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    VSB transmission system for processing supplemental transmission data
    41.
    发明申请
    VSB transmission system for processing supplemental transmission data 有权
    VSB传输系统用于处理补充传输数据

    公开(公告)号：US20050089095A1

    公开(公告)日：2005-04-28

    申请号：US10977932

    申请日：2004-10-28

    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： H04N7/015 ,  H04L1/00 ,  H04N7/24 ,  H04N7/52 ,  H04N7/12

    CPC分类号： H04N21/2383 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0071 ,  H04N7/52 ,  H04N21/23614 ,  H04N21/2365 ,  H04N21/4347 ,  H04N21/4348 ,  H04N21/4382

    摘要： A VSB communication system or transmitter for processing supplemental data packets with MPEG-II data packets includes a VSB supplemental data processor and a VSB transmission system. The VSB supplemental data processor includes a Reed-Solomon coder for coding the supplemental data to be transmitted, a null sequence inserter for inserting a null sequence to an interleaved supplemental data for generating a predefined sequence, a header inserter for inserting an MPEG header to the supplemental data having the null sequence inserted therein, a multiplexer for multiplexing an MPEG data coded with the supplemental data having the MPEG header added thereto in a preset multiplexing ratio and units. The output of the multiplexer is provided to an 8T-VSB transmission system for modulating a data field from the multiplexer and transmitting the modulated data field to a VSB reception system.

    摘要翻译： 用于处理具有MPEG-II数据分组的补充数据分组的VSB通信系统或发射机包括VSB补充数据处理器和VSB传输系统。 VSB补充数据处理器包括用于对要发送的补充数据进行编码的里德 - 所罗门编码器，用于将空序列插入到用于产生预定义序列的交织补充数据的空序列插入器，用于将MPEG头部插入 具有插入其中的空序列的补充数据，多路复用器，用于以预设的复用比率和单位复用以附加的MPEG标题的补充数据编码的MPEG数据。 多路复用器的输出被提供给用于调制来自多路复用器的数据字段的8T-VSB传输系统，并将调制的数据字段发送到VSB接收系统。

    VSB transmission system
    42.
    发明申请
    VSB transmission system 有权
    VSB传输系统

    公开(公告)号：US20050078760A1

    公开(公告)日：2005-04-14

    申请号：US10898465

    申请日：2004-07-23

    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： H04N7/015 ,  H04L1/00 ,  H04L27/02 ,  H04L5/12

    CPC分类号： H04L1/006 ,  H03M13/23 ,  H03M13/256 ,  H03M13/2939 ,  H04L1/0041 ,  H04L1/0065 ,  H04L27/02

    摘要： A vestigial sideband (VSB) modulation transmission system and a method for encoding an input signal in the system are disclosed. According to the present invention, the VSB transmission system includes a convolutional encoder for encoding an input signal, a trellis-coded modulation (TCM) encoder for encoding the convolutionally encoded signal, and a signal mapper mapping the trellis-coded signal to generate a corresponding output signal. Different types of the convolutional encoders are explored, and the experimental results showing the performances of the VSB systems incorporating each type -of encoders. reveals that a reliable data transmission can be achieved even at a lower input signal to noise -ratio when-.a convolutional encoder is used as an error-correcting encoder in a VSB system.

    摘要翻译： 公开了一种残留边带（VSB）调制传输系统和系统中的输入信号编码方法。 根据本发明，VSB传输系统包括用于编码输入信号的卷积编码器，用于对卷积编码信号进行编码的网格编码调制（TCM）编码器，以及映射网格编码信号以生成对应的 输出信号。 探讨了不同类型的卷积编码器，实验结果显示了包含各种编码器的VSB系统的性能。 可以看出，即使在较低的输入信号与噪声之间也可以实现可靠的数据传输，当卷积编码器用作VSB系统中的纠错编码器时。

    CHANNEL EQUALIZER AND METHOD OF PROCESSING BROADCAST SIGNAL IN RECEIVING SYSTEM
    43.
    发明申请
    CHANNEL EQUALIZER AND METHOD OF PROCESSING BROADCAST SIGNAL IN RECEIVING SYSTEM 有权
    信道均衡器和接收系统中广播信号的处理方法

    公开(公告)号：US20070206708A1

    公开(公告)日：2007-09-06

    申请号：US11681554

    申请日：2007-03-02

    申请人： Byoung Kim ,  In Choi ,  Kook Kwak

    发明人： Byoung Kim ,  In Choi ,  Kook Kwak

    IPC分类号： H04L27/06 ,  H04B1/10

    CPC分类号： H04L25/022 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0065 ,  H04L1/007 ,  H04L1/0071 ,  H04L25/03159 ,  H04L2001/0093 ,  H04L2025/03522 ,  H04N7/163 ,  H04N21/235 ,  H04N21/2383 ,  H04N21/4345 ,  H04N21/435 ,  H04N21/4382 ,  H04N21/4623

    摘要： A channel equalizer includes an overlap unit, an estimator, a calculator, a compensator, and a save unit. The overlap unit overlaps a group of data packets in a broadcast signal. The group data packets include a head, a body, and a tail, and a known data sequence is periodically included in the body. The estimator estimates a CIR of each data region the body using the known data sequence, and it further estimates CIRs of data regions in the head or tail using the CIRs obtained for the data regions in the body. The calculator calculates equalization coefficients based on the CIRs estimated by the estimator, and the compensator compensates channel distortion of the overlapped data using the equalization coefficients. The save unit saves the compensated data.

