公开(公告)号：US09736508B2

公开(公告)日：2017-08-15

申请号：US14229548

申请日：2014-03-28

Applicant: LG ELECTRONICS INC.

Inventor： Jong Moon Kim ,  In Hwan Choi ,  Kook Yeon Kwak ,  Byoung Gill Kim ,  Won Gyu Song ,  Jin Woo Kim ,  Hyoung Gon Lee

IPC: H04L27/00 ,  H04N21/235 ,  H04L7/027 ,  H04L7/04 ,  H04L27/06 ,  H04L27/227 ,  H04N5/44 ,  H04N5/455 ,  H04N21/2383 ,  H04N21/438 ,  H04L1/00

CPC classification number: H04N21/2353 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/007 ,  H04L1/0071 ,  H04L7/027 ,  H04L7/042 ,  H04L27/066 ,  H04L27/2272 ,  H04N5/4401 ,  H04N5/455 ,  H04N21/2383 ,  H04N21/4382

Abstract: A digital television (DTV) receiving system includes an information detector, a resampler, a timing recovery unit, and a carrier recovery unit. The information detector detects a known data sequence which is periodically inserted in a digital television (DTV) signal received from a DTV transmitting system. The resampler resamples the DTV signal at a predetermined resampling rate. The timing recovery unit performs timing recovery on the DTV signal by detecting a timing error from the resampled DTV signal using the detected known data sequence. The carrier recovery unit performs carrier recovery on the resampled DTV signal by estimating a frequency offset value of the resampled DTV signal using the detected known data sequence.

公开(公告)号：USRE46458E1

公开(公告)日：2017-06-27

申请号：US14590728

申请日：2015-01-06

Applicant: LG ELECTRONICS INC.

Inventor： Hyoung Gon Lee ,  In Hwan Choi ,  Kook Yeon Kwak ,  Byoung Gill Kim ,  Won Gyu Song ,  Sung Ryong Hong ,  Jong Moon Kim ,  Jae Hyung Kim ,  Jin Woo Kim

IPC: H04L27/00 ,  H03M13/03 ,  H04N21/2383

CPC classification number: H03M13/03 ,  H03M13/033 ,  H04N21/235 ,  H04N21/23614 ,  H04N21/2383 ,  H04N21/4348

Abstract: A digital television transmitting system includes a frame encoder, a block processor, a group formatter, and a multiplexer. The frame encoder forms an enhanced data frame and encodes the data frame for error correction and for error detection. The block processor further encodes the encoded data frame at a rate of 1/2 or 1/4, and the group formatter divides the encoded data frame into a plurality of enhanced data blocks and maps the divided data blocks into a plurality of enhanced data groups, respectively. The multiplexer multiplexes the enhanced data groups with main data.

公开(公告)号：USRE46280E1

公开(公告)日：2017-01-17

申请号：US14226654

申请日：2014-03-26

Applicant: LG ELECTRONICS INC.

Inventor： Hyoung Gon Lee ,  In Hwan Choi ,  Kook Yeon Kwak ,  Jong Moon Kim ,  Won Gyu Song ,  Byoung Gill Kim ,  Jin Woo Kim

IPC: H04N5/38 ,  H04N21/434 ,  H04N21/236 ,  H04N21/2362 ,  H04N21/2365 ,  H04N19/89 ,  H04N21/435 ,  H04N21/438 ,  H04N21/4425 ,  H04N21/235

CPC classification number: H04N21/4347 ,  H04N19/89 ,  H04N21/235 ,  H04N21/23611 ,  H04N21/2362 ,  H04N21/2365 ,  H04N21/435 ,  H04N21/4382 ,  H04N21/4425

Abstract: A digital television (DTV) receiving system includes a tuner, a demodulator, a known data detector, an equalizer, a transmission detector, and a block decoder. The tuner receives a DTV signal having a data frame in which main and mobile service data are multiplexed. The demodulator demodulates the DTV signal, and the known data detector detects known data included in the mobile service data. The equalizer equalizes the demodulated DTV signal using the detected known data, and the transmission parameter detector detects an error correction mode from the equalized DTV signal. Finally, the block decoder decodes the equalized DTV signal for error correction using the detected error correction mode.

