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    CHANNEL EQUALIZER AND METHOD OF PROCESSING BROADCAST SIGNAL IN DTV RECEIVING SYSTEM
    21.
    发明申请
    CHANNEL EQUALIZER AND METHOD OF PROCESSING BROADCAST SIGNAL IN DTV RECEIVING SYSTEM 有权
    频道均衡器和数字电视接收系统中处理广播信号的方法

    公开(公告)号：US20070230580A1

    公开(公告)日：2007-10-04

    申请号：US11674099

    申请日：2007-02-12

    申请人： Byoung Kim ,  In Choi ,  Kyung Kang ,  Kook Kwak ,  Woo Kim

    发明人： Byoung Kim ,  In Choi ,  Kyung Kang ,  Kook Kwak ,  Woo Kim

    IPC分类号： H04N11/04

    CPC分类号： H03M13/2792 ,  H03M13/2906 ,  H03M13/2936 ,  H03M13/6538 ,  H04L1/0041 ,  H04L12/189 ,  H04L25/0212 ,  H04L25/0232 ,  H04L25/03159 ,  H04N5/21 ,  H04N5/38 ,  H04N5/40 ,  H04N5/455 ,  H04N7/12 ,  H04N19/00933 ,  H04N19/89 ,  H04N19/895 ,  H04N21/236 ,  H04N21/23614 ,  H04N21/631

    摘要： A channel equalizer includes a first transformer, an estimator, an average calculator, a second transformer, a coefficient calculator, a compensator, and a third transformer. The first transformer converts normal data into frequency domain data, where a known data sequence is periodically repeated in the normal data. The estimator estimates channel impulse responses (CIR) during known data intervals adjacent to each normal data block. The average calculator calculates an average value of the CIRs. The second transformer converts the average value into frequency domain data. The coefficient calculator calculates equalization coefficients using the average value, and the compensator compensates channel distortion of each normal data block using the coefficients. The third transformer converts the compensated data block into time domain data.

    摘要翻译： 信道均衡器包括第一变压器，估计器，平均计算器，第二变压器，系数计算器，补偿器和第三变压器。 第一变压器将正常数据转换成频域数据，其中在正常数据中周期性地重复已知的数据序列。 估计器在与每个正常数据块相邻的已知数据间隔期间估计信道脉冲响应（CIR）。 平均计算器计算CIR的平均值。 第二变压器将平均值转换为频域数据。 系数计算器使用平均值计算均衡系数，并且补偿器使用系数补偿每个正常数据块的信道失真。 第三变压器将补偿数据块转换为时域数据。

    DTV TRANSMITTING SYSTEM AND METHOD OF PROCESSING DATA IN DTV TRANSMITTING SYSTEM
    22.
    发明申请
    DTV TRANSMITTING SYSTEM AND METHOD OF PROCESSING DATA IN DTV TRANSMITTING SYSTEM 有权
    数字电视发射系统及其在数字电视发射系统中处理数据的方法

    公开(公告)号：US20070211769A1

    公开(公告)日：2007-09-13

    申请号：US11680348

    申请日：2007-02-28

    申请人： Hyoung Lee ,  In Choi ,  Kook Kwak ,  Jin Kim

    发明人： Hyoung Lee ,  In Choi ,  Kook Kwak ,  Jin Kim

    IPC分类号： H04J3/04

    CPC分类号： H04H20/57 ,  H04L1/0059 ,  H04L1/007 ,  H04L1/0071 ,  H04L7/048

    摘要： A DTV transmitting system includes two pre-processors. The first pre-processor codes high-priority enhanced data for forward error correction (FEC) and expands the FEC-coded data. The second pre-processor codes low-priority enhanced data for FEC and expands the FEC-coded low-priority enhanced data. The DTV transmitting system further includes a data formatter generating enhanced data packets including the pre-processed data, a multiplexer multiplexing the enhanced data packets with main data packets, an RS encoder RS-coding the multiplexed data packets, a data interleaver interleaving the RS-coded data packets, and a block processor which codes each block of enhanced data in the interleaved enhanced data packets and bypasses the interleaved main data packets.

