公开(公告)号：US20180109407A1

公开(公告)日：2018-04-19

申请号：US15844148

申请日：2017-12-15

Applicant: LG ELECTRONICS INC.

Inventor： Byounggill KIM ,  Jaehyung Kim ,  Jaeho Hwang ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04L27/2613 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/2628 ,  H04L2001/0093 ,  H04W4/06

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes encoding service data of Physical Layer Pipes (PLPs); bit interleaving the encoded service data; building at least one signal frame including the bit interleaved service data; and modulating data in the at least one signal frame by Orthogonal Frequency Division Multiplexing (OFDM) method; inserting a preamble at a beginning of each of the at least one signal frame after the modulating step; and transmitting the broadcast signals having the modulated data, wherein the preamble includes two OFDM symbols and each of the two OFDM symbols is generated by a sequence multiplication, and wherein each of the two OFDM symbols in the preamble includes information for an emergency alert.

公开(公告)号：US09948489B2

公开(公告)日：2018-04-17

申请号：US14992496

申请日：2016-01-11

Applicant: LG ELECTRONICS INC.

Inventor： Byeongkook Jeong ,  Woosuk Ko ,  Youngjin Hong ,  Sungryong Hong ,  Jaeho Hwang

IPC: H04L27/00 ,  H04L27/36 ,  H03K9/02 ,  H03D1/24 ,  H04L27/34 ,  H04B7/0413 ,  H04B7/06 ,  H04H20/71 ,  H04L1/00 ,  H04L27/26 ,  H03M13/11 ,  H03M13/27 ,  H04L27/38 ,  H04L5/00

CPC classification number: H04L27/3444 ,  H03M13/1102 ,  H03M13/1165 ,  H03M13/152 ,  H03M13/253 ,  H03M13/255 ,  H03M13/2707 ,  H03M13/2778 ,  H03M13/2792 ,  H03M13/2906 ,  H04B7/0413 ,  H04B7/0615 ,  H04H20/71 ,  H04L1/00 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0071 ,  H04L1/0075 ,  H04L5/0023 ,  H04L27/0008 ,  H04L27/26 ,  H04L27/2602 ,  H04L27/2627 ,  H04L27/2697 ,  H04L27/3416 ,  H04L27/361 ,  H04L27/38 ,  H04L2001/0093

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, processing input streams into plural PLPs; encoding data of the each PLPs according to code rates, wherein the encoding data of the each PLPs further includes, encoding data of at least one PLP with LDPC codes, bit interleaving the LDPC encoded data of the PLP, mapping the bit interleaved data onto a set of constellations according to the code rate, MIMO encoding the mapped data, and time interleaving the MIMO encoded data; building at least one signal frame by mapping the encoded data of the each PLPs; and modulating data in the built signal frame by OFDM method and transmitting the broadcast signals having the modulated data, wherein the bit interelaved data of each PLPs are mapped by using either QAM, NUQ, or NUC.

公开(公告)号：US09929831B2

公开(公告)日：2018-03-27

申请号：US14156966

申请日：2014-01-16

Applicant: LG ELECTRONICS INC.

Inventor： Byounggill Kim ,  Woochan Kim ,  Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong ,  Chulkyu Mun ,  Jinyong Choi ,  Jaeho Hwang ,  Jongseob Baek ,  Kookyeon Kwak ,  Byeongkook Jeong

IPC: H04B7/02 ,  H04L1/02 ,  H04L1/00 ,  H04L1/06 ,  H04L27/26 ,  H04L1/08

CPC classification number: H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0072 ,  H04L1/0625 ,  H04L1/0631 ,  H04L1/08 ,  H04L27/2607 ,  H04L27/2613 ,  H04L2001/0093

Abstract: The object of the present invention can be achieved by providing a method of transmitting broadcast signals including encoding Data Pipe, DP, data, wherein the encoding further includes Forward Error Correction, FEC, encoding the DP data, Bit interleaving the FEC encoded DP data and mapping the bit interleaved DP data onto constellations; building at least one signal frame by mapping the encoded DP data; and modulating data in the at least one built signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, method and transmitting the broadcast signals having the modulated data, wherein each of the at least one signal frame includes at least one preamble having repeated at least one signaling information.

公开(公告)号：US09917717B2

公开(公告)日：2018-03-13

申请号：US15441796

申请日：2017-02-24

Applicant: LG ELECTRONICS INC.