Abstract translation: 数字电视（DTV）接收系统包括调谐器，解调器，已知数据检测器，均衡器，发送检测器和块解码器。 调谐器接收具有多路复用主服务数据和移动业务数据的数据帧的DTV信号。 解调器解调DTV信号，并且已知的数据检测器检测包括在移动业务数据中的已知数据。 均衡器使用检测到的已知数据来均衡解调的DTV信号，并且传输参数检测器从均衡的DTV信号检测纠错模式。 最后，块解码器使用检测到的纠错模式解码用于纠错的均衡的DTV信号。

公开(公告)号：US09490936B2

公开(公告)日：2016-11-08

申请号：US14152742

申请日：2014-01-10

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hyung Song ,  In Hwan Choi ,  Ho Taek Hong ,  Kook Yeon Kwak ,  Byoung Gill Kim ,  Jong Yeul Suh ,  Jin Pil Kim ,  Won Gyu Song ,  Chul Soo Lee ,  Jin Woo Kim ,  Hyoung Gon Lee ,  Joon Hui Lee

IPC: H04L1/00 ,  H04N21/414 ,  H04N21/426 ,  H04N21/434 ,  H04N21/442

CPC classification number: H04L1/0041 ,  H03M13/2732 ,  H03M13/2792 ,  H03M13/2906 ,  H04L1/0034 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0071 ,  H04L61/6059 ,  H04L69/324 ,  H04L2001/0093 ,  H04N21/41407 ,  H04N21/42607 ,  H04N21/434 ,  H04N21/4345 ,  H04N21/44209 ,  H04N21/64322

Abstract: The present invention is directed to a digital broadcast system and a data processing method. A broadcast signal in which mobile service data and main service data are multiplexed is transmitted and received. Then, in a broadcasting receiver, the program table information including information about a service or a program of an ensemble is parsed according to an identifier of the ensemble in which the mobile service data are multiplexed, in the received broadcast signal. And a mobile service is outputted by using the mobile service data and the parsed program table information.

Abstract translation: 本发明涉及数字广播系统和数据处理方法。 发送接收移动业务数据和主业务数据被复用的广播信号。 然后，在接收到的广播信号中，在广播接收机中，根据其中多路复用移动业务数据的集合的标识符，解码包括关于业务或组播节目的信息的节目表信息。 并且通过使用移动业务数据和解析的节目表信息来输出移动业务。

公开(公告)号：US09438931B2

公开(公告)日：2016-09-06

申请号：US14723342

申请日：2015-05-27

Applicant: LG Electronics Inc.

Inventor： Jong Yeul Suh ,  In Hwan Choi ,  Ho Taek Hong ,  Kook Yeon Kwak ,  Byoung Gill Kim ,  Jae Hyung Song ,  Jin Pil Kim ,  Won Gyu Song ,  Jin Woo Kim ,  Hyoung Gon Lee ,  Joon Hui Lee ,  Chul Soo Lee

IPC: H03M13/00 ,  H04N19/65 ,  H04H20/55 ,  H04H20/95 ,  H04N21/235 ,  H04N21/2383 ,  H04N21/414 ,  H04N21/434 ,  H04N21/435 ,  H04N21/438 ,  H04N21/4425 ,  H04N21/643 ,  H04H20/71

CPC classification number: H04N21/4425 ,  H04H20/55 ,  H04H20/71 ,  H04H20/95 ,  H04N19/65 ,  H04N21/235 ,  H04N21/2383 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/435 ,  H04N21/4382 ,  H04N21/64322

Abstract: A method of transmitting a broadcast signal includes encoding mobile service data to build a Reed-Solomon (RS) frame according to an RS frame mode, wherein the mobile service data is either a mobile service data of a base layer or a mobile service data of the base layer and at least one enhancement layer, wherein each layer is specified by a layer identifier, wherein a layer identifier value of the base layer is set to 0 and a layer identifier value of the at least one enhancement layer starts from 1; and encoding signaling data, wherein the signaling data includes fast information channel (FIC) data and transmission parameter channel (TPC) data, and the FIC data includes information for rapid mobile service acquisition.

