公开(公告)号：US11343130B2

公开(公告)日：2022-05-24

申请号：US17164176

申请日：2021-02-01

Applicant: LG Electronics Inc.

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

IPC: H04L1/04 ,  H04L27/26 ,  H04L5/00 ,  H04L1/00 ,  H04W72/00

Abstract: A broadcast signal receiver includes a tuner for tuning a broadcast signal, a reference signal detector for detecting pilots from the tuned broadcast signal, a de-framer for de-framing a signal frame of the broadcast signal and deriving service data based on a number of carriers of the signal frame, and a decoder for performing error correction process on the derived service data.

公开(公告)号：US10911275B2

公开(公告)日：2021-02-02

申请号：US16715941

申请日：2019-12-16

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/04 ,  H04L27/26 ,  H04L1/00 ,  H04L25/02

Abstract: A broadcast signal receiver is disclosed. A broadcast signal receiver according to an embodiment of the present invention comprises a synchronization & demodulation module performing signal detection and OFDM demodulation on a received broadcast signal; a frame parsing & deinterleaving module performing parsing and deinterleaving of a signal frame of the broadcast signal; a demapping & decoding module performing conversion of data of at least one Physical Layer Pipe (PLP) of the broadcast signal into the bit domain and FEC decoding of the converted PLP data; and an output processing module outputting a data stream by receiving the at least one PLP data.

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：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：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：US09838235B2

公开(公告)日：2017-12-05

申请号：US14918350

申请日：2015-10-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/00 ,  H04L1/00 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04L27/265 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0071 ,  H04L5/0023 ,  H04L5/005 ,  H04L27/2602 ,  H04L27/2607 ,  H04L27/2611 ,  H04L27/2613 ,  H04L27/2647 ,  H04L27/2655 ,  H04L27/2665 ,  H04W72/005

Abstract: A broadcast signal transmitter is disclosed. A broadcast signal transmitter according to the present invention comprises an input formatting module configured to de-multiplex an input stream into at least one PLP (Physical Layer Pipe); a BICM (Bit Interleaved Coded Modulation) module configured to perform error correction processing on the data of the least one PLP; a frame building module configured to generate a signal frame including the at least one PLP; a waveform generating module configured to generate the broadcast signal by inserting a preamble into the signal frame and performing OFDM modulation.

公开(公告)号：US09780957B2

公开(公告)日：2017-10-03

申请号：US14158573

申请日：2014-01-17

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: H04J3/24 ,  H04L12/18 ,  H04N21/236 ,  H04N21/434 ,  H04N21/2383 ,  H04N21/438 ,  H04L12/931 ,  H04J13/00 ,  H04L1/00 ,  H04L27/26

CPC classification number: H04L12/18 ,  H04J13/0062 ,  H04L1/0072 ,  H04L27/2613 ,  H04L49/201 ,  H04N21/236 ,  H04N21/2383 ,  H04N21/434 ,  H04N21/4382

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The method for transmitting broadcast signals including encoding DP (Data Pipe) data carrying at least one service, mapping the encoded DP data onto constellations, time interleaving the mapped DP data, building a signal frame including the time interleaved DP data, modulating data in the built signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme, and transmitting the broadcast signals having the modulated data, wherein the broadcast signals are carried in consecutive super frames, wherein each of the super frames includes multiplexed signal frames for different service in a time domain, wherein the signal frame includes a preamble located at the beginning of the at least one signal frame, wherein the preamble includes signaling information for identifying the signal frame.

公开(公告)号：US09699012B2

公开(公告)日：2017-07-04

申请号：US15217644

申请日：2016-07-22

Applicant: LG ELECTRONICS INC.

Inventor： Chulkyu Mun ,  Jongseob Baek ,  Byounggill Kim ,  Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/00 ,  H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H04W4/06

CPC classification number: H04L27/2602 ,  H03M13/156 ,  H03M13/6519 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0048 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0071 ,  H04L1/0072 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/2627 ,  H04L27/2628 ,  H04L27/265 ,  H04W4/06

Abstract: An apparatus for transmitting a broadcast signal includes an input formatting module configured to de-multiplex an input stream into at least one Data Pipe (DP); a BICM module configured to perform error correction processing on data of the at least one DP; a signal frame building module configured to map the data of the DP to symbols within a signal frame; and an OFDM generation module configured to generate a transmission broadcast signal by inserting a preamble into the signal frame and performing OFDM modulation. The OFDM generation module includes a pilot signal insertion module configured to insert a pilot signal including Continual Pilots (CP) and Scattered Pilots (SP) into the transmission broadcast signal, and the CPs are inserted into every symbol of the signal frame, and location and number of the CPs are determined based on a Fast Fourier Transform (FFT) size.

公开(公告)号：US09686029B2

公开(公告)日：2017-06-20

申请号：US15182481

申请日：2016-06-14

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob Baek ,  Kookyeon Kwak ,  Byounggill Kim ,  Woochan Kim ,  Sungryong Hong ,  Woosuk Ko ,  Sangchul Moon ,  Chulkyu Mun ,  Jongwoong Shin ,  Jaehyung Kim

IPC: H04L27/26 ,  H04H20/71 ,  H04N21/2383 ,  H04N21/438 ,  H04H60/07 ,  H04L5/00 ,  H04L1/00 ,  H04H60/73

CPC classification number: H04H20/71 ,  H04H60/07 ,  H04H60/73 ,  H04L1/0071 ,  H04L5/0007 ,  H04L27/2602 ,  H04L27/2627 ,  H04L27/2649 ,  H04N21/2383 ,  H04N21/4382

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, wherein the each of a plurality of DPs carries at least one service component, a mapper for mapping the encoded DP data onto constellations, a time interleaver for time interleaving the mapped DP data at DP level by skipping cells having zero values of the DP data, 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：US09674022B2

公开(公告)日：2017-06-06

申请号：US14918323

申请日：2015-10-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/14 ,  H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H04W72/00

CPC classification number: H04L27/265 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0071 ,  H04L5/0023 ,  H04L5/005 ,  H04L27/2602 ,  H04L27/2607 ,  H04L27/2611 ,  H04L27/2613 ,  H04L27/2647 ,  H04L27/2655 ,  H04L27/2665 ,  H04W72/005

Abstract: A broadcast signal receiver is disclosed. A broadcast signal receiver according to the present invention comprises a synchronization/demodulation module configured to perform signal detection and OFDM demodulation on a received broadcast signal; a frame parsing module configured to derive service data by parsing a signal frame of the received broadcast signal; a demapping and decoding module configured to convert an input signal into bit domain and to perform deinterleaving; and an output processing module configured to receive service data and to output a data stream.