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公开(公告)号：US07460606B2
公开(公告)日：2008-12-02
申请号：US09968083
申请日：2001-10-01
Applicant: In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
Inventor： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
IPC: H04L23/02
CPC classification number: H04L1/006 , H03M13/23 , H03M13/256 , H03M13/2939 , H04L1/0041 , H04L1/0065 , H04L27/02
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US07346107B2
公开(公告)日：2008-03-18
申请号：US10792199
申请日：2004-03-02
Applicant: In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
Inventor： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
IPC: H04B1/66
CPC classification number: 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
Abstract: 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.
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公开(公告)号：US07317491B2
公开(公告)日：2008-01-08
申请号：US11560807
申请日：2006-11-16
Applicant: In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
Inventor： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
CPC classification number: 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
Abstract: 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.
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74.发明授权VSB reception system with enhanced signal detection or processing supplemental data 有权VSB接收系统具有增强的信号检测或处理补充数据公开(公告)号：US07167212B2
公开(公告)日：2007-01-23
申请号：US11430445
申请日：2006-05-08
Applicant: In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
Inventor： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
CPC classification number: 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
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US07100182B2
公开(公告)日：2006-08-29
申请号：US09991581
申请日：2001-11-16
Applicant: In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
Inventor： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
IPC: H04N7/16
CPC classification number: H04L1/0054 , H04L1/0041 , H04L1/0057 , H04L1/006 , H04L1/0065 , H04L1/0071 , H04L27/02 , H04N7/16 , H04N21/235 , H04N21/2383 , H04N21/4382
Abstract: A digital VSB transmission system that is able to send supplemental data along with MPEG image/sound data is enclosed. The system initially encodes the supplemental data symbol to generate a parity bit, and it multiplexes the parity bit with a predefined sequence and transmits the multiplexed data to a receiver. The system is compatible with the existing ATSC 8T-VSB receivers that are already on the market. It can have advantages over the other types of VSB transmission systems that transmit only the predefined sequence. In addition, the system according the to the present invention results an improved robustness against ghost and noise signals in a channel compared to systems using only the ½ rate convolutional encoding.
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Patent Agency Ranking
公开(公告)号：US07030935B2
公开(公告)日：2006-04-18
申请号：US10791126
申请日：2004-03-01
Applicant: In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
Inventor： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
CPC classification number: 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
Abstract: 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.
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公开(公告)号：US07027103B2
公开(公告)日：2006-04-11
申请号：US11088006
申请日：2005-03-22
Applicant: In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
Inventor： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
CPC classification number: 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
Abstract: 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.
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公开(公告)号：US06967690B2
公开(公告)日：2005-11-22
申请号：US10791457
申请日：2004-03-01
Applicant: In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
Inventor： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
IPC: H04N7/015 , H04L1/00 , H04N5/00 , H04N5/44 , H04N7/24 , H04N7/52 , H04N19/89 , H04N21/235 , H04N21/2383 , H04N21/435 , H04N21/438 , H04N5/213 , H04N5/21 , H04N5/455
CPC classification number: 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
Abstract: 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.
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公开(公告)号：US06947487B2
公开(公告)日：2005-09-20
申请号：US09933353
申请日：2001-08-20
Applicant: In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
Inventor： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
CPC classification number: H04N19/0086 , H04L1/0041 , H04L1/0045 , H04L1/0046 , H04L1/0057 , H04L1/006 , H04L1/0065 , H04L1/0071 , H04N19/46 , H04N19/66 , H04N19/68 , H04N21/2383 , H04N21/4382
Abstract: A VSB communication system comprises a VSB transmission system and a VSB reception system. The VSB transmission system multiplexes a coded MPEG data and a coded supplemental data having a null sequence inserted therein, with required multiplexing information included in a field synchronization signal or in a supplemental data according to a number of the supplemental data packets being transmitted. The VSB reception system detects the required multiplexing information from the field synchronization signal or the supplemental data and decodes the multiplexed data by using the null sequence and the detected multiplexing information, as well as demultiplexes the multiplexed data into the MPEG data and the supplemental data.
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公开(公告)号：US06760077B2
公开(公告)日：2004-07-06
申请号：US09933206
申请日：2001-08-20
Applicant: In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
Inventor： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
IPC: H04N5213
CPC classification number: 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
Abstract: 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.
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