公开(公告)号：US09281919B2

公开(公告)日：2016-03-08

申请号：US14084185

申请日：2013-11-19

Applicant: LG ELECTRONICS INC.

Inventor： Chul Soo Lee ,  In Hwan Choi ,  Ho Taek Hong ,  Kook Yeon Kwak ,  Hyoung Gon Lee ,  Jae Hyung Song ,  Jin Pil Kim ,  Won Gyu Song ,  Joon Hui Lee ,  Jin Woo Kim ,  Byoung Gill Kim ,  Jong Yeul Suh ,  Kyu Tae Ahn

IPC: H03M13/00 ,  H04L1/00 ,  H04H40/18 ,  H04H60/11 ,  H04N21/435 ,  H04N21/438 ,  H04N21/4623 ,  H04N21/6433 ,  H04N19/70 ,  H04N19/61 ,  H04H20/65 ,  H04L29/06

CPC classification number: H03M13/2792 ,  H03M13/1515 ,  H04H20/65 ,  H04H40/18 ,  H04H60/11 ,  H04L1/004 ,  H04L1/0041 ,  H04L1/0046 ,  H04L1/0065 ,  H04L1/0071 ,  H04L12/189 ,  H04L65/4076 ,  H04L65/607 ,  H04L69/16 ,  H04N19/61 ,  H04N19/70 ,  H04N21/435 ,  H04N21/4382 ,  H04N21/4623 ,  H04N21/6433

Abstract: A method of transmitting a broadcast signal includes encoding mobile data for FEC (Forward Error Correction); encoding signaling information for signaling the mobile data; allocating the encoded mobile data and signaling data into a transmission frame; and transmitting the broadcast signal including the transmission frame, wherein the transmission frame includes a service signaling table having service_type information identifying a type of a service of the mobile data and hidden information indicating whether the service of the mobile data is hidden or not.

Abstract translation: 发送广播信号的方法包括编码用于FEC（前向纠错）的移动数据; 编码用于信令移动数据的信令信息; 将编码的移动数据和信令数据分配到传输帧中; 以及发送包括所述传输帧的广播信号，其中所述传输帧包括具有标识所述移动数据的服务类型的service_type信息的服务信令表以及指示所述移动数据的服务是否被隐藏的隐藏信息。

公开(公告)号：US08689086B2

公开(公告)日：2014-04-01

申请号：US13850163

申请日：2013-03-25

Applicant: LG Electronics Inc.

Inventor： Hyoung Gon Lee ,  In Hwan Choi ,  Kook Yeon Kwak ,  Jong Moon Kim ,  Won Gyu Song ,  Byoung Gill Kim ,  Jin Woo Kim

IPC: H03M13/00

CPC classification number: H03M13/2792 ,  H03M13/1515 ,  H03M13/2703 ,  H03M13/6522 ,  H04L1/0041 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0058 ,  H04L1/0061 ,  H04L1/0065 ,  H04L1/007 ,  H04L1/0071 ,  H04N21/235 ,  H04N21/23614 ,  H04N21/2383 ,  H04N21/4348 ,  H04N21/435 ,  H04N21/4382

Abstract: A DTV transmitting system includes an encoder, a randomizer, a block processor, a group formatter, a deinterleaver, and a packet formatter. The encoder codes enhanced data for error correction, permutes the coded data, and further codes the permuted data for error detection. The randomizer randomizes the coded enhanced data, and the block processor codes the randomized data at an effective coding rate of 1/H. The group formatter forms a group of enhanced data having data regions, and inserts the coded enhanced data into at least one of the data regions. The deinterleaver deinterleaves the group of enhanced data, and the packet formatter formats the deinterleaved data into corresponding data bytes.

