公开(公告)号：US10181929B2

公开(公告)日：2019-01-15

申请号：US15689805

申请日：2017-08-29

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: H04L1/00 ,  H04L1/06 ,  H04L27/26 ,  H04L1/08

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：US10009147B2

公开(公告)日：2018-06-26

申请号：US15449530

申请日：2017-03-03

Applicant: LG ELECTRONICS INC.

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

IPC: H03D1/04 ,  H04L1/00 ,  H04L27/26 ,  H04B1/10 ,  H04L12/18 ,  H04J11/00 ,  H04L1/04 ,  H04L5/00

CPC classification number: H04L1/0071 ,  H04B1/10 ,  H04J11/004 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0052 ,  H04L1/007 ,  H04L1/0075 ,  H04L1/04 ,  H04L5/0023 ,  H04L5/005 ,  H04L12/18 ,  H04L27/2613 ,  H04L27/2627 ,  H04L27/2647 ,  H04L27/2649

Abstract: A broadcast signal receiver is provided. The broadcast signal receiver comprises a demodulator configured to demodulate a received broadcast signal, a frame parser configured to parse a signal frame of the demodulated broadcast signal, the signal frame comprising a preamble and Layered Division Multiplexing (LDM) data, and the preamble carrying signaling information, a time deinterleaver configured to time deinterleave the LDM data, a first demapping/decoding unit configured to obtain core layer data by demapping and Forward Error Correction (FEC)-decoding the LDM data, an interference removal unit configured to remove the core layer data from the LDM data and to output enhanced layer data, a second demapping/decoding unit configured to demap and FEC-decode the enhanced layer data, and an output processor configured to process at least one of the core layer data or the enhanced layer data and to output a data stream.

公开(公告)号：US09948444B2

公开(公告)日：2018-04-17

申请号：US15692556

申请日：2017-08-31

Applicant: LG Electronics Inc.

Inventor： Byounggill Kim ,  Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L5/00 ,  H04L27/26 ,  H04H20/33 ,  H04H20/59 ,  H04H20/42

CPC classification number: H04L5/0092 ,  H04H20/33 ,  H04H20/423 ,  H04H20/59 ,  H04L5/0048 ,  H04L27/2613

Abstract: 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, 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, a transmitter for transmitting the broadcast signals carrying the at least one modulated signal frame, wherein each of the at least one signal frame includes a preamble having signaling data, wherein the signaling data includes size of FFT, information of whether the signal frame including EAC message or not and information relating to the service data of the signal frame.

公开(公告)号：US09847898B2

公开(公告)日：2017-12-19

申请号：US15416754

申请日：2017-01-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/12 ,  H04L27/26 ,  H04L1/00 ,  H04L7/027 ,  H04L5/00

CPC classification number: H04L27/2626 ,  H04L1/0009 ,  H04L1/0047 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0065 ,  H04L1/007 ,  H04L1/0071 ,  H04L1/0072 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0048 ,  H04L7/0278 ,  H04L27/2614 ,  H04L2001/0093

Abstract: The present invention provides a method for transmitting a broadcast signal. The method for transmitting a broadcast signal according to the present invention may comprise the steps of: encoding data pipe (DP) data corresponding to each of a plurality of DPs which transmit at least one service or service component; generating at least one signal frame by mapping the encoded DP data to data symbols; modulating data present in the at least one signal frame by means of an OFDM scheme; and transmitting a broadcast signal including the modulated data.

公开(公告)号：US09838176B2

公开(公告)日：2017-12-05

申请号：US14591736

申请日：2015-01-07

Applicant: LG ELECTRONICS INC.

Inventor： Byounggill Kim ,  Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H04J3/24 ,  H04L5/00 ,  H04L27/26 ,  H04L1/08 ,  H04L1/00 ,  H04L27/00 ,  H04L1/06

CPC classification number: H04L5/0046 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/06 ,  H04L1/08 ,  H04L5/0053 ,  H04L27/0008 ,  H04L27/2601 ,  H04L27/2628 ,  H04L27/265

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, a frame builder for building at least one signal frame included in a super frame, wherein each of signal frames includes the encoded service data and the encoded signaling data, a modulator for modulating the at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme, wherein each of the modulated signal frame includes a preamble having basic transmission parameters, wherein a length of the preamble is extendable and a transmitter for transmitting the broadcast signals carrying the at least one modulated signal frame.

