公开(公告)号：US11812076B2

公开(公告)日：2023-11-07

申请号：US17876249

申请日：2022-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Sangchul Moon ,  Woosuk Ko ,  Sungryong Hong ,  Jinwoo Kim ,  Jongwoong Shin

IPC: H04L27/26 ,  H04N21/2362 ,  H04L1/00 ,  H04N21/236 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/414 ,  H04N21/434 ,  H04N21/438 ,  H04N21/61 ,  H03M13/11 ,  H03M13/27 ,  H03M13/00 ,  H04B7/0456 ,  H04L5/00

CPC classification number: H04N21/2362 ,  H03M13/1148 ,  H03M13/2792 ,  H03M13/616 ,  H04B7/0456 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0061 ,  H04L1/0071 ,  H04L5/0007 ,  H04L27/2601 ,  H04L27/2627 ,  H04L27/2649 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/23614 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/4381 ,  H04N21/4382 ,  H04N21/6131

Abstract: The present invention provides an apparatus of transmitting broadcast signals, the apparatus including, an encoder for encoding service data, a frame builder for building at least one signal frame by mapping the encoded service data, a modulator for modulating data in the built at least one signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, scheme and a transmitter for transmitting the broadcast signals having the modulated data.

公开(公告)号：USRE49301E1

公开(公告)日：2022-11-15

申请号：US16390128

申请日：2019-04-22

Applicant: LG ELECTRONICS INC.

Inventor： Yonghak Suh ,  Sangchul Moon ,  Jongwoong Shin ,  Woosuk Ko ,  Sungryoung Hong

IPC: H04L27/00 ,  H04L27/26 ,  H04L1/00 ,  H03M13/03 ,  H03M13/11 ,  H03M13/25 ,  H03M13/27 ,  H04H20/33 ,  H03M13/09 ,  H03M13/15 ,  H03M13/29 ,  H04L5/00

Abstract: The present invention provides an apparatus of transmitting broadcast signals. The apparatus includes, an encoder for encoding service data, a bit interleaver for bit interleaving the encoded service data, a mapper for mapping the bit interleaved service data into a plurality of OFDM (Orthogonal Frequency Division Multiplex) symbols to build at least one signal frame, an OFDM modulator for modulating data in the built at least one signal frame by an OFDM scheme and a transmitter for transmitting the broadcast signals having the modulated data.

公开(公告)号：US11043970B2

公开(公告)日：2021-06-22

申请号：US16065542

申请日：2018-02-05

Applicant: LG Electronics Inc.

Inventor： Jongwoong Shin ,  Bonghoe Kim ,  Jinwoo Kim ,  Ilmu Byun

IPC: H03M13/11 ,  H03M13/00 ,  H04L1/00

Abstract: A method for encoding a quasi-cyclic low-density parity-check (LDPC) code according to an embodiment of the present invention may comprise the steps of: generating a multi-edge LDPC code matrix including a high rate code matrix and a single parity check code matrix; and encoding a signal by using the multi-edge LDPC code matrix, wherein the single parity check code matrix includes a first matrix having a non-row-orthogonal structure matrix and a second matrix having a pure row-orthogonal structure, which are concatenated.

公开(公告)号：US10587367B2

公开(公告)日：2020-03-10

申请号：US15971238

申请日：2018-05-04

Applicant: LG ELECTRONICS INC.

Inventor： Jongwoong Shin ,  Woosuk Ko ,  Jaehyung Kim ,  Jongseob Baek ,  Sungryong Hong

IPC: H04L1/00 ,  H04L27/26 ,  H04B1/10 ,  H04L12/18 ,  H04J11/00 ,  H04L1/04 ,  H04L5/00

Abstract: A broadcast signal transmitter includes a first Forward Error Correction (FEC) encoder configured to encode core layer data, a second FEC encoder configured to encode enhanced layer data, an injection level controller configured to control power ratio between the encoded core layer data and the encoded enhanced layer data, a combiner configured to combine the core layer data and the enhanced layer data and to output Layered Division Multiplexing (LDM) data, a power normalizer configured to normalize power of the outputted LDM data, a time interleaver configured to time-interleave the LDM data, a framer configured to generate a signal frame comprising a preamble and the time-interleaved LDM data, the preamble carrying signaling information, and a modulator configured to perform Orthogonal Frequency Division Multiplexing (OFDM) modulation on the generated signal frame.

公开(公告)号：US10411834B2

公开(公告)日：2019-09-10

申请号：US16065504

申请日：2017-06-19

Applicant: LG Electronics Inc.

Inventor： Seunggye Hwang ,  Kijun Kim ,  Soocheol Kyeong ,  Bonghoe Kim ,  Jinwoo Kim ,  Kwangseok Noh ,  Jongwoong Shin ,  Joonkui Ahn ,  Hyangsun You

IPC: H04L1/00 ,  H03M13/13

Abstract: A disclosure of the present specification provides a method for transmitting data by a transmitter. The method may comprise the steps of: when a transport block (TB) is divided into n data blocks, adding additional information after each of the n data blocks; and adding a cyclic redundancy check (CRC) after the last additional information. Here, the CRC may be generated on the basis of the n data blocks, and the n pieces of additional information added after each of data blocks.

