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公开(公告)号：US08428150B2
公开(公告)日：2013-04-23
申请号：US11932521
申请日：2007-10-31
申请人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
发明人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
CPC分类号： H04N19/88 , H04L1/0041 , H04L1/0045 , H04L1/006 , H04L1/0071 , H04L27/02 , H04L65/607 , H04N5/4401 , H04N21/235 , H04N21/23614 , H04N21/2383 , H04N21/4348 , H04N21/435 , H04N21/4382
摘要： Disclosed is a digital television system carrying out modulation/demodulation by VSB (vestigial side band). A VSB transmitter includes an additional error correction encoder designed in a manner that a signal mapping of a TCM encoder is considered, a multiplexer (MUX), a TCM encoder operating in a manner corresponding to state transition processes of the additional error correction encoder, and a signal transmission part including an RF converter. And, A VSB receiver includes a signal receiver part receiving a signal transmitted from the transmitter, a TCM decoder, a signal processing part including a derandomizer, and an additional error correction decoder part.
摘要翻译： 公开了通过VSB（残留边带）进行调制/解调的数字电视系统。 VSB发射机包括以考虑TCM编码器的信号映射的方式设计的附加纠错编码器，多路复用器（MUX），以与附加纠错编码器的状态转换处理相对应的方式操作的TCM编码器，以及 包括RF转换器的信号传输部分。 并且，VSB接收机包括接收从发射机发送的信号的信号接收机部分，TCM解码器，包括去扩频器的信号处理部分和附加纠错解码器部分。
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公开(公告)号：US08130833B2
公开(公告)日：2012-03-06
申请号：US12556211
申请日：2009-09-09
申请人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
发明人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
IPC分类号： H04B1/66
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。
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公开(公告)号：US07949055B2
公开(公告)日：2011-05-24
申请号：US11450570
申请日：2006-06-08
申请人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
发明人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
IPC分类号： H04N7/18
CPC分类号： H03M13/253 , H03M13/1515 , H03M13/256 , H03M13/2936 , H03M13/6538 , H04N21/23611 , H04N21/23614 , H04N21/2383 , H04N21/4348
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。
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公开(公告)号：US20110007822A1
公开(公告)日：2011-01-13
申请号：US12856433
申请日：2010-08-13
申请人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
发明人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
IPC分类号： H04N7/26
CPC分类号： H04L1/0046 , H04L1/0041 , H04L1/0045 , H04L1/0057 , H04L1/006 , H04L1/0065 , H04L1/0071 , H04N19/46 , H04N19/66 , H04N19/68 , H04N21/2383 , H04N21/4382
摘要： 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.
摘要翻译： VSB通信系统包括VSB传输系统和VSB接收系统。 VSB传输系统根据被发送的补充数据分组的数量，将包含在字段同步信号中的所需复用信息或补充数据中的编码MPEG数据和其中插入有空序列的编码补充数据复用。 VSB接收系统从场同步信号或补充数据检测所需的复用信息，并通过使用零序列和检测到的复用信息对多路复用数据进行解码，并将复用的数据解复用为MPEG数据和补充数据。
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5.发明授权公开(公告)号：US07860502B2
公开(公告)日：2010-12-28
申请号：US11636456
申请日：2006-12-11
申请人： Min-Goo Kim , Young-Mo Gu , Sung-Soo Kim , Byung-Sik Kim
发明人： Min-Goo Kim , Young-Mo Gu , Sung-Soo Kim , Byung-Sik Kim
CPC分类号： H04W36/30 , H04B1/7105 , H04B2201/70702
摘要： Provided is a hard handover method in a wireless communication system. The hard handover method includes checking a signal-to-noise ratio (SNR) of a signal received from each of at least one neighboring base station (BS) while in communication with a serving BS, and canceling interference if the SNR of the signal received from each of the at least one neighboring BSs satisfies a select condition; sending a handover request to the serving BS, if a difference between a SNR of the interference-canceled signal and a SNR of the interference signal reaches a handover request threshold; and upon receipt of a handover approval from the serving BS, releasing a communication channel to the serving BS, and connecting a call to a BS that provides an interference signal whose SNR has reached the threshold.