Inventor： Jaeho Hwang ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/26 ,  H04L29/06 ,  H04L5/00

CPC classification number: H04L1/0006 ,  H04H20/00 ,  H04H20/33 ,  H04H20/423 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0065 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L12/18 ,  H04L12/1881 ,  H04L27/2602 ,  H04L27/2649 ,  H04L69/22

Abstract: A method is provided for receiving broadcast signals. The broadcast signals are received. The received broadcast signals are demodulated by an Orthogonal Frequency Division Multiplex (OFDM) scheme, a signal frame is parsed from the demodulated broadcast signals, data is decoded in the parsed signal frame to output baseband packets, the baseband packets are output-processed to output link layer packets, and the link layer packets are de-encapsulated to output Transport Stream (TS) packets by inserting a header for each TS packet of which a header is deleted based on information of a header of the link layer packets.

公开(公告)号：US09876664B2

公开(公告)日：2018-01-23

申请号：US14692889

申请日：2015-04-22

Applicant: LG Electronics Inc.

Inventor： Jaeho Hwang ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2627 ,  H04L1/0008 ,  H04L5/0053 ,  H04L27/2602 ,  H04N21/23611

Abstract: Disclosed is a method for transmitting a broadcast signal. The method comprises formatting input streams with multiple data transmission channels, and the formatting step comprises adding a header indicating a format of a payload of the BBF.

公开(公告)号：US20170230162A1

公开(公告)日：2017-08-10

申请号：US15443383

申请日：2017-02-27

Applicant: LG Electronics Inc.

Inventor： Byounggill KIM ,  Woochan Kim ,  Jaehyung Kim ,  Sungryong Hong ,  Chulkyu Mun ,  Jinyong Choi ,  Jaeho Hwang ,  Jongseob Baek ,  Kookyeon Kwak ,  Woosuk Ko

IPC: H04L5/00 ,  H04L27/26 ,  H04L29/06

CPC classification number: H04L5/0053 ,  H04B7/0413 ,  H04H20/59 ,  H04H20/72 ,  H04J13/0062 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0026 ,  H04L27/2611 ,  H04L27/2613 ,  H04L27/2627 ,  H04L27/2647 ,  H04L65/4076 ,  H04L65/80

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The method for transmitting broadcast signals comprises encoding DP (data pipe) data carrying at least one service, mapping the encoded DP data onto constellations, time interleaving the mapped DP data, building at least one signal frame including the time interleaved DP data, modulating data in the built at least one signal frame by an OFDM scheme and transmitting the broadcast signals having the modulated data, wherein the at least one signal frame includes emergency alert information.

公开(公告)号：US09712364B2

公开(公告)日：2017-07-18

申请号：US15040469

申请日：2016-02-10

Applicant: LG Electronics Inc.

Inventor： Jongwoong Shin ,  Jinwoo Kim ,  Woosuk Ko ,  Jaeho Hwang ,  Sungryong Hong

IPC: H04L27/26 ,  H04L1/00 ,  H04N5/00 ,  H04N5/067 ,  H04N5/44 ,  H04N21/236 ,  H04N21/2383 ,  H04N21/434 ,  H04N21/438 ,  H04L5/00 ,  H04B7/0413 ,  H04B7/10

CPC classification number: H04L27/2627 ,  H04B7/0413 ,  H04B7/10 ,  H04L1/0057 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/0072 ,  H04L5/0007 ,  H04L27/2626 ,  H04L27/2647 ,  H04L27/2649 ,  H04N5/00 ,  H04N5/067 ,  H04N5/4401 ,  H04N21/23611 ,  H04N21/2383 ,  H04N21/4348 ,  H04N21/4382

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals, the apparatus comprises an encoder for encoding service data corresponding to each of a plurality of data transmission path, wherein each of the data transmission path carries at least one service component, an encoder for encoding signaling data, a frame builder for building at least one signal frame including the encoded service data, a modulator for modulating the at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter for transmitting the broadcast signals carrying the at least one modulated signal frame.

公开(公告)号：US09705718B2

公开(公告)日：2017-07-11

申请号：US15284151

申请日：2016-10-03

Applicant: LG Electronics Inc.

