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：US20180014210A1

公开(公告)日：2018-01-11

申请号：US15603985

申请日：2017-05-24

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: H04W24/02 ,  H04N21/438 ,  H03M13/29 ,  H04H20/30 ,  H04N21/434 ,  H04N21/2383 ,  H04N21/2381 ,  H04N21/2362 ,  H04N21/236 ,  H04L29/06 ,  H04L1/00 ,  H04J3/02 ,  H04H60/72 ,  H04H20/57 ,  H04N21/6437 ,  H03M13/15 ,  H04H20/55 ,  H03M13/23 ,  H03M13/09

CPC classification number: H04W24/02 ,  H03M13/09 ,  H03M13/15 ,  H03M13/1515 ,  H03M13/23 ,  H03M13/2912 ,  H03M13/2915 ,  H03M13/2945 ,  H04H20/30 ,  H04H20/55 ,  H04H20/57 ,  H04H60/72 ,  H04J3/02 ,  H04L1/0041 ,  H04L1/0058 ,  H04L1/0061 ,  H04L69/22 ,  H04N21/23614 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/4345 ,  H04N21/4348 ,  H04N21/4381 ,  H04N21/4382 ,  H04N21/6437

Abstract: The present invention relates to a digital broadcasting system for transmitting/receiving a digital broadcasting signal and a method of processing data. In one aspect of the present invention provides a method of processing data, the method including receiving a broadcasting signal in which mobile service data and main service data are multiplexed, demodulating the received broadcasting signal, obtaining an identifier indicating that data frame of the broadcasting signal includes service guide information, decoding and storing the service guide information from the data frame; and outputting a service included in the mobile service data according to the decoded service guide information.

公开(公告)号：US09860016B2

公开(公告)日：2018-01-02

申请号：US15280970

申请日：2016-09-29

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 ,  H04L29/12 ,  H04L29/08 ,  H03M13/27 ,  H03M13/29 ,  H04N21/643

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.

公开(公告)号：US09756366B2

公开(公告)日：2017-09-05

申请号：US15190033

申请日：2016-06-22

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04N21/23614 ,  H04H20/30 ,  H04H20/55 ,  H04H20/57 ,  H04L9/30 ,  H04N21/2347 ,  H04N21/235 ,  H04N21/23605 ,  H04N21/23611 ,  H04N21/2362 ,  H04N21/2383 ,  H04N21/26603 ,  H04N21/6131 ,  H04N21/8126

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：US09756334B2

公开(公告)日：2017-09-05

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: H04N7/12 ,  H04N19/88 ,  H04L1/00 ,  H04L27/02 ,  H04N5/44 ,  H04N21/235 ,  H04N21/236 ,  H04N21/2383 ,  H04N21/434 ,  H04N21/435 ,  H04N21/438 ,  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.

公开(公告)号：US20170245020A1

公开(公告)日：2017-08-24

申请号：US15589470

申请日：2017-05-08

Applicant: LG ELECTRONICS INC.

Inventor： Jong Yeul Suh ,  Jaehyung Song ,  Min Sung Kwak ,  Joon Hui Lee ,  In Hwan Choi ,  Chul Soo Lee ,  Pil Sup Shin

IPC: H04N21/643 ,  H04H20/93 ,  H04N21/478 ,  H04N21/435 ,  H04N21/235

CPC classification number: H04N21/64322 ,  H04H20/93 ,  H04L67/06 ,  H04L67/26 ,  H04N21/2323 ,  H04N21/235 ,  H04N21/2353 ,  H04N21/23614 ,  H04N21/2362 ,  H04N21/237 ,  H04N21/262 ,  H04N21/4345 ,  H04N21/4348 ,  H04N21/435 ,  H04N21/4516 ,  H04N21/4622 ,  H04N21/478 ,  H04N21/6175 ,  H04N21/6437 ,  H04N21/8126 ,  H04N21/84 ,  H04N21/85406

Abstract: A method of processing additional information related to an announced service or content in a Non-Real Time (NRT) service and the broadcast receiver are disclosed herein. A method of providing a Non-Real Time (NRT) service in a broadcasting receiver includes receiving a service map table (SMT) and a first descriptor through a service signaling channel, identifying an image identifier and an image type of an image for an NRT service based upon the first descriptor, receiving the image via a flute session and displaying the image when corresponding service is played, wherein the image is logo or icon data for the NRT service. The method may further include connecting a service signaling channel, parsing the received SMT and the first descriptor, determining whether a service is the NRT service based upon the parsed SMT and storing the received image.

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：US09717082B2

公开(公告)日：2017-07-25

申请号：US14820330

申请日：2015-08-06

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W8/26 ,  H03M13/35 ,  H04H20/30 ,  H04H20/57 ,  H04W4/06 ,  H03M13/09 ,  H03M13/15 ,  H03M13/27 ,  H03M13/29

CPC classification number: H04W4/06 ,  H03M13/09 ,  H03M13/15 ,  H03M13/1515 ,  H03M13/27 ,  H03M13/2906 ,  H03M13/356 ,  H04H20/30 ,  H04H20/57 ,  H04L1/0045 ,  H04L1/0058 ,  H04L1/0075 ,  H04L69/16 ,  H04N21/4382 ,  H04W8/26 ,  H04W72/044

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：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.