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41. 发明授权

US07921352B2 DTV transmitter and method of coding main and enhanced data in DTV transmitter 有权
标题翻译：数字电视发射机和数字电视发射机主要和增强数据编码方法
公开(公告)号：US07921352B2
公开(公告)日：2011-04-05
申请号：US12834815
申请日：2010-07-12
申请人： In Hwan Choi , Kyung Won Kang , Kook Yeon Kwak , Byoung Gill Kim , Woo Chan Kim , Jae Hyung Kim , Hyoung Gon Lee , Jong Moon Kim
发明人： In Hwan Choi , Kyung Won Kang , Kook Yeon Kwak , Byoung Gill Kim , Woo Chan Kim , Jae Hyung Kim , Hyoung Gon Lee , Jong Moon Kim
IPC分类号： H03M13/00
CPC分类号： H03M13/27 , H03M13/2936 , H03M13/3972 , H04H20/31 , H04H20/95 , H04H60/07 , H04N19/30 , H04N21/23614 , H04N21/2383 , H04N21/4345 , H04N21/4348 , H04N21/4382 , H04N21/8126
摘要： A DTV transmitter includes a pre-processor pre-processing enhanced data, a data formatter generating enhanced data packets including the pre-processed data and inserting known data place holders to the data packets, and a multiplexer multiplexing the enhanced data packets with main data packets. It further includes an RS encoder which RS-codes the multiplexed data packets, and a data interleaves which interleaves the RS-coded data packets. The RS encoder adds systematic RS parity data to each main data packet and adds non-systematic RS parity place holders to each enhanced data packet. The RS encoder adds the RS parity place holders such that the RS parity place holders are placed after the enhanced data within each interleaved enhanced data packet.
摘要翻译：数字电视发射机包括预处理器预处理增强数据，数据格式化器生成包括预处理数据的增强数据分组并将已知数据占位符插入到数据分组，以及复用多路复用增强数据分组与主数据分组。它还包括对多路复用数据分组进行RS编码的RS编码器以及对RS编码的数据分组进行交织的数据交织。 RS编码器将系统RS奇偶校验数据添加到每个主数据分组，并将非系统RS奇偶校验位保持器添加到每个增强数据分组。 RS编码器加上RS奇偶校验位置保持器，使得RS奇偶校验位保持器放置在每个交织的增强数据分组内的增强数据之后。

42. 发明授权

US07876835B2 Channel equalizer and method of processing broadcast signal in DTV receiving system 有权
标题翻译：信道均衡器和DTV接收系统中处理广播信号的方法
公开(公告)号：US07876835B2
公开(公告)日：2011-01-25
申请号：US11674099
申请日：2007-02-12
申请人： Byoung Gill Kim , In Hwan Choi , Kyung Won Kang , Kook Yeon Kwak , Woo Chan Kim
发明人： Byoung Gill Kim , In Hwan Choi , Kyung Won Kang , Kook Yeon Kwak , Woo Chan Kim
IPC分类号： H04N5/44 , H04N5/38 , H04N5/40 , H04N5/455 , H04N5/21 , H04N7/12
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。

43. 发明授权

US07844885B2 DTV transmitter and method of coding main and enhanced data in DTV transmitter 有权
标题翻译：数字电视发射机和数字电视发射机主要和增强数据编码方法
公开(公告)号：US07844885B2
公开(公告)日：2010-11-30
申请号：US12834790
申请日：2010-07-12
申请人： In Hwan Choi , Kyung Won Kang , Kook Yeon Kwak , Byoung Gill Kim , Woo Chan Kim , Jae Hyung Kim , Hyoung Gon Lee , Jong Moon Kim
发明人： In Hwan Choi , Kyung Won Kang , Kook Yeon Kwak , Byoung Gill Kim , Woo Chan Kim , Jae Hyung Kim , Hyoung Gon Lee , Jong Moon Kim
IPC分类号： H03M13/00
CPC分类号： H03M13/27 , H03M13/2936 , H03M13/3972 , H04H20/31 , H04H20/95 , H04H60/07 , H04N19/30 , H04N21/23614 , H04N21/2383 , H04N21/4345 , H04N21/4348 , H04N21/4382 , H04N21/8126
摘要： A DTV transmitter includes a pre-processor pre-processing enhanced data, a data formatter generating enhanced data packets including the pre-processed data and inserting known data place holders to the data packets, and a multiplexer multiplexing the enhanced data packets with main data packets. It further includes an RS encoder which RS-codes the multiplexed data packets, and a data interleaves which interleaves the RS-coded data packets. The RS encoder adds systematic RS parity data to each main data packet and adds non-systematic RS parity place holders to each enhanced data packet. The RS encoder adds the RS parity place holders such that the RS parity place holders are placed after the enhanced data within each interleaved enhanced data packet.
摘要翻译：数字电视发射机包括预处理器预处理增强数据，数据格式化器生成包括预处理数据的增强数据分组并将已知数据占位符插入到数据分组，以及复用多路复用增强数据分组与主数据分组。它还包括对多路复用的数据分组进行RS编码的RS编码器和对RS编码的数据分组进行交织的数据交织。 RS编码器将系统RS奇偶校验数据添加到每个主数据分组，并将非系统RS奇偶校验位保持器添加到每个增强数据分组。 RS编码器加上RS奇偶校验位置保持器，使得RS奇偶校验位保持器放置在每个交织的增强数据分组内的增强数据之后。

