公开(公告)号：US10609520B2

公开(公告)日：2020-03-31

申请号：US15630799

申请日：2017-06-22

Applicant: LG ELECTRONICS INC.

Inventor： Chul Soo Lee ,  In Hwan Choi ,  Jae Hyung Song ,  Seung Jong Choi

IPC: H03M13/35 ,  H04W4/06 ,  H04W72/04 ,  H04W8/26 ,  H04H20/30 ,  H04H20/57 ,  H04L1/00 ,  H04L29/06 ,  H04N21/438 ,  H03M13/09 ,  H03M13/15 ,  H03M13/27 ,  H03M13/29

Abstract: A digital broadcasting system and a data processing method are disclosed. In an aspect of the present invention, the present invention provides a data processing method including receiving a broadcast signal in which main service data and mobile service data are multiplexed, demodulating the received broadcast signal, outputting demodulation time information of a specific position of a broadcast signal frame, and acquiring reference time information contained in the mobile service data frame, setting the reference time information to a system time clock at a specific time based on the demodulation time information and decoding the mobile service data according to the system time clock.

公开(公告)号：USRE47792E1

公开(公告)日：2019-12-31

申请号：US14275591

申请日：2014-05-12

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: H04L27/04 ,  H03M13/25 ,  H04H20/57 ,  H03M13/00 ,  H03M13/29 ,  H04L1/00 ,  H04H20/30

Abstract: A digital broadcast system including a broadcast receiving system and data processing method are disclosed. In the broadcast receiving system receiving broadcast signals, the broadcast receiving system includes a transmission parameter decoding unit, a known sequence detector, and a burst controller. The transmission parameter decoding unit detects information on a burst of a received signal from broadcast data having main service data and mobile service data multiplexed therein within a field of the received signal and outputs the detected information on the burst. The known sequence detector receives burst information from the transmission parameter decoding unit and uses the received burst information and known data position information included in the received data, so as to output burst control information. The burst controller uses the burst control information to control power supply of the broadcast receiving system.

公开(公告)号：US10454616B2

公开(公告)日：2019-10-22

申请号：US15810513

申请日：2017-11-13

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: H04L1/00 ,  H04N19/70 ,  H04N19/61 ,  H04N19/66 ,  H03M13/11 ,  H03M13/00 ,  H04L12/18

Abstract: A method of processing data in a receiving system, the method includes receiving a broadcast signal including a plurality of data groups that include broadcast data and first parity data; demodulating the received broadcast signal; performing first decoding on the broadcast data in a frame based on the first parity data for error correction, wherein the frame is formed based on the plurality of data groups in the demodulated broadcast signal and wherein the plurality of groups have a same size; and de-randomizing the first decoded broadcast data, wherein second decoding on the broadcast data in the frame is selectively performed, wherein the broadcast signal further includes signaling information that contains a transmission parameter to indicate whether second encoding was performed on the broadcast data in a transmitting system, wherein, when the transmission parameter indicates that the second encoding was performed on the broadcast data.

公开(公告)号：USRE47611E1

公开(公告)日：2019-09-17

申请号：US15286190

申请日：2016-10-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyoung Gon Lee ,  In Hwan Choi ,  Kyong Won Kang

IPC: H04L5/12 ,  H03M13/27 ,  H03M13/35 ,  H03M13/29

Abstract: A DTV transmitter includes a pre-processor pre-processing enhanced data, a data formatter generating enhanced data packets including known data, a multiplexer multiplexing the enhanced data packets with main data packets, a data randomizer randomizing the multiplexed data packets, an RS encoder RS-encoding the randomized data packets, and a data interleaver interleaving the RS-coded data packets, where a plurality of known data sequences are included in the interleaved enhanced data packets. Finally, the DTV transmitter further includes an enhanced encoder which codes each block of enhanced data placed between any two of the known data sequences and bypasses the interleaved main data packets.