Inventor： Jinwoo Kim ,  Jongwoong Shin ,  Woosuk Ko ,  Jaeho Hwang ,  Sungryong Hong

IPC: H04L27/00 ,  H04L27/26 ,  H04L1/00 ,  H04H20/72 ,  H04H60/07 ,  H04L29/08 ,  H03M13/11 ,  H03M13/25 ,  H03M13/27 ,  H03M13/29 ,  H03M13/00 ,  H04L5/00 ,  H03M13/15

CPC classification number: H04L27/2602 ,  H03M13/1102 ,  H03M13/1165 ,  H03M13/152 ,  H03M13/255 ,  H03M13/271 ,  H03M13/2778 ,  H03M13/2906 ,  H03M13/6356 ,  H03M13/6362 ,  H04H20/72 ,  H04H60/07 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2627 ,  H04L27/2649 ,  H04L69/324 ,  H04L2001/0093

Abstract: An apparatus including an encoder for encoding service data corresponding to each of a plurality of data transmission path, an encoder for encoding signaling data, wherein the signaling data includes static data and dynamic data, a frame builder for building signal frames, wherein each of signal frames includes the encoded service data and the encoded signaling data, wherein each of signal frames belongs to one of the broadcast services, wherein the static data remain constant in the signal frames belonging to the broadcast service in a duration of a super frame and the dynamic data changes by the signal frames, a modulator for modulating the signal frames by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter for transmitting the broadcast signals carrying the modulated signal frames.

公开(公告)号：US20170126448A1

公开(公告)日：2017-05-04

申请号：US15357843

申请日：2016-11-21

Applicant: LG Electronics Inc.

Inventor： Jaeho Hwang ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/26 ,  H04W28/06

CPC classification number: H04L27/2602 ,  H04H20/33 ,  H04H20/42 ,  H04L5/0023 ,  H04L27/2627 ,  H04L27/2649 ,  H04L65/60 ,  H04L65/607 ,  H04N21/20 ,  H04N21/236 ,  H04N21/2381 ,  H04N21/2383 ,  H04W28/065

Abstract: Disclosed herein is a method for sending a broadcast signal. The method includes formatting input streams into multiple data pipes (DPs). Formatting the input streams into the multiple DPs includes splitting the input streams into multiple data streams, deleting a null packet included in a data stream, and forming a baseband frame (BBF) by adding a header to the data stream. The baseband frame includes a deleted null packet (DNP) field indicative of the number of deleted null packets, and the DNP field comprises at least one of a first DNP or a second DNP.

公开(公告)号：US09577859B2

公开(公告)日：2017-02-21

申请号：US14970171

申请日：2015-12-15

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob Baek ,  Byounggill Kim ,  Woochan Kim ,  Jaehyung Kim ,  Sungryong Hong ,  Chulkyu Mun ,  Jinyong Choi ,  Jaeho Hwang ,  Kookyeon Kwak ,  Woosuk Ko

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00

CPC classification number: H03M13/2792 ,  H03M13/1102 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0048 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0071 ,  H04L1/0083 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/2627 ,  H04L2001/0093

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The method for transmitting broadcast signals includes encoding DP data according to a code rate, wherein the encoding further includes LDPC encoding the DP data according to the code rate, bit interleaving the LDPC encoded DP data, mapping the bit interleaved DP data onto constellations, MIMO (Multi Input Multi Output) encoding the mapped DP data, and time interleaving the MIMO encoded DP data; building at least one signal frame by arranging the encoded DP data; and modulating data in the built signal frame by OFDM method and transmitting the broadcast signals having the modulated data, wherein the step of modulating includes inserting CPs in the built signal frame based on a CP set which includes information about locations of CPs, wherein the CP set is defined based on FFT size.

Abstract translation: 公开了一种用于发送广播信号的方法和装置。 用于发送广播信号的方法包括根据码率对DP数据进行编码，其中编码还包括根据码率对DP数据进行LDPC编码，对LDPC编码的DP数据进行比特交织，将位交织的DP数据映射到星座，MIMO （多输入多输出）编码映射的DP数据，以及对MIMO编码的DP数据进行时间交织; 通过布置编码的DP数据构建至少一个信号帧; 以及通过OFDM方法调制内置信号帧中的数据并发送具有调制数据的广播信号，其中调制步骤包括基于包括关于CP位置的信息的CP集合在内建信号帧中插入CP，其中CP 基于FFT大小定义集合。