公开(公告)号：US10237108B2

公开(公告)日：2019-03-19

申请号：US15823132

申请日：2017-11-27

Applicant: LG ELECTRONICS INC.

Inventor： Yonghak Suh ,  Sangchul Moon ,  Jongwoong Shin ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H04L27/12 ,  H03M13/11 ,  H03M13/27

Abstract: A method for receiving broadcast signals, includes receiving the broadcast signals, demodulating the received broadcast signals by an Orthogonal Frequency Division Multiplex (OFDM) scheme, parsing a signal frame from the demodulated broadcast signals, and bit deinterleaving data in the parsed signal frame, wherein the bit deinterleaving includes block deinterleaving the data with each set of a number of bit groups. The number of bit groups is based on modulation type. When the modulation type is Quadrature Phase Shift Keying (QPSK), the number of bit groups is 2. When the modulation type is 16 Quadrature Amplitude Modulation (QAM), the number of bit groups is 4. When the modulation type is 64 Quadrature Amplitude Modulation (QAM), the number of bit groups is 6. When the modulation type is 256 QAM, the number of bit groups is 8. When the modulation type is 1024 QAM, the number of bit groups is 10.

公开(公告)号：US10097392B2

公开(公告)日：2018-10-09

申请号：US15654329

申请日：2017-07-19

Applicant: LG Electronics Inc.

Inventor： Jongseob Baek ,  Jongwoong Shin ,  Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H03M13/27 ,  H03M13/09 ,  H03M13/11 ,  H03M13/15 ,  H03M13/25 ,  H03M13/29

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an encoder for encoding service data, a mapper for mapping the encoded service data into a plurality of OFDM (Orthogonal Frequency Division Multiplex) symbols to build at least one signal frame, a frequency interleaver for frequency interleaving data in the at least one signal frame by using a different interleaving-seed which is used for every OFDM symbol pair comprised of two sequential OFDM symbols, a modulator for modulating the frequency interleaved data by an OFDM scheme and a transmitter for transmitting the broadcast signals having the modulated data, wherein the different interleaving-seed is generated based on a cyclic shifting value and wherein an interleaving seed is variable based on an FFT size of the modulating.

公开(公告)号：US20180199076A1

公开(公告)日：2018-07-12

申请号：US15842278

申请日：2017-12-14

Applicant: LG ELECTRONICS INC.

Inventor： Sangchul Moon ,  Woosuk Ko ,  Sungryong Hong ,  Jinwoo Kim ,  Jongwoong Shin

IPC: H04N21/2362 ,  H04N21/61 ,  H04L1/00 ,  H04N21/438 ,  H04N21/434 ,  H04N21/414 ,  H04N21/2383 ,  H04N21/2381 ,  H04N21/236 ,  H04L27/26

Abstract: The present invention provides an apparatus of transmitting broadcast signals, the apparatus including, an encoder for encoding service data, a frame builder for building at least one signal frame by mapping the encoded service data, a modulator for modulating data in the built at lease one signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, scheme and a transmitter for transmitting the broadcast signals having the modulated data.

公开(公告)号：US10009079B2

公开(公告)日：2018-06-26

申请号：US15703587

申请日：2017-09-13

Applicant: LG ELECTRONICS INC.

Inventor： Sangchul Moon ,  Woosuk Ko ,  Sungryong Hong ,  Jinwoo Kim ,  Jongwoong Shin

IPC: H04B7/02 ,  H04B7/04 ,  H04L5/00 ,  H04L1/00 ,  H04N7/08 ,  H04L27/26 ,  H04N21/236 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/414 ,  H04N21/434 ,  H04N21/438 ,  H04N21/61 ,  H04B7/0413

CPC classification number: H04B7/0478 ,  H04B7/0413 ,  H04L1/0041 ,  H04L1/0047 ,  H04L1/0057 ,  H04L1/0063 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/2601 ,  H04L27/2637 ,  H04L27/2646 ,  H04N7/08 ,  H04N21/23614 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/4381 ,  H04N21/4382 ,  H04N21/6131 ,  H05K999/99

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, encoding Data Pipe, DP, data according to a code rate, wherein the encoding further includes Low-Density Parity-Check, LDPC, encoding the DP data, Bit interleaving the LDPC 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 built signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, method and transmitting the broadcast signals having the modulated data.

公开(公告)号：US20180115450A1

公开(公告)日：2018-04-26

申请号：US15800989

申请日：2017-11-01

Applicant: LG Electronics Inc.

Inventor： Sangchul Moon ,  Woosuk Ko ,  Sungryong Hong ,  Jinwoo Kim ,  Jongwoong Shin

IPC: H04L27/26 ,  H04L1/00 ,  H04H20/30 ,  H04N21/434 ,  H04N21/2383 ,  H04N21/2362 ,  H03M13/00 ,  H04N21/438

CPC classification number: H04L27/2627 ,  H03M13/616 ,  H04H20/30 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0061 ,  H04L27/2649 ,  H04N21/2362 ,  H04N21/2383 ,  H04N21/4345 ,  H04N21/4382

Abstract: The present invention provides a method of transmitting broadcast signals, the method including, encoding service data, building at least one signal frame by mapping the encoded service data, modulating data in the built at least one signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, scheme and transmitting the broadcast signals having the modulated data.