公开(公告)号：USRE45668E1

公开(公告)日：2015-09-08

申请号：US14250287

申请日：2014-04-10

Applicant: LG Electronics Inc.

Inventor： In Hwan Choi

IPC: H04L5/12 ,  H04L27/34 ,  H04L1/00 ,  H04N21/238

CPC classification number: H04L27/3405 ,  H04L1/0041 ,  H04L1/005 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/007 ,  H04L1/0071 ,  H04N21/238

Abstract: A digital television (DTV) transmitter and a method of coding data in the DTV transmitter are disclosed. A data formatter generates an enhanced data packet including the enhanced data and a known data sequence. A data randomizer randomizes the enhanced data packet. A RS encoder RS-codes the randomized data packet by adding first parity data, and a data interleaver interleaves the RS-coded data packet. A trellis encoding unit trellis-encodes the interleaved data packet. Herein the trellis encoding unit includes a TCM encoder for generating a first output bit by trellis-encoding a first input bit and generating a second output bit by bypassing the first input bit, and a pre-coder for generating a third output bit by pre-coding a second input bit, wherein memories included in the TCM encoder and the pre-coder are initialized when the known data sequence is inputted to the trellis encoding unit.

公开(公告)号：US09071278B2

公开(公告)日：2015-06-30

申请号：US14287937

申请日：2014-05-27

Applicant: LG ELECTRONICS INC.

Inventor： Hui Sang Yoo ,  In Hwan Choi ,  Chul Soo Lee ,  Jae Hyung Song ,  Pil Sup Shin

IPC: H04N7/16 ,  H04N7/20 ,  H04N7/173 ,  H04H20/74 ,  H04H20/71 ,  H03M13/25 ,  H04N5/44 ,  H04N5/445 ,  H04N5/50 ,  H04N21/235 ,  H04N21/414 ,  H04N21/434 ,  H04N21/435 ,  H04N21/462 ,  H04N21/61 ,  H03M13/29 ,  H04L1/00 ,  H04L27/04 ,  H04N5/40 ,  H04N7/52 ,  H04N5/38 ,  H04L25/03

CPC classification number: H04L1/0041 ,  H03M13/251 ,  H03M13/2936 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/0071 ,  H04L27/04 ,  H04L65/4076 ,  H04L2025/03382 ,  H04N5/38 ,  H04N5/40 ,  H04N5/4401 ,  H04N5/44543 ,  H04N5/50 ,  H04N7/52 ,  H04N21/235 ,  H04N21/414 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/435 ,  H04N21/4622 ,  H04N21/6131

Abstract: The present invention provides a data processing method, the data processing method including receiving a broadcasting signal where mobile service data are multiplexed with main service data, extracting transmission-parameter-channel signaling information and fast-information-channel signaling information from a data group within the received mobile service data, parsing first program table information describing virtual channel information of an ensemble and a service provided by the ensemble using the fast-information-channel signaling information, the ensemble the ensemble corresponding to a virtual channel group of the received mobile service data, obtaining information representing that second program table information, which includes a descriptor describing event information of the mobile service data, is received, from the first program table information, parsing the second program table information, and storing the event information and displaying service guide information including the event information.

Abstract translation: 本发明提供一种数据处理方法，该数据处理方法包括接收移动业务数据与主业务数据复用的广播信号，从数据组内的数据组提取发送参数信道信令信息和快速信息信道信令信息 接收到的移动业务数据，使用快速信息信道信令信息来解析描述集合的虚拟信道信息的第一节目表信息和由集合提供的业务，所述集合对应于所接收的移动业务的虚拟信道组 数据，从第一节目表信息中接收表示第二节目表信息的信息，该第二节目表信息包括描述移动业务数据的事件信息的描述符，解析第二节目表信息，并存储事件信息和显示服务指南 信息包括 uding事件信息。

公开(公告)号：USRE45506E1

公开(公告)日：2015-05-05

申请号：US14206939

申请日：2014-03-12

Applicant: LG Electronics Inc.

Inventor： In Hwan Choi ,  Kyong Won Kang

IPC: H04L27/06

CPC classification number: H04L27/06 ,  H03M13/2707 ,  H03M13/3961 ,  H03M13/4107 ,  H03M13/6331 ,  H04L27/02

Abstract: An enhanced VSB receiver includes a tuner which tunes an RF signal and converts it into an IF signal, an IF mixer which converts the IF signal into a baseband signal, and a demodulator which demodulates the baseband signal into a VSB signal. The enhanced VSB receiver further includes a map recovery unit which recovers VSB map information of the VSB signal, an enhanced equalizer for compensating channel distortion of the VSB signal and outputting an equalized symbol, and an enhanced Viterbi decoder for estimating whether polarity inversion occurred during a symbol period of the equalized symbol and Viterbi-decoding the equalized symbol based on the polarity estimation.

Abstract translation: 增强的VSB接收机包括调谐RF信号并将其转换成IF信号的调谐器，将IF信号转换为基带信号的IF混频器以及将基带信号解调为VSB信号的解调器。 增强型VSB接收机还包括恢复VSB信号的VSB映射信息的映射恢复单元，用于补偿VSB信号的信道失真并输出均衡符号的增强均衡器，以及增强维特比解码器，用于估计在 符号周期，并且基于极性估计对均衡符号进行维特比译码。

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.

公开(公告)号：US10264553B2

公开(公告)日：2019-04-16

申请号：US15666252

申请日：2017-08-01

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

Abstract: A method and apparatus for transmitting a broadcast signal are provided. Data of data packets is encoded to add first parity data to the data packets. The data packets include broadcast data and signaling data for a service. The signaling data includes type information indicating a type of the service and channel information of the service. Information for acquisition of the signaling data is predefined. The encoded data is block interleaved. The block-interleaved data is convolutional interleaved. Transmission parameters are first encoded for signaling the broadcast data to add second parity data to the transmission parameters, and the first-encoded transmission parameters are second encoded at a code rate. A frame including the convolutional interleaved data and the second-encoded transmission parameters is built. The broadcast signal including the frame is transmitted. The transmission parameters include information for identifying a number of the first parity data.

公开(公告)号：US10136169B2

公开(公告)日：2018-11-20

申请号：US15666524

申请日：2017-08-01

Applicant: LG ELECTRONICS INC.

Inventor： Sang Kil Park ,  In Hwan Choi ,  Jae Hyung Song ,  Chul Soo Lee

IPC: H04N21/236 ,  H04N21/2347 ,  H04N21/235 ,  H04N21/2362 ,  H04N21/2383 ,  H04N21/266 ,  H04N21/61 ,  H04N21/81 ,  H04H20/30 ,  H04H20/55 ,  H04H20/57 ,  H04L9/30

Abstract: A method of processing broadcast data includes: performing RS encoding and CRC encoding on mobile service data to generate an RS frame belonging to an ensemble including a signaling information table including access information of the mobile service data and identification information for identifying a stream where keys to decrypt the mobile service data are obtained; mapping a portion of data in the RS frame to a group including known data sequences, FIC data, and TPC data, wherein the FIC data includes information for rapid mobile service acquisition, and the TPC data includes FIC version information for indicating an update of the FIC data; and transmitting a broadcast signal including the group. The group further includes data blocks. First, fourth, fifth and sixth known data sequences are inserted into third, fifth, sixth and seventh data blocks, respectively. Second and third known data sequences are inserted into a fourth data block.

公开(公告)号：US10070160B2

公开(公告)日：2018-09-04

申请号：US15886458

申请日：2018-02-01

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

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.