公开(公告)号：USRE48627E1

公开(公告)日：2021-07-06

申请号：US16260646

申请日：2019-01-29

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

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：USRE46838E1

公开(公告)日：2018-05-08

申请号：US14319415

申请日：2014-06-30

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.

公开(公告)号：US09924208B2

公开(公告)日：2018-03-20

申请号：US14987436

申请日：2016-01-04

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 ,  H04N21/236 ,  H04L1/00 ,  H04N21/234 ,  H04N21/235 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/24 ,  H04N21/435 ,  H04N21/438 ,  H04N21/44 ,  H04N21/4425 ,  H03M13/29 ,  H04L25/03

CPC classification number: H04N21/23614 ,  H03M13/2936 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0061 ,  H04L1/0065 ,  H04L1/0071 ,  H04L25/03178 ,  H04N21/23424 ,  H04N21/235 ,  H04N21/2353 ,  H04N21/236 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/2404 ,  H04N21/435 ,  H04N21/4382 ,  H04N21/4384 ,  H04N21/44016 ,  H04N21/4425

Abstract: A method is described for transmitting broadcast signals. First encoding of first broadcast service data is performed. Second encoding of the first encoded first broadcast service data is performed. The broadcast signals having the second encoded first broadcast service data multiplexed with second broadcast service data are transmitted. Each of the second encoded first broadcast service data and the second broadcast service data is allocated in a different data unit. The second encoded first broadcast service data and the second broadcast service data are allocated in different data units, respectively. Different robustness are allocated to the first broadcast service data and the second broadcast service data.

公开(公告)号：US09912354B2

公开(公告)日：2018-03-06

申请号：US14885882

申请日：2015-10-16

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: H04L1/00 ,  H03M13/27 ,  H04L7/04 ,  H04L27/00 ,  H04N21/2383 ,  H04N21/438 ,  H04W4/06 ,  H03M13/09 ,  H04L12/18 ,  H04L7/00

CPC classification number: H03M13/2792 ,  H03M13/09 ,  H04L1/0041 ,  H04L7/0029 ,  H04L7/042 ,  H04L12/189 ,  H04L27/0014 ,  H04L2027/003 ,  H04N21/2383 ,  H04N21/4382 ,  H04W4/06

Abstract: A digital broadcast receiving system includes a known data detector, a carrier recovery unit, and a timing recovery unit. The known data detector may detect known data information inserted and transmitted from a digital broadcast transmitting system and using the known data information to estimate initial frequency offset. The carrier recovery unit may obtain initial synchronization by using the initial frequency offset, and may detect frequency offset from the received data by using the known sequence position indicator so as to perform carrier recovery. The timing recovery unit may detect timing error information from the received signal by using the known sequence position indicator so as to perform timing recovery.

公开(公告)号：US09743382B2

公开(公告)日：2017-08-22

申请号：US14254639

申请日：2014-04-16

Applicant: LG ELECTRONICS INC.

Inventor： Il Soo Cho ,  Hyeon Cheol Cho ,  Jong Sun Park ,  In Hwan Choi ,  Hyoung Gon Lee ,  Won Gyu Song ,  Seung Man Kim ,  Jong Moon Kim ,  Jin Woo Kim ,  Kook Yeon Kwak ,  Byoung Gill Kim

IPC: H04W4/00 ,  H04W72/00 ,  G01C21/00 ,  H04W72/04

CPC classification number: H04W72/005 ,  G01C21/00 ,  H04W72/0446

Abstract: A broadcast receiving system capable of receiving mobile broadcast data and a method for processing broadcast signals are disclosed. The broadcast receiving system includes a first receiving unit, a second receiving unit, a known sequence detector, a equalizer, and a display unit. The first receiving unit receives a first broadcast signal including first mobile broadcast service data and first main broadcast service data. The second receiving unit receives a second broadcast signal including second mobile broadcast service data and second main broadcast service data. The known sequence detector detects at least one of known data included in the received first broadcast signal and known data included in the received second broadcast signal. The channel equalizer uses the detected known data, thereby channel-equalizing the received first and second mobile broadcast service data corresponding to the detected known data. The display unit provides any one of first video data and second video data included in the channel-equalized first and second mobile broadcast service data to a user.

