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    • 3. 发明授权
    • Digital broadcast transmission and reception apparatuses and methods thereof
    • 数字广播发送接收装置及其方法
    • US08255776B2
    • 2012-08-28
    • US12111375
    • 2008-04-29
    • Chan-sub Park
    • Chan-sub Park
    • H03M13/00G06F11/00
    • H03M13/1515H03M13/2707H03M13/2966H03M13/635H04L1/0057H04L1/0071H04N21/23611H04N21/2383H04N21/434H04N21/4382
    • A digital broadcast transmission apparatus includes a Reed-Solomon (RS) encoder to perform RS encoding of data to obtain RS-encoded data formatted in data packets each including a predetermined number of bytes; a sync byte inserter to insert sync bytes indicating a start point of one of the data packets in a predetermined location of the RS-encoded data; an interleaver to interleave the RS-encoded data after the sync bytes have been inserted in the RS-encoded data to obtain interleaved data; and a data stuffer to sequentially insert complete packets of the interleaved data each including the predetermined number of bytes in a field, and insert an initial portion of a final packet of the interleaved data beginning in the field in residual bytes of the field that are less than the predetermined number of bytes.
    • 数字广播传输装置包括里德 - 索罗门(RS)编码器,用于执行数据的RS编码,以获得以数据包格式化的RS编码数据,每个包含预定数量的字节; 同步字节插入器,用于将指示所述数据分组之一的起始点的同步字节插入所述RS编码数据的预定位置; 交织器在RS编码数据中插入同步字节之后对RS编码数据进行交织以获得交织数据; 以及数据填充器,以顺序地将包含预定数量字节的交错数据的完整分组插入到字段中,并且将在该字段中开始的交织数据的最终分组的初始部分插入到少于该字段的剩余字节中 比预定的字节数。
    • 10. 发明申请
    • Digital broadcasting transmission/reception capable of improving a receiving performance and a signal processing method thereof
    • 能够提高接收性能的数字广播发送/接收及其信号处理方法
    • US20050013380A1
    • 2005-01-20
    • US10891045
    • 2004-07-15
    • Joon-soo KimDong-hoon LeeJung-won KwakChan-sub Park
    • Joon-soo KimDong-hoon LeeJung-won KwakChan-sub Park
    • H04N7/24H04L7/04H04L27/00
    • H04L7/041H04L1/0065H04L27/06H04L2027/003H04L2027/0055H04N21/2383H04N21/4382
    • Digital broadcasting transmission/reception systems capable of improving the synchronization acquisition and the equalization performance, and signal processing methods thereof. The digital broadcasting transmission/reception systems include a FEC encoder encoding an incoming signal according to a FEC scheme, a sync signal insertion unit inserting into the encoded signal a segment sync signal including modified segment syncs, a pilot insertion unit inserting a pilot signal into the sync-inserted signal, a pulse shaping filter pulse-shaping the pilot-inserted signal with a roll-off factor, and a RF unit transmitting the pulse-shaped signal through a transmission channel band. The modified segment sync includes a predetermined number of sync signals, and an average of correlation values with respect to the predetermined number of the sync signals has an auto-correlation property. The transmission scheme utilizing the modified segment syncs promotes compatibility with the conventional reception system, minimizes hardware complexity, and enhances synchronization acquisition and equalization performance.
    • 能够改善同步采集和均衡性能的数字广播发送/接收系统及其信号处理方法。 数字广播发送/接收系统包括:根据FEC方案对输入信号进行编码的FEC编码器;同步信号插入单元,将编码信号插入到包括修改的段同步的段同步信号;导频插入单元,将导频信号插入到 同步插入信号,具有滚降因子脉冲整形导频插入信号的脉冲整形滤波器,以及RF单元通过传输信道频带传送脉冲信号。 修改的段同步包括预定数量的同步信号,并且相对于预定数量的同步信号的相关值的平均值具有自相关特性。 利用修改的段同步的传输方案提高了与常规接收系统的兼容性,使硬件复杂度最小化,并增强了同步采集和均衡性能。