摘要翻译： 提供了一种在无线通信系统中的硬切换方法。 硬切换方法包括在与服务BS进行通信时检查从至少一个相邻基站（BS）中的每一个接收的信号的信噪比（SNR），以及如果接收到的信号的SNR被消除则消除干扰 从所述至少一个相邻BS中的每一个满足选择条件; 如果所述干扰消除信号的SNR与所述干扰信号的SNR之间的差达到切换请求阈值，则向所述服务BS发送切换请求; 并且在从服务BS接收到切换批准时，向服务BS发布通信信道，并且将呼叫连接到提供SNR达到阈值的干扰信号的BS。
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公开(公告)号：US07742530B2
公开(公告)日：2010-06-22
申请号：US11050298
申请日：2005-02-02
申请人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
发明人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
CPC分类号： H04N19/88 , H04L1/0041 , H04L1/0045 , H04L1/006 , H04L1/0071 , H04L27/02 , H04L65/607 , H04N5/4401 , H04N21/235 , H04N21/23614 , H04N21/2383 , H04N21/4348 , H04N21/435 , H04N21/4382
摘要： Disclosed is a digital television system carrying out modulation/demodulation by VSB(vestigial side band). A VSB transmitter includes an additional error correction encoder designed in a manner that a signal mapping of a TCM encoder is considered, a multiplexer(MUX), a TCM encoder operating in a manner corresponding to state transition processes of the additional error correction encoder, and a signal transmission part including an RF converter. And, A VSB receiver includes a signal receiver part receiving a signal transmitted from the transmitter, a TCM decoder, a signal processing part including a derandomizer, and an additional error correction decoder part.
摘要翻译： 公开了通过VSB（残留边带）进行调制/解调的数字电视系统。 VSB发射机包括以考虑TCM编码器的信号映射的方式设计的附加纠错编码器，多路复用器（MUX），以与附加纠错编码器的状态转换处理相对应的方式工作的TCM编码器，以及 包括RF转换器的信号传输部分。 并且，VSB接收机包括接收从发射机发送的信号的信号接收机部分，TCM解码器，包括去扩频器的信号处理部分和附加纠错解码器部分。
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公开(公告)号：US07712124B2
公开(公告)日：2010-05-04
申请号：US10971278
申请日：2005-01-31
申请人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
发明人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
CPC分类号： 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
摘要： 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：US07706449B2
公开(公告)日：2010-04-27
申请号：US10897517
申请日：2004-07-23
申请人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
发明人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
CPC分类号： H04N19/88 , H04L1/0041 , H04L1/0045 , H04L1/006 , H04L1/0071 , H04L27/02 , H04L65/607 , H04N5/4401 , H04N21/235 , H04N21/23614 , H04N21/2383 , H04N21/4348 , H04N21/435 , H04N21/4382
摘要： Disclosed is a digital television system carrying out modulation/demodulation by VSB (vestigial side band). A VSB transmitter includes an additional error correction encoder designed in a manner that a signal mapping of a TCM encoder is considered, a multiplexer (MUX), a TCM encoder operating in a manner corresponding to state transition processes of the additional error correction encoder, and a signal transmission part including an RF converter. And, A VSB receiver includes a signal receiver part receiving a signal transmitted from the transmitter, a TCM decoder, a signal processing part including a derandomizer, and an additional error correction decoder part.
摘要翻译： 公开了通过VSB（残留边带）进行调制/解调的数字电视系统。 VSB发射机包括以考虑TCM编码器的信号映射的方式设计的附加纠错编码器，多路复用器（MUX），以与附加纠错编码器的状态转换处理相对应的方式工作的TCM编码器，以及 包括RF转换器的信号传输部分。 并且，VSB接收机包括接收从发射机发送的信号的信号接收机部分，TCM解码器，包括去扩频器的信号处理部分和附加纠错解码器部分。
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公开(公告)号：US20100037106A1
公开(公告)日：2010-02-11
申请号：US12556233
申请日：2009-09-09
申请人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
发明人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
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.
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公开(公告)号：US20100007785A1
公开(公告)日：2010-01-14
申请号：US12564001
申请日：2009-09-21
申请人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
发明人： In Hwan Choi , Young Mo Gu , Kyung Won Kang , Kook Yeon Kwak
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.
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