公开(公告)号：US20160029037A1

公开(公告)日：2016-01-28

申请号：US14873666

申请日：2015-10-02

Applicant: LG ELECTRONICS INC.

Inventor： Kyung Won KANG ,  In Hwan CHOI

IPC: H04N19/467 ,  H04L1/00 ,  H04N19/89

CPC classification number: H04N19/467 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0071 ,  H04L25/03012 ,  H04L2025/03382 ,  H04N5/4401 ,  H04N19/30 ,  H04N19/89 ,  H04N21/2383 ,  H04N21/4382

Abstract: A method of processing a digital television (DTV) signal is disclosed. Herein, the DTV signal is generated by performing Reed-Solomon (RS) encoding on additional data, multiplexing the RS-encoded additional data with main data, RS encoding the multiplexed additional and main data, interleaving the RS-encoded additional and main data, trellis encoding the interleaved additional and main data, and transmitting a Radio Frequency (RF) DTV signal including the trellis-encoded additional and main data. The method to process the DTV signal includes receiving the DTV signal including the additional data multiplexed with the main data through an antenna, in which signaling information is periodically inserted in the additional data. The received DTV signal is demodulated including performing channel equalization on the demodulated DTV signal. Trellis decoding is performed on the channel-equalized DTV signal. Further, the additional data from the trellis-decoded DTV signal is extracted including removing dummy data from the extracted additional data.

Abstract translation: 公开了一种处理数字电视（DTV）信号的方法。 这里，通过对附加数据执行Reed-Solomon（RS）编码，将RS编码的附加数据与主数据进行多路复用，对多路复用的附加和主数据进行RS编码，交织RS编码的附加和主数据来生成DTV信号， 网格编码交织的附加和主数据，以及发送包括网格编码的附加和主数据的射频（RF）DTV信号。 处理DTV信号的方法包括通过天线接收包括与主数据多路复用的附加数据的DTV信号，其中信令信息被周期地插入到附加数据中。 所接收的DTV信号被解调，包括在解调的DTV信号上执行信道均衡。 在信道均衡的DTV信号上进行网格解码。 此外，提取来自网格解码的DTV信号的附加数据，包括从提取的附加数据中去除伪数据。

公开(公告)号：US20130294528A1

公开(公告)日：2013-11-07

申请号：US13938700

申请日：2013-07-10

Applicant: LG ELECTRONICS INC.

Inventor： Byoung Gill KIM ,  In Hwan CHOI ,  Kyung Won KANG ,  Kook Yeon KWAK ,  Woo Chan KIM

IPC: H04N7/26

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140233657A1

公开(公告)日：2014-08-21

申请号：US14260017

申请日：2014-04-23

Applicant: LG ELECTRONICS INC.

Inventor： In Hwan CHOI ,  Young Mo GU ,  Kyung Won KANG ,  Kook Yeon KWAK

IPC: H04N19/66 ,  H04N19/68 ,  H04L1/00 ,  H04N19/46

CPC classification number: H04L1/0046 ,  H04L1/0041 ,  H04L1/0045 ,  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.

Abstract translation: 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。

公开(公告)号：US20140254692A1

公开(公告)日：2014-09-11

申请号：US14282711

申请日：2014-05-20

Applicant: LG ELECTRONICS INC.

Inventor： Kyung Won KANG ,  In Hwan CHOI

IPC: H04N19/00

CPC classification number: H04N19/467 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0071 ,  H04L25/03012 ,  H04L2025/03382 ,  H04N5/4401 ,  H04N7/26372 ,  H04N19/30 ,  H04N19/89 ,  H04N21/2383 ,  H04N21/4382

Abstract: A method of processing a digital television (DTV) signal is disclosed. Herein, the DTV signal is generated by performing Reed-Solomon (RS) encoding on additional data, multiplexing the RS-encoded additional data with main data, RS encoding the multiplexed additional and main data, interleaving the RS-encoded additional and main data, trellis encoding the interleaved additional and main data, and transmitting a Radio Frequency (RF) DTV signal including the trellis-encoded additional and main data. The method to process the DTV signal includes receiving the DTV signal including the additional data multiplexed with the main data through an antenna, in which signaling information is periodically inserted in the additional data. The received DTV signal is demodulated including performing channel equalization on the demodulated DTV signal. Trellis decoding is performed on the channel-equalized DTV signal. Further, the additional data from the trellis-decoded DTV signal is extracted including removing dummy data from the extracted additional data.