公开(公告)号：USRE47462E1

公开(公告)日：2019-06-25

申请号：US14836832

申请日：2015-08-26

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: H04H20/30 ,  H04H20/55 ,  H04H20/57 ,  H04H60/73

Abstract: A digital broadcast system and a data processing method are disclosed. A receiving system of the digital broadcast system includes a signal receiving unit, a demodulating unit, a program table decoder, and a controller. The signal receiving unit receives a broadcast signal in which at least one parade and main service data are multiplexed, each parade including mobile service data and data of at least one section of a program table for decoding the mobile service data. The demodulating unit demodulates data of at least one parade included in the broadcast signal. The program table decoder scans at least one demodulated parade, receives each section of the program table from the scanned parade to construct a corresponding program table, and parses the constructed program table to output program table information. The controller controls decoding of the demodulated mobile service data according to the parsed program table information.

公开(公告)号：USRE47294E1

公开(公告)日：2019-03-12

申请号：US14552652

申请日：2014-11-25

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 ,  H04L1/00 ,  H04H20/95

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：US10070151B2

公开(公告)日：2018-09-04

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: H04N7/12 ,  H04N19/66 ,  H04B1/68 ,  H04N21/236 ,  H04N21/2383 ,  H04N21/262 ,  H04N21/434 ,  H04N21/438 ,  H04N21/6547 ,  H04N19/46

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.

公开(公告)号：US09924206B2

公开(公告)日：2018-03-20

申请号：US15653340

申请日：2017-07-18

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

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：US09887853B2

公开(公告)日：2018-02-06

申请号：US15008096

申请日：2016-01-27

Applicant: LG ELECTRONICS INC.

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

IPC: H03M13/00 ,  H04L12/18 ,  H04N21/2383 ,  H04L1/00 ,  H04H20/71 ,  H03M13/27 ,  H04N21/438

CPC classification number: H04L12/189 ,  H03M13/2792 ,  H04H20/71 ,  H04L1/0041 ,  H04L1/0047 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/0065 ,  H04N21/2383 ,  H04N21/4382

Abstract: A digital broadcasting system and method of processing data are disclosed. Herein, a method of processing data in a transmitting system includes creating a data group including a plurality of mobile service data packets, re-adjusting a relative position of at least one main service data packet of a main service data section, the main service data section including a plurality of main service data packets, and multiplexing the mobile service data of the data group and the main service data of the main service data section in burst units. Herein, a position of an audio data packet among the main service data packets of the main service data section may be re-adjusted. Also, a position of an audio data packet included in the main service data section may be re-adjusted based upon a multiplexing position of the main service data section.

公开(公告)号：US09831969B2

公开(公告)日：2017-11-28

申请号：US14142304

申请日：2013-12-27

Applicant: LG ELECTRONICS INC.

Inventor： Won Gyu Song ,  Byoung Gill Kim ,  Jin Woo Kim ,  Hyoung Gon Lee ,  Jae Hyung Song ,  In Hwan Choi ,  Chul Kyu Mun

IPC: H04H20/71 ,  H04H60/11 ,  H04N21/2343 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/61 ,  H04N21/63 ,  H04H20/57 ,  H04L1/00

CPC classification number: H04H20/71 ,  H04H20/57 ,  H04H60/11 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/007 ,  H04L1/0071 ,  H04N21/234327 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/6131 ,  H04N21/631

Abstract: A transmitting system and a method of transmitting digital broadcast signal are provided. The method of transmitting digital broadcasting signal in a transmitter includes multiplexing mobile data and main data, transmitting a transmission frame including the multiplexed mobile and main data, where a parade of data group is transmitted during slots, where each slot includes specified number of mobile data packets, a first scalable number of mobile data packets, and a second scalable number of main data packets, where the data group including a plurality of regions and the fifth region of the plurality of regions includes the first scalable number of mobile data packets, and where the data group is assigned to one of the slots in such a manner that slots of consecutive slot number carry data groups of inconsecutive group number.