公开(公告)号：US09800446B2

公开(公告)日：2017-10-24

申请号：US15087670

申请日：2016-03-31

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/26 ,  H04B1/00 ,  H04B7/00

CPC classification number: H04L27/2627 ,  H04B1/00 ,  H04B7/00 ,  H04L5/0048 ,  H04L27/22 ,  H04L27/2607 ,  H04L27/2608 ,  H04L27/2614 ,  H04L27/2626 ,  H04L27/2647 ,  H04L27/2649

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The method for transmitting broadcast signals, the method comprising encoding service data, encoding signaling data, building at least one signal frame including the encoded service data and the encoded signaling data; modulating data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and transmitting the broadcast signals having the modulated data, wherein the modulating step includes performing a power normalization for each OFDM symbol in a time domain.

公开(公告)号：US09742604B2

公开(公告)日：2017-08-22

申请号：US15014838

申请日：2016-02-03

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/22 ,  H04L27/26 ,  H04L1/00

CPC classification number: H04L27/2601 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0071 ,  H04L1/0075 ,  H04L25/0232 ,  H04L27/2611 ,  H04L27/2613 ,  H04L27/265 ,  H04L27/2656 ,  H04L27/2662 ,  H04L27/2666 ,  H04L2001/0093

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：US09723341B2

公开(公告)日：2017-08-01

申请号：US15025055

申请日：2014-09-25

Applicant: LG ELECTRONICS INC.

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

IPC: H04N7/173 ,  H04N21/2383 ,  H04N21/2389

CPC classification number: H04N21/2383 ,  H04B7/0413 ,  H04H20/33 ,  H04L27/2602 ,  H04L27/2618 ,  H04N21/2389

Abstract: The present invention relates to an apparatus for transmitting broadcast signals, an apparatus for receiving broadcast signals and methods for transmitting and receiving broadcast signals. The method of transmitting broadcast signals includes encoding data corresponding to each of data transmission channel which carries at least one service data or service component data, building at least one signal frame including the encoded data, modulating the at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme; and transmitting the broadcast signals carrying the at least one modulated signal frame.

公开(公告)号：US09722840B2

公开(公告)日：2017-08-01

申请号：US15015844

申请日：2016-02-04

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/14 ,  H04L27/26 ,  H04L12/18 ,  H04L1/00 ,  H03M13/25 ,  H03M13/27 ,  H03M13/29 ,  H03M13/09 ,  H03M13/11 ,  H03M13/15

CPC classification number: H04L27/2602 ,  H03M13/09 ,  H03M13/1102 ,  H03M13/152 ,  H03M13/255 ,  H03M13/2707 ,  H03M13/271 ,  H03M13/2906 ,  H04L1/0004 ,  H04L1/001 ,  H04L1/0025 ,  H04L1/0041 ,  H04L1/0052 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0071 ,  H04L5/0091 ,  H04L12/18 ,  H04L12/189 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2628 ,  H04L27/265

Abstract: Disclosed herein is a broadcast signal receiver. A broadcast signal receiver according to an embodiment of the present invention includes a synchronization/demodulation module configured to perform signal 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 perform FEC decoding on the data, and an output processing module configured to receive the data of the at least one PLP and to output a data stream.

公开(公告)号：US09621395B2

公开(公告)日：2017-04-11

申请号：US15091379

申请日：2016-04-05

Applicant: LG ELECTRONICS INC.

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

IPC: H03D1/04 ,  H04L27/26 ,  H04B1/10 ,  H04L12/18 ,  H04L1/00

CPC classification number: H04L1/0071 ,  H04B1/10 ,  H04J11/004 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0052 ,  H04L1/007 ,  H04L1/0075 ,  H04L1/04 ,  H04L5/0023 ,  H04L5/005 ,  H04L12/18 ,  H04L27/2613 ,  H04L27/2627 ,  H04L27/2647 ,  H04L27/2649

Abstract: Disclosed herein is a broadcast signal receiver. A broadcast signal receiver according to an embodiment of the present invention includes a synchronization and demodulation unit configured to perform signal detection and OFDM demodulation on a received signal, a frame parser configured to parse the signal frame of the received signal, a time deinterleaving unit configured to deinterleave LDM data, a first demapping/decoding unit configured to obtain the data of a core layer by demapping and FEC-decoding the LDM data, an interference removal unit configured to remove the core layer data from the LDM data and to output the data of an enhanced layer, and a second demapping/decoding unit configured to demap and FEC-decode the enhanced layer data.