    摘要翻译： 信道均衡器包括重叠单元，估计器，计算器，补偿器和保存单元。 重叠单元与广播信号中的一组数据分组重叠。 组数据分组包括头，身体和尾巴，并且已知的数据序列被周期地包括在体内。 估计器使用已知数据序列估计身体的每个数据区域的CIR，并且还使用为身体中的数据区域获得的CIR来估计头部或尾部中的数据区域的CIR。 计算器基于由估计器估计的CIR来计算均衡系数，并且补偿器使用均衡系数来补偿重叠数据的信道失真。 保存单元保存补偿数据。

    DTV TRANSMITTING SYSTEM AND METHOD OF PROCESSING DATA IN DTV TRANSMITTING SYSTEM
    44.
    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。

    VSB TRANSMISSION SYSTEM
    46.
    发明申请
    VSB TRANSMISSION SYSTEM 有权
    VSB传动系统

    公开(公告)号：US20070248187A1

    公开(公告)日：2007-10-25

    申请号：US11767411

    申请日：2007-06-22

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

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

    IPC分类号： H03C1/52

    CPC分类号： H04L1/006 ,  H03M13/23 ,  H03M13/256 ,  H03M13/2939 ,  H04L1/0041 ,  H04L1/0065 ,  H04L27/02

    摘要： A vestigial sideband (VSB) modulation transmission system and a method for encoding an input signal in the system are disclosed. According to the present invention, the VSB transmission system includes a convolutional encoder for encoding an input signal, a trellis-coded modulation (TCM) encoder for encoding the convolutionally encoded signal, and a signal mapper mapping the trellis-coded signal to generate a corresponding output signal. Different types of the convolutional encoders are explored, and the experimental results showing the performances of the VSB systems incorporating each type of encoders reveals that a reliable data transmission can be achieved even at a lower input signal to noise ratio when a convolutional encoder is used as an error-correcting encoder in a VSB system.

    摘要翻译： 公开了一种残留边带（VSB）调制传输系统和系统中的输入信号编码方法。 根据本发明，VSB传输系统包括用于编码输入信号的卷积编码器，用于对卷积编码信号进行编码的网格编码调制（TCM）编码器，以及映射网格编码信号以生成对应的 输出信号。 探索了不同类型的卷积编码器，并且显示了包含各种类型的编码器的VSB系统的性能的实验结果表明，即使使用卷积编码器作为较低的输入信噪比，也可以实现可靠的数据传输 VSB系统中的纠错编码器。

    DIGITAL TELEVISION TRANSMITTER/RECEIVER AND METHOD OF PROCESSING DATA IN DIGITAL TELEVISION TRANSMITTER/RECEIVER
    47.
    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：US20070081595A1

    公开(公告)日：2007-04-12

    申请号：US11428317

    申请日：2006-06-30

    申请人： In Hwan Choi ,  Kyung Kang ,  Kook Kwak ,  Young Hong ,  Sung Hong

    发明人： In Hwan Choi ,  Kyung Kang ,  Kook Kwak ,  Young Hong ,  Sung Hong

    IPC分类号： H04N7/12 ,  H04L23/02

    CPC分类号： H04N19/66 ,  H04B1/68 ,  H04N19/46 ,  H04N21/23614 ,  H04N21/2383 ,  H04N21/262 ,  H04N21/4348 ,  H04N21/4382 ,  H04N21/6547

    摘要： A digital television (DTV) transmitter and a method of coding data in the DTV transmitter method are disclosed. A pre-processor pre-processes the enhanced data by coding the enhanced data for forward error correction (FEC) and expanding the FEC-coded enhanced data. A data formatter generates one or more groups of enhanced data packets, each enhanced data packet including the pre-processed enhanced data. And, a packet multiplexer generates at least one burst of enhanced data by multiplexing the one or more groups of enhanced data packets. Herein, each burst of enhanced data includes at least one group of enhanced data packets. The DTV transmitter may further include a scheduler which generates first and second control signals to control operations of the data formatter and the packet multiplexer, respectively.

    摘要翻译： 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。 预处理器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。 数据格式化器生成一组或多组增强数据分组，每个增强数据分组包括预处理的增强数据。 并且，分组多路复用器通过复用一组或多组增强数据分组来产生增强数据的至少一个突发。 这里，增强数据的每个突发包括至少一组增强数据分组。 DTV发射机还可以包括调度器，其分别产生第一和第二控制信号以控制数据格式化器和分组多路复用器的操作。

    DIGITAL TELEVISION TRANSMITTER AND METHOD OF CODING DATA IN DIGITAL TELEVISION TRANSMITTER
    48.
    发明申请
    DIGITAL TELEVISION TRANSMITTER AND METHOD OF CODING DATA IN DIGITAL TELEVISION TRANSMITTER 有权
    数字电视发射机和数字电视发射机数据编码方法

    公开(公告)号：US20070076829A1

    公开(公告)日：2007-04-05

    申请号：US11428323

    申请日：2006-06-30

    申请人： In Hwan Choi ,  Kyung Kang ,  Kook Kwak ,  Young Hong ,  Sung Hong

    发明人： In Hwan Choi ,  Kyung Kang ,  Kook Kwak ,  Young Hong ,  Sung Hong

    IPC分类号： H04B1/66 ,  H03D1/04

    CPC分类号： H04L1/0041 ,  H03M13/27 ,  H03M13/2936 ,  H03M13/356 ,  H03M13/41 ,  H04L1/0054 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/007 ,  H04L27/02

    摘要： 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.

    摘要翻译： 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。