公开(公告)号：USRE46437E1

公开(公告)日：2017-06-13

申请号：US14514056

申请日：2014-10-14

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

CPC classification number: H04N5/4401 ,  H04L1/0047 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/0061 ,  H04L1/0065 ,  H04L1/0071 ,  H04L25/0232 ,  H04L25/03159 ,  H04L25/03273 ,  H04L25/03292 ,  H04L2027/0026 ,  H04N21/2389 ,  H04N21/4382 ,  H04N21/6131

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.

公开(公告)号：USRE46436E1

公开(公告)日：2017-06-13

申请号：US14729520

申请日：2015-06-03

Applicant: LG Electronics Inc.

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

IPC: H04N7/20 ,  H04H20/59 ,  H04N21/438

CPC classification number: H04N5/4401 ,  H04H20/59 ,  H04H40/27 ,  H04N5/38 ,  H04N7/163 ,  H04N21/235 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/435 ,  H04N21/4382 ,  H04N21/4383 ,  H04N21/814 ,  H04N21/8146 ,  Y10S370/912 ,  Y10S370/916

Abstract: A method for receiving a broadcasting signal and a broadcasting signal receiver are disclosed. Even when a cell is changed while an emergency alert is output, the emergency alert can be continuously output using emergency alert table information included in the broadcasting signal and channel information of the cell. The emergency alert table information may include a cell identifier and the channel information of the cell may include virtual channel information of the cell.

公开(公告)号：US09521441B2

公开(公告)日：2016-12-13

申请号：US14018307

申请日：2013-09-04

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: H04N7/173 ,  H04N21/236 ,  H04L25/02 ,  H04L25/03 ,  H04N21/238 ,  H04N21/2389 ,  H04L1/00

CPC classification number: H04N21/236 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0071 ,  H04L25/0232 ,  H04L25/03159 ,  H04N21/238 ,  H04N21/2389

Abstract: A digital broadcast transmitter includes: a first encoder configured to Forward Error Correction (FEC) encode broadcast service data to add parity data, thereby generating an FEC frame, and divide the FEC frame into a plurality of groups, each of the plurality of groups having a same size; a second encoder configured to encode transmission parameter data; an interleaver configured to interleave data of the plurality of groups; and a transmitting unit configured to transmit the interleaved data and the encoded transmission parameter data, wherein the transmission parameter data include information for identifying a number of the parity data.

Abstract translation: 数字广播发射机包括：第一编码器，被配置为前向纠错（FEC）编码广播服务数据以添加奇偶校验数据，从而生成FEC帧，并将FEC帧划分成多个组，每组具有 大小相同 第二编码器，被配置为编码传输参数数据; 配置为交织所述多个组的数据的交织器; 以及发送单元，被配置为发送所述交织数据和所述编码的发送参数数据，其中，所述发送参数数据包括用于识别所述奇偶校验数据的数量的信息。

公开(公告)号：USRE46124E1

公开(公告)日：2016-08-23

申请号：US14483032

申请日：2014-09-10

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 ,  H04N21/434 ,  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：US09392281B2

公开(公告)日：2016-07-12

申请号：US14073605

申请日：2013-11-06

Applicant: LG ELECTRONICS INC.

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

IPC: H04N5/917 ,  H04N19/66 ,  H04N19/70 ,  H04N19/61

CPC classification number: H04L1/0061 ,  H03M13/11 ,  H03M13/613 ,  H04L1/0071 ,  H04L12/18 ,  H04N19/61 ,  H04N19/66 ,  H04N19/70

Abstract: A digital television (DTV) transmitting system includes a first frame decoder, a second frame decoder, and a frame multiplexer. The first frame decoder forms first enhanced data frames, encodes each data frame for error correction, forms a first super frame by combining the encoded first frames, and interleaves the first super frame. The second frame decoder forms second enhanced data frames, encodes each data frame for error correction, forms a second super frame by combining the encoded second frames, and interleaves the second super frame. The frame multiplexer multiplexes the interleaved first and second enhanced data frames.

Abstract translation: 数字电视（DTV）传输系统包括第一帧解码器，第二帧解码器和帧多路复用器。 第一帧解码器形成第一增强数据帧，对每个数据帧进行纠错，通过组合编码的第一帧形成第一超帧，并交织第一超帧。 第二帧解码器形成第二增强数据帧，对每个数据帧进行纠错，通过组合编码的第二帧形成第二超帧，并交织第二超帧。 帧多路复用器多路复用交错的第一和第二增强数据帧。