44. 发明申请

US20100281345A1 DTV TRANSMITTER AND METHOD OF CODING MAIN AND ENHANCED DATA IN DTV TRANSMITTER 有权
公开(公告)号：US20100281345A1
公开(公告)日：2010-11-04
申请号：US12834790
申请日：2010-07-12
申请人： In Hwan Choi , Kyung Won Kang , Kook Yeon Kwak , Byoung Gill Kim , Woo Chan Kim , Jae Hyung Kim , Hyoung Gon Lee , Jong Moon Kim
发明人： In Hwan Choi , Kyung Won Kang , Kook Yeon Kwak , Byoung Gill Kim , Woo Chan Kim , Jae Hyung Kim , Hyoung Gon Lee , Jong Moon Kim
IPC分类号： H03M13/00
CPC分类号： H03M13/27 , H03M13/2936 , H03M13/3972 , H04H20/31 , H04H20/95 , H04H60/07 , H04N19/30 , H04N21/23614 , H04N21/2383 , H04N21/4345 , H04N21/4348 , H04N21/4382 , H04N21/8126
摘要： A DTV transmitter includes a pre-processor pre-processing enhanced data, a data formatter generating enhanced data packets including the pre-processed data and inserting known data place holders to the data packets, and a multiplexer multiplexing the enhanced data packets with main data packets. It further includes an RS encoder which RS-codes the multiplexed data packets, and a data interleaves which interleaves the RS-coded data packets. The RS encoder adds systematic RS parity data to each main data packet and adds non-systematic RS parity place holders to each enhanced data packet. The RS encoder adds the RS parity place holders such that the RS parity place holders are placed after the enhanced data within each interleaved enhanced data packet.

45. 发明授权

US07796712B2 DTV receiver and method of processing broadcast signal in DTV receiver 有权
标题翻译：数字电视接收机和数字电视接收机广播信号处理方法
公开(公告)号：US07796712B2
公开(公告)日：2010-09-14
申请号：US11615496
申请日：2006-12-22
申请人： In Hwan Choi , Koon Yeon Kwak , Byoung Gill Kim , Woo Chan Kim , Jae Hyung Kim , Hyoung Gon Lee , Jong Moon Kim
发明人： In Hwan Choi , Koon Yeon Kwak , Byoung Gill Kim , Woo Chan Kim , Jae Hyung Kim , Hyoung Gon Lee , Jong Moon Kim
IPC分类号： H04L27/06
CPC分类号： H04L1/0054 , H03M13/27 , H03M13/2936 , H03M13/3972 , H04H20/30 , H04H20/55 , H04H20/95 , H04H40/18 , H04H60/23 , H04L1/0047 , H04L1/0065 , H04L1/007 , H04L25/0224 , H04L25/03286 , H04N5/4401 , H04N5/455 , H04N21/235 , H04N21/2383 , H04N21/435 , H04N21/4382 , H04N21/4425
摘要： A DTV receiver includes a tuner tuning to a channel to receive a broadcast signal, and a demodulator demodulating the broadcast signal. The receiver further includes a first decoder which decodes main and enhanced data included in the demodulated signal by calculating soft decision values for the enhanced data and hard decision values for the main data. The receiver further includes a second decoder for decoding the main and enhanced data for first forward error correction, and a third decoder for decoding the FEC-decoded enhanced data for second forward error correction.
摘要翻译：数字电视接收机包括调谐到频道以接收广播信号的调谐器，以及对广播信号进行解调的解调器。接收机还包括第一解码器，其通过计算用于主数据的增强数据和硬判决值的软判决值来解码包括在解调信号中的主数据和增强数据。接收机还包括用于对用于第一前向纠错的主和增强数据进行解码的第二解码器，以及用于对用于第二前向纠错的FEC解码的增强数据进行解码的第三解码器。