Abstract translation: DTV发送系统包括编码器，随机发生器，块处理器，组格式器，解交织器和分组格式化器。 编码器对用于纠错的增强数据进行编码，对编码数据进行置换，并进一步编码用于错误检测的置换数据。 随机化器将编码的增强数据随机化，并且块处理器以1 / H的有效编码率对随机数据进行编码。 组格式化器形成具有数据区域的一组增强数据，并将编码的增强数据插入至少一个数据区域。 解交织器对一组增强数据进行解交织，并且数据包格式化器将解交织的数据格式化为相应的数据字节。

公开(公告)号：USRE49757E1

公开(公告)日：2023-12-12

申请号：US17330230

申请日：2021-05-25

Applicant: LG ELECTRONICS INC.

Inventor： Jin Pil Kim ,  Young In Kim ,  Ho Taek Hong ,  In Hwan Choi ,  Kook Yeon Kwak ,  Hyoung Gon Lee ,  Byoung Gill Kim ,  Jin Woo Kim ,  Won Gyu Song ,  Jong Moon Kim

IPC: H03M13/29 ,  H04H20/55 ,  H04H20/95 ,  H04L1/00

CPC classification number: H04H20/55 ,  H04H20/95 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/0083 ,  H04L2001/0093

Abstract: A digital broadcast transmitting/receiving system and a method for processing data are disclosed. The method for processing data may enhance the receiving performance of the receiving system by performing additional coding and multiplexing processes on the traffic information data and transmitting the processed data. Thus, robustness is provided to the traffic information data, thereby enabling the data to respond strongly against the channel environment which is always under constant and vast change.

公开(公告)号：US10784898B2

公开(公告)日：2020-09-22

申请号：US16107589

申请日：2018-08-21

Applicant: LG ELECTRONICS INC.

Inventor： Hyen O Oh ,  In Hwan Choi ,  Kook Yeon Kwak ,  Byoung Gill Kim ,  Won Gyu Song ,  Jin Woo Kim ,  Hyoung Gon Lee

IPC: H03M13/27 ,  H04N21/434 ,  H04N21/2365 ,  H04N21/438 ,  H04N19/44 ,  H04N19/42 ,  H04N19/89 ,  H04H20/71 ,  H04L1/00 ,  H03M13/29

Abstract: A digital broadcasting system which is robust against an error when mobile service data is transmitted and a method of processing data are disclosed. The mobile service data is subjected to an additional coding process and the coded mobile service data is transmitted. Accordingly, it is possible to cope with a serious channel variation while applying robustness to the mobile service data.

公开(公告)号：USRE47856E1

公开(公告)日：2020-02-11

申请号：US15589741

申请日：2017-05-08

Applicant: LG ELECTRONICS INC.

Inventor： Byoung Gill Kim ,  In Hwan Choi ,  Jin Woo Kim ,  Jong Moon Kim ,  Won Gyu Song ,  Hyoung Gon Lee ,  Kook Yeon Kwak

IPC: H04L27/00 ,  H04N5/38 ,  H04L1/00 ,  H04N21/438 ,  H04L25/03 ,  H04N5/44 ,  H04N21/61 ,  H04L25/02 ,  H04N21/2389

Abstract: A digital television (DTV) transmitting system is provided that includes an encoder, a group formatter, a packet formatter and a transmission unit. The group formatter forms data groups where the plurality of second known data sequences are spaced 16 segments apart within at least one of the data groups that includes a transmission parameter inserted between the first known data sequence and the plurality of second known data sequences and the first known data sequence has a first M-symbol sequence and a second M-symbol sequence, the first M-symbol sequence and the second M-symbol sequence have a first pattern, each of the plurality of second known data sequences has a second pattern other than the first pattern, and the second pattern is positioned from a last symbol to a previous N symbol in each of the plurality of second known data sequences.