    摘要翻译： DTV传输系统包括两个预处理器。 第一个预处理器为前向纠错（FEC）编码高优先级增强数据，并扩展FEC编码数据。 第二个预处理器对FEC的低优先级增强数据进行编码，并扩展了FEC编码的低优先级增强数据。 数字电视发送系统还包括数据格式化器，生成包括预处理数据的增强数据分组，多路复用增强数据分组与主数据分组，RS编码多路复用数据分组的RS编码器，交织RS- 编码数据分组，以及块处理器，其对交织的增强数据分组中的每个增强数据块进行编码，并绕过交织的主数据分组。

    DIGITAL TELEVISION TRANSMITTER/RECEIVER AND METHOD OF PROCESSING DATA IN DIGITAL TELEVISION TRANSMITTER/RECEIVER
    23.
    发明申请
    DIGITAL TELEVISION TRANSMITTER/RECEIVER AND METHOD OF PROCESSING DATA IN DIGITAL TELEVISION TRANSMITTER/RECEIVER 有权
    数字电视发射机/接收机和数字电视发射机/接收机中的数据处理方法

    公开(公告)号：US20070104284A1

    公开(公告)日：2007-05-10

    申请号：US11456760

    申请日：2006-07-11

    申请人： Byoung Gill Kim ,  In Choi ,  Woo Kim ,  Jae Kim ,  Hyoung Lee ,  Jong Kim

    发明人： Byoung Gill Kim ,  In Choi ,  Woo Kim ,  Jae Kim ,  Hyoung Lee ,  Jong Kim

    IPC分类号： H04L23/02

    CPC分类号： H04L27/04 ,  H04L1/006 ,  H04L1/007

    摘要： A digital television (DTV) transmitter and a method of processing known data in the DTV transmitter are disclosed. The method of processing known data in a digital television (DTV) transmitter includes generating a known data sequence, trellis-encoding the known data sequence, the trellis-encoded known data sequence having upper, middle, and lower bits, wherein at least one of the upper, middle, and lower bits has an m-sequence property, and mapping the trellis-encoded known data sequence into one of 2-level, 4-level, and 8-level data sequences, wherein the mapped data sequence has substantially an m-sequence property, wherein a data sequence has an m-sequence property when a peak value among auto-correlation values of the data sequence having a length of N is 1 and all the off-peak auto-correlation values are −1/N.

    摘要翻译： 公开了一种数字电视（DTV）发射机和处理DTV发射机中的已知数据的方法。 处理数字电视（DTV）发射机中的已知数据的方法包括：生成已知数据序列，对已知数据序列进行网格编码，具有上，中，低位的网格编码的已知数据序列，其中至少一个 上位，中位和低位具有m序列属性，并且将网格编码的已知数据序列映射为2级，4级和8级数据序列之一，其中映射的数据序列具有基本上 m序列特性，其中当长度为N的数据序列的自相关值中的峰值为1并且所有非高峰自相关值为-1 / N时，数据序列具有m序列特性 。

    VSB RECEPTION SYSTEM WITH ENHANCED SIGNAL DETECTION FOR PROCESSING SUPPLEMENTAL DATA
    26.
    发明申请
    VSB RECEPTION SYSTEM WITH ENHANCED SIGNAL DETECTION FOR PROCESSING SUPPLEMENTAL DATA 有权
    具有用于处理补充数据的增强信号检测的VSB接收系统

    公开(公告)号：US20070147549A1

    公开(公告)日：2007-06-28

    申请号：US11560816

    申请日：2006-11-16

    申请人： In Choi ,  Young Gu ,  Kyung Kang ,  Kook Kwak

    发明人： In Choi ,  Young Gu ,  Kyung Kang ,  Kook Kwak

    IPC分类号： H03D1/00 ,  H04N5/00

    CPC分类号： H04N21/2383 ,  H03M13/27 ,  H03M13/2936 ,  H04L1/0041 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/007 ,  H04L1/0071 ,  H04L25/03057 ,  H04L25/061 ,  H04L25/062 ,  H04L27/04 ,  H04L27/06 ,  H04L2025/03382 ,  H04N5/211 ,  H04N5/4401 ,  H04N7/52 ,  H04N21/235 ,  H04N21/435 ,  H04N21/4382

    摘要： A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy VSB receiver for processing the data received from the VSB transmission system in a reverse order of the VSB transmission system by using the sequence, and a demultiplexer for demultiplexing the data from the modified legacy VSB receiver into the MPEG data and the supplemental data. The VSB reception system also includes a supplemental data processor for processing the supplemental data segment from the demultiplexer in a reverse order of the transmission system, to obtain the supplemental data, thereby carrying out the slicer prediction, decoding, and symbol decision more accurately by using the predefined sequence, to improve a performance.