46. 发明授权

US07787559B2 DTV transmitter and method of coding data in DTV transmitter 有权
标题翻译： DTV发射机和DTV发射机中的数据编码方法
公开(公告)号：US07787559B2
公开(公告)日：2010-08-31
申请号：US11611744
申请日：2006-12-15
申请人： Hyoung Gon Lee , In Hwan Choi , Koon Yeon Kwak , Byoung Gill Kim , Jong Moon Kim , Woo Chan Kim , Jae Hyung Kim
发明人： Hyoung Gon Lee , In Hwan Choi , Koon Yeon Kwak , Byoung Gill Kim , Jong Moon Kim , Woo Chan Kim , Jae Hyung Kim
IPC分类号： H04L27/00
CPC分类号： H03M13/256 , H03M13/1515 , H03M13/253 , H03M13/611 , H03M13/6356 , H03M13/6362 , H04H20/30 , H04H20/86 , H04H60/11 , H04L27/02 , H04N21/235 , H04N21/2383 , H04N21/435 , H04N21/4382
摘要： A DTV transmitter includes a pre-processor expanding original enhanced data, a data formatter generating enhanced data packets including the expanded enhanced data and inserting known data place holders into the data packets, a multiplexer multiplexing the enhanced data packets with main data packets including main data, and an RS encoder adding systematic RS parity data to each main data packet and adding non-systematic RS parity data holders to each enhanced data packet. It further includes a data interleaver interleaving the RS-coded data packets, a known data generator generating know data symbols, a converter converting the interleaved data packet into symbols, and a symbol processor processing the converted symbols. The symbol processor removes symbols representing the null data, encodes symbols representing the original enhanced data at a rate of N/M, and replaces symbols representing the know data place holders with known data symbols.
摘要翻译：数字电视发射机包括预处理器扩展原始增强数据，数据格式化器生成包括扩展增强数据的增强数据分组并将已知数据占位符插入到数据分组中，多路复用多路复用增强数据分组与主数据分组，包括主数据以及RS编码器，将系统RS奇偶校验数据添加到每个主数据分组，并将非系统RS奇偶校验数据保持器添加到每个增强数据分组。它还包括交织RS编码的数据分组的数据交织器，产生知识数据符号的已知数据生成器，将交织的数据分组转换为符号的转换器，以及处理转换的符号的符号处理器。符号处理器去除表示空数据的符号，以N / M的速率对表示原始增强数据的符号进行编码，并用已知数据符号代替表示知识数据占位符的符号。

47. 发明授权

US07773700B2 Apparatus for channel equalization and method thereof 有权
标题翻译：信道均衡装置及其方法
公开(公告)号：US07773700B2
公开(公告)日：2010-08-10
申请号：US11178117
申请日：2005-07-08
申请人： Kyung Won Kang , Woo Chan Kim , In Hwan Choi , Byoung Gill Kim , Yong Hak Suh
发明人： Kyung Won Kang , Woo Chan Kim , In Hwan Choi , Byoung Gill Kim , Yong Hak Suh
IPC分类号： H04L27/06 , H03H7/30
CPC分类号： H04L25/022 , H04L25/0212 , H04L25/03159 , H04L2025/03496 , H04L2025/03522 , H04L2025/03617 , H04N5/211 , H04N5/4401
摘要： Channel Equalization of a digital TV is disclosed. In channel equalization for restoring an original signal from a digital TV reception signal having passed through a channel, the present invention includes estimating an impulse response of the channel from a received signal having passed through the channel using conjugate-gradient algorithm, finding an equalizer coefficient in a frequency domain using the estimated impulse response of the channel, outputting a signal equalized by multiplying a signal resulting from transforming the received signal into the frequency domain by the found equalizer coefficient, and predicting to remove an amplified noise of the equalized signal using the conjugate-gradient algorithm in a time domain. Accordingly, the variation of the channel impulse response according to time can be tracked in the dynamic channel having fast channel variation as well as the static channel, whereby equalizing performance can be enhanced.
摘要翻译：数字电视的频道均衡被公开。在用于从已经通过信道的数字TV接收信号恢复原始信号的信道均衡中，本发明包括使用共轭梯度算法从已经通过信道的接收信号估计信道的脉冲响应，找到均衡器系数在使用所述信道的所述估计的脉冲响应的频域中，通过将由所述接收信号变换为频域而得到的信号乘以所述均衡器系数，输出均衡的信号，并且使用所述均衡信号来预测去除所述均衡信号的放大噪声在时域中的共轭梯度算法。因此，可以在具有快速信道变化的动态信道以及静态信道中跟踪根据时间的信道脉冲响应的变化，从而可以提高均衡性能。

