEC)的增强数据分组进行编码并扩展FEC编码的数据分组来预处理增强的数据分组。 数据格式化程序将第一个空数据添加到每个预处理增强数据包中的第一位置。 第一复用器将主数据分组与具有第一空数据的增强数据分组复用。 保持器插入器将第二空数据插入到从第一多路复用器输出的增强数据分组内的第二位置。 数据交织器用奇偶校验数据替换第二空数据。 数据发生器产生至少一个已知的数据序列。 符号处理器用包括在已知数据序列中的数据交织器输出中的第一个空数据替代。 非系统RS编码器通过对符号处理器的输出执行非系统RS编码来生成奇偶校验数据,并将奇偶校验数据提供给数据交织器。