    摘要翻译： VSB接收系统包括用于对与补充数据相对应的符号进行解码的序列发生器，并且在VSB传输系统中生成包括在补充数据中的预定序列。 该接收系统还包括经修改的传统VSB接收机，用于通过使用该序列以VSB传输系统的相反顺序处理从VSB传输系统接收的数据;以及解复用器，用于将经修改的传统VSB接收机的数据解复用为MPEG 数据和补充数据。 VSB接收系统还包括补充数据处理器，用于按照传输系统的相反顺序从解复用器处理补充数据段，以获得补充数据，从而更准确地使用限幅器预测，解码和符号决定 预定义的顺序，以提高性能。

    VSB RECEPTION SYSTEM WITH ENHANCED SIGNAL DETECTION FOR PROCESSING SUPPLEMENTAL DATA
    27.
    发明申请
    VSB RECEPTION SYSTEM WITH ENHANCED SIGNAL DETECTION FOR PROCESSING SUPPLEMENTAL DATA 有权
    具有用于处理补充数据的增强信号检测的VSB接收系统

    公开(公告)号：US20070091211A1

    公开(公告)日：2007-04-26

    申请号：US11560807

    申请日：2006-11-16

    申请人： In Choi ,  Young Gu ,  Kyung Kang ,  Kook Kwak

    发明人： In Choi ,  Young Gu ,  Kyung Kang ,  Kook Kwak

    IPC分类号： H04N5/00

    CPC分类号： H04N21/2383 ,  H03M13/27 ,  H03M13/2936 ,  H04L1/0041 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/007 ,  H04L1/0071 ,  H04L25/03057 ,  H04L25/061 ,  H04L25/062 ,  H04L27/04 ,  H04L27/06 ,  H04L2025/03382 ,  H04N5/211 ,  H04N5/4401 ,  H04N7/52 ,  H04N21/235 ,  H04N21/435 ,  H04N21/4382

    摘要： A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy VSB receiver for processing the data received from the VSB transmission system in a reverse order of the VSB transmission system by using the sequence, and a demultiplexer for demultiplexing the data from the modified legacy VSB receiver into the MPEG data and the supplemental data. The VSB reception system also includes a supplemental data processor for processing the supplemental data segment from the demultiplexer in a reverse order of the transmission system, to obtain the supplemental data, thereby carrying, out the slicer predit on, decoding, and symbol decision more accurately by using the predefined sequence, to improve a performance.

    摘要翻译： VSB接收系统包括用于对与补充数据相对应的符号进行解码的序列发生器，并且在VSB传输系统中生成包括在补充数据中的预定序列。 该接收系统还包括经修改的传统VSB接收机，用于通过使用该序列以VSB传输系统的相反顺序处理从VSB传输系统接收的数据;以及解复用器，用于将经修改的传统VSB接收机的数据解复用为MPEG 数据和补充数据。 VSB接收系统还包括补充数据处理器，用于按照传输系统的相反顺序从解复用器处理补充数据段，以获得补充数据，从而更准确地执行限幅器预处理，解码和符号决定 通过使用预定义的顺序来提高性能。

    COMMUNICATION SYSTEM IN DIGITAL TELEVISION
    28.
    发明申请
    COMMUNICATION SYSTEM IN DIGITAL TELEVISION 有权
    数字电视通信系统

    公开(公告)号：US20070040938A1

    公开(公告)日：2007-02-22

    申请号：US11552062

    申请日：2006-10-23

    申请人： In Choi ,  Young Gu ,  Kyung Kang ,  Kook Kwak

    发明人： In Choi ,  Young Gu ,  Kyung Kang ,  Kook Kwak

    IPC分类号： H04N7/04

    CPC分类号： H04N21/4382 ,  H04L27/02 ,  H04N21/2383

    摘要： Disclosed is a digital communication system. A transmission system includes an error correction encoder part carrying out an error correction encoding for additional data inputted through a first path, a multiplexer (MUX) part, a control part, a channel coding part carrying out an RS encoding and a TCM encoding, and a VSB transmission part modulating the channel-coded data by a VSB method and outputting the modulated data. A receiver system includes a tuner part receiving and tuning additional data and ATSC data transmitted through a same channel, a TCM decoder decoding and outputting the ATSC data and additional data, a deinterleaver deinterleaving data outputted from the TCM decoder, a demultiplexer demultiplexing along a first path (ATSC) or a second path(additional data) in accordance with a kind of output data of the deinterleaver, a limiter carrying out a hard decision on data outputted by the first path, an ATSC decoder part including a derandomizer, and an additional error correction decoder part decoding additional-error-encoded data on additional data outputted through the second path.

    摘要翻译： 公开了一种数字通信系统。 传输系统包括对通过第一路径输入的附加数据进行纠错编码的纠错编码器部分，多路复用器（MUX）部分，控制部分，执行RS编码和TCM编码的信道编码部分，以及 VSB传输部分，通过VSB方法对信道编码数据进行调制，并输出调制数据。 接收机系统包括：调谐器部分，接收并调谐附加数据和通过同一信道传输的ATSC数据;解码和输出ATSC数据和附加数据的TCM解码器;从TCM解码器输出的解交织器去交错数据;解复用器，沿第一 路径（ATSC）或第二路径（附加数据），根据解交织器的输出数据的种类，对第一路径输出的数据执行硬判决的限制器，包括脱机器的ATSC解码器部分和附加 纠错解码器部分解码通过第二路径输出的附加数据的附加误差编码数据。