48. 发明授权

US07714937B2 Channel equalizer and digital television receiver using the same 有权
标题翻译：信道均衡器和数字电视接收机使用相同
公开(公告)号：US07714937B2
公开(公告)日：2010-05-11
申请号：US11595666
申请日：2006-11-08
申请人： Joon Tae Kim , Sung Ryong Hong , In Hwan Choi , Kyung Won Kang , Jong Woong Shin , Byoung Gill Kim , Woo Chan Kim , Jae Hyoung Kim
发明人： Joon Tae Kim , Sung Ryong Hong , In Hwan Choi , Kyung Won Kang , Jong Woong Shin , Byoung Gill Kim , Woo Chan Kim , Jae Hyoung Kim
IPC分类号： H04N5/21
CPC分类号： H04N5/21 , H04L2025/0349 , H04N5/211
摘要： Disclosed are a channel equalizer and digital television receiver using the same. The equalizer comprises a channel estimator, a channel distortion compensator and noise canceller. The channel estimator estimates an impulse response of a transmission channel from a received signal. The channel distortion compensator transforms and processes the received signal and the estimated impulse response. The noise canceller predicts and eliminates amplified noise generated during equalization.
摘要翻译：公开了使用其的信道均衡器和数字电视接收机。均衡器包括信道估计器，信道失真补偿器和噪声消除器。信道估计器从接收信号估计传输信道的脉冲响应。信道失真补偿器对接收到的信号和估计的脉冲响应进行变换和处理。噪声消除器预测并消除均衡期间产生的放大噪声。

49. 发明授权

US07408983B2 Digital filter 失效
标题翻译：数字滤波器
公开(公告)号：US07408983B2
公开(公告)日：2008-08-05
申请号：US11029508
申请日：2005-01-06
申请人： Woo Chan Kim
发明人： Woo Chan Kim
IPC分类号： H03K5/159
CPC分类号： H03H17/0223 , H03H17/0294 , H03H21/0012
摘要： Disclosed is a digital filter with a combined architecture of a 4-tap real valued filter and a-tap complex valued filter, whereby the filter size is reduced and no output delay is occurred due to the filter operations. According to the present invention, the digital filter is operated either in real valued filter mode or complex valued filter mode according to a mode selection signal, a filter output is obtained within one clock according to an operation selection signal, and an operator performs operations twice within one symbol clock (i.e., a time period) unlike a related art filter in which an operator performs the operation only once for each symbol clock. Therefore, the present invention filter is capable of resolving the filter size problem by substantially reducing the number of multipliers and adders.
摘要翻译：公开了一种具有4抽头实值滤波器和抽头复值滤波器的组合结构的数字滤波器，由此滤波器尺寸减小，并且由于滤波器操作而没有发生输出延迟。根据本发明，根据模式选择信号，数字滤波器以实值滤波器模式或复值滤波器模式运行，根据操作选择信号在一个时钟内获得滤波器输出，并且操作者执行两次操作在一个符号时钟（即，时间段）内，与现有技术滤波器不同，其中操作者对于每个符号时钟仅执行一次操作。因此，本发明的滤波器能够通过大幅减少乘法器和加法器的数量来解决滤波器尺寸问题。

50. 发明授权

US07151573B2 Channel equalizer and digital television receiver using the same 有权
标题翻译：信道均衡器和数字电视接收机使用相同
公开(公告)号：US07151573B2
公开(公告)日：2006-12-19
申请号：US10734413
申请日：2003-12-12
申请人： Joon Tae Kim , Sung Ryong Hong , In Hwan Choi , Kyung Won Kang , Jong Woong Shin , Byoung Gill Kim , Woo Chan Kim , Jae Hyoung Kim
发明人： Joon Tae Kim , Sung Ryong Hong , In Hwan Choi , Kyung Won Kang , Jong Woong Shin , Byoung Gill Kim , Woo Chan Kim , Jae Hyoung Kim
IPC分类号： H04N5/21
CPC分类号： H04N5/21 , H04L2025/0349 , H04N5/211
摘要： Disclosed are a channel equalizer and digital television receiver using the same. The equalizer comprises a channel estimator, a channel distortion compensator and noise canceller. The channel estimator estimates an impulse response of a transmission channel from a received signal. The channel distortion compensator transforms and processes the received signal and the estimated impulse response. The noise canceller predicts and eliminates amplified noise generated during equalization.
摘要翻译：公开了使用其的信道均衡器和数字电视接收机。均衡器包括信道估计器，信道失真补偿器和噪声消除器。信道估计器从接收信号估计传输信道的脉冲响应。信道失真补偿器对接收到的信号和估计的脉冲响应进行变换和处理。噪声消除器预测并消除均衡期间产生的放大噪声。

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