Abstract translation: 公开了一种处理数字电视（DTV）信号的方法。 这里，通过对附加数据执行Reed-Solomon（RS）编码，将RS编码的附加数据与主数据进行多路复用，对多路复用的附加和主数据进行RS编码，交织RS编码的附加和主数据来生成DTV信号， 网格编码交织的附加和主数据，以及发送包括网格编码的附加和主数据的射频（RF）DTV信号。 处理DTV信号的方法包括通过天线接收包括与主数据多路复用的附加数据的DTV信号，其中信令信息被周期地插入到附加数据中。 所接收的DTV信号被解调，包括在解调的DTV信号上执行信道均衡。 在信道均衡的DTV信号上进行网格解码。 此外，提取来自网格解码的DTV信号的附加数据，包括从提取的附加数据中去除伪数据。

公开(公告)号：US20130107972A1

公开(公告)日：2013-05-02

申请号：US13718738

申请日：2012-12-18

Applicant: LG ELECTRONICS INC.

Inventor： Byoung Gill KIM ,  In Hwan CHOI ,  Kyung Won KANG ,  Kook Yeon KWAK ,  Woo Chan KIM

IPC: H04N7/26

CPC classification number: 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

Abstract: A method of processing broadcast data in a transmitting system includes randomizing enhanced data; Reed-Solomon (RS) encoding and Cyclic Redundancy Check encoding the randomized enhanced data to build an RS frame; encoding the enhanced data in the built RS frame at a coding rate of at least ½ or ¼; first interleaving the encoded enhanced data; deinterleaving the first interleaved enhanced data; first multiplexing enhanced data packets including the deinterleaved enhanced data with main data packets including main data; randomizing the main data in the multiplexed enhanced and main data packets; second interleaving the enhanced data in the multiplexed enhanced and main data packets and the randomized main data to output a data group having the interleaved enhanced data and the interleaved main data; trellis encoding data in the data group in a trellis encoding unit; and second multiplexing the trellis-encoded data with field synchronization data and segment synchronization data.

Abstract translation: 在发送系统中处理广播数据的方法包括随机化增强数据; Reed-Solomon（RS）编码和循环冗余校验编码随机增强数据构建RS帧; 以至少½或¼的编码速率对建立的RS帧中的增强数据进行编码; 首先交织编码的增强数据; 解交织第一交错增强数据; 首先将包括主数据包在内的包括解交织的增强数据的增强数据包复用在一起，包括主数据; 随机化多路复用增强主数据包中的主数据; 在多路复用的增强和主数据分组和随机化主数据中对增强数据进行第二交织，以输出具有交织增强数据和交错主数据的数据组; 网格编码单元中的数据组中的网格编码数据; 并且利用字段同步数据和段同步数据对网格编码数据进行第二次复用。

公开(公告)号：US20160020788A1

公开(公告)日：2016-01-21

申请号：US14864490

申请日：2015-09-24

Applicant: LG ELECTRONICS INC.

Inventor： Byoung Gill KIM ,  In Hwan CHOI ,  Kyung Won KANG ,  Kook Yeon KWAK ,  Woo Chan KIM

IPC: H03M13/27 ,  H04L1/00 ,  H04L12/18 ,  H03M13/29

CPC classification number: 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 ,  H04N19/89 ,  H04N19/895 ,  H04N21/236 ,  H04N21/23614 ,  H04N21/631

Abstract: 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.

公开(公告)号：US20150131745A1

公开(公告)日：2015-05-14

申请号：US14597065

申请日：2015-01-14

Applicant: LG ELECTRONICS INC.

Inventor： In Hwan CHOI ,  Kyung Won KANG ,  Kook Yeon KWAK ,  Young Jin HONG ,  Sung Ryong HONG

IPC: H04N19/66 ,  H04N21/2383 ,  H04N21/236 ,  H04N19/46

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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140226731A1

公开(公告)日：2014-08-14

申请号：US14254606

申请日：2014-04-16

Applicant: LG ELECTRONICS INC.

Inventor： In Hwan CHOI ,  Young Mo GU ,  Kyung Won KANG ,  Kook Yeon KWAK

IPC: H04N19/88 ,  H04L29/06

CPC classification number: 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

Abstract: A digital television system performing modulation/demodulation by VSB (vestigial side band) is provided. The invention includes a VSB transmitter including an additional error correction encoder designed such that a signal mapping of a TCM encoder is considered, a multiplexer (MUX), a TCM encoder operating in correspondence with state transition processes of the additional error correction encoder, and a signal transmission part including an RF converter. The invention further includes a VSB receiver including 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.

Abstract translation: 提供由VSB（残留边带）进行调制/解调的数字电视系统。 本发明包括一个VSB发射机，包括一个设计成使得TCM编码器的信号映射被考虑的附加纠错编码器，一个多路复用器（MUX），一个与附加纠错编码器的状态转换过程相对应的TCM编码器，以及一个 信号传输部分包括RF转换器。 本发明还包括一个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。