公开(公告)号：US10602319B2

公开(公告)日：2020-03-24

申请号：US15926389

申请日：2018-03-20

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung Kim ,  Woosuk Ko ,  Chulkyu Mun ,  Sungryong Hong

IPC: H04W4/06 ,  H04L27/26 ,  H04W52/32 ,  H04L5/00 ,  H04W52/54

Abstract: A broadcast signal receiver includes a tuner configured to tune a broadcast signal, a pilot detector configured to detect pilots comprised in the tuned broadcast signal, a de-framer configured to de-frame a signal frame of the broadcast signal and to extract Physical Layer Pipe (PLP) data, and a decoder configured to decode the extracted PLP data.

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：US10334295B2

公开(公告)日：2019-06-25

申请号：US16011038

申请日：2018-06-18

Applicant: LG ELECTRONICS INC.

Inventor： Chulkyu Mun ,  Jaehyung Kim ,  Hochul Jung ,  Woosuk Ko ,  Sungryong Hong

IPC: H04N7/173 ,  H04N21/2383 ,  H04N21/2389 ,  H04L27/26 ,  H04H20/33 ,  H04B7/0413

Abstract: A method for transmitting broadcast signals by an apparatus for transmitting broadcast signals, the method includes encoding data which is carried by a Data Pipe, DP; bit interleaving the encoded data; Multiple Input Multiple Output, MIMO, processing the bit interleaved data; time interleaving the MIMO processed data; encoding signaling data; building at least one signal frame including signaling symbols having the encoded signaling data and data symbols having the time interleaved data; modulating data of the at least one signal frame by an Orthogonal Frequency Division Multiplex (OFDM) scheme; performing Peak to Average Power Ratio (PAPR) reduction for the modulated data using a tone reservation algorithm based on a Fast Fourier Transform (FFT) size. In addition, sets of reserved carriers for the PAPR reduction are used in the signaling symbols and the data symbols; and transmitting broadcast signals including the PAPR reduction performed data, further a set of reserved carriers for the signaling symbols is different from a set of reserved carriers for the data symbols.

公开(公告)号：US10158513B2

公开(公告)日：2018-12-18

申请号：US15615663

申请日：2017-06-06

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08 ,  H04L27/26 ,  H04L5/00 ,  H04L12/18 ,  H04H20/42 ,  H04H60/11

Abstract: Disclosed herein is a broadcast signal receiver. The broadcast signal receiver according to an embodiment of the present invention includes a synchronization and demodulation module configured to perform detection and OFDM demodulation on a received broadcast signal, a frame parsing and deinterleaving module configured to parse and deinterleave the signal frame of the broadcast signal, a demapping and decoding module configured to convert the data of at least one Physical Layer Pipe (PLP) of the broadcast signal into a bit domain and to FEC-decode the PLP data, and an output processing module configured to receive the data of the at least one PLP and to output the received data in a data stream form.

公开(公告)号：US10116481B2

公开(公告)日：2018-10-30

申请号：US15061168

申请日：2016-03-04

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H04L12/18 ,  H04H20/42 ,  H04H60/11

Abstract: Disclosed herein is a broadcast signal transmitter. The broadcast signal transmitter according to an embodiment of the present invention includes an input formatting module configured to perform baseband formatting and to output at least one Physical Layer Pipe (PLP) data, a BICM module configured to perform error-correction processing on the PLP data, a framing and interleaving module configured to interleave the PLP data and to generate a signal frame, and a waveform generation module configured to insert a preamble into the signal frame and to generate a broadcast signal by OFDM-modulate the signal frame.

公开(公告)号：US10103829B2

公开(公告)日：2018-10-16

申请号：US15398281

申请日：2017-01-04

Applicant: LG ELECTRONICS INC.

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

IPC: H04H20/44 ,  H04L1/00 ,  H04L5/00 ,  H04B7/0413

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, formatting input streams into Data Pipe, DP, data; Low-Density Parity-Check, LDPC, encoding the DP data according to a code rate; bit interleaving the LDPC encoded DP data; mapping the bit interleaved DP data onto constellations according to one of QAM (Quadrature Amplitude Modulation), NUQ (Non-Uniform QAM) or NUC (Non-Uniform Constellation); Multi-Input Multi-Output, MIMO, encoding the mapped DP data by using a MIMO encoding matrix having a MIMO encoding parameter; building at least one signal frame by mapping the MIMO 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：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：US10057098B2

公开(公告)日：2018-08-21

申请号：US15723979

申请日：2017-10-03

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob Baek ,  Woosuk Ko ,  Sungryong Hong ,  Jaehyung Kim ,  Byeongkook Jeong

IPC: H04L27/00 ,  H04L27/26 ,  H04L1/00 ,  H04N19/30 ,  H03M13/27 ,  H04L5/00 ,  H04L1/06

CPC classification number: H04L27/2602 ,  H03M13/1102 ,  H03M13/152 ,  H03M13/255 ,  H03M13/2707 ,  H03M13/2721 ,  H03M13/2906 ,  H03M13/618 ,  H03M13/6362 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0071 ,  H04L1/06 ,  H04L5/0007 ,  H04L5/0023 ,  H04L27/26 ,  H04L2001/0093 ,  H04N19/30

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an encoder for encoding DP (Data Pipe) data corresponding to each of a plurality of DPs, a mapper for mapping the encoded DP data onto constellations, a time interleaver for time interleaving the mapped DP data at DP level, a frame builder for building at least one signal frame including the time interleaved DP data, a modulator for modulating data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter for transmitting the broadcast signals having the modulated data.

公开(公告)号：US10020904B2

公开(公告)日：2018-07-10

申请号：US15406395

申请日：2017-01-13

Applicant: LG Electronics Inc.

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

IPC: H04L27/28 ,  H04H20/72 ,  H04L1/00 ,  H04L27/26

CPC classification number: H04H20/72 ,  H04B7/0413 ,  H04L1/0071 ,  H04L27/2601 ,  H04L27/2626 ,  H04L27/2627 ,  H04L27/2637 ,  H04L27/2647 ,  H04L27/2649 ,  H04L27/265

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an encoder encoding service data, a time interleaver interleaving the encoded service data, a mapper mapping the interleaved service data into a plurality of OFDM (Orthogonal Frequency Division Multiplex) symbols to build at least one signal frame, a frequency interleaver 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, wherein the frequency interleaver calculates an interleaving address for the different interleaving-seed based on a main-PRBS sequence and a cyclic shifting value, a modulator modulating the frequency interleaved data by an OFDM scheme and a transmitter transmitting the broadcast signals having the modulated data, wherein an interleaving-seed is generated based on a cyclic shift value and an FFT size of the modulating.

公开(公告)号：US09998316B2

公开(公告)日：2018-06-12

申请号：US15614109

申请日：2017-06-05

Applicant: LG Electronics Inc.

Inventor： Jongseob Baek ,  Byeongkook Jeong ,  Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/06 ,  H04L27/26 ,  H04L1/00

CPC classification number: H04L27/265 ,  H03M13/00 ,  H03M13/152 ,  H03M13/255 ,  H03M13/27 ,  H03M13/2778 ,  H03M13/2906 ,  H04L1/0041 ,  H04L1/0058 ,  H04L1/0061 ,  H04L1/0071 ,  H04L1/0075 ,  H04L1/04 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0053 ,  H04L27/2602 ,  H04L27/2607 ,  H04L27/2626 ,  H04L27/2627 ,  H04L27/2647 ,  H04L27/2649 ,  H04L2001/0093

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