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公开(公告)号：US09853850B2
公开(公告)日：2017-12-26
申请号：US14995764
申请日：2016-01-14
Applicant: LG ELECTRONICS INC.
Inventor： Jaehyung Kim , Woosuk Ko , Sungryong Hong
IPC: H04N21/81 , H04L1/00 , H03M13/00 , H04N21/6379 , H04N21/6336 , H04L27/26 , H04H20/59 , H04L5/00
CPC classification number: H04L27/2649 , H03M13/6522 , H04H20/59 , H04L1/0041 , H04L1/0045 , H04L1/0057 , H04L1/0071 , H04L1/0075 , H04L5/0053 , H04L27/2602 , H04L27/2626 , H04L27/2656 , H04L2001/0093 , H04N21/2383 , H04N21/4382 , H04N21/6336 , H04N21/6379 , H04N21/814
Abstract: A broadcast signal transmitter is discussed. A broadcast signal transmitter according to an embodiment of the present invention comprises an input formatting module performing baseband formatting and outputting at least one Physical Layer Pipe (PLP) data; a BICM module error-correction processing the PLP data; a framing & interleaving module interleaving the PLP data and generating a signal frame; and a waveform generating module inserting a preamble into the signal frame and generating a broadcast signal by performing OFDM modulation.
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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
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.
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公开(公告)号：US09832056B2
公开(公告)日：2017-11-28
申请号：US15379150
申请日：2016-12-14
Applicant: LG Electronics Inc.
Inventor： Jinwoo Kim , Jaehyung Kim , Sungryong Hong , Jaeho Hwang , Jongwoong Shin , Woosuk Ko
CPC classification number: H04L27/2602 , H03M13/09 , H03M13/1102 , H03M13/152 , H04L1/0013 , H04L1/0041 , H04L1/0042 , H04L1/0045 , H04L1/0058 , H04L1/0061 , H04L1/0064 , H04L1/0068 , H04L1/0071 , H04L5/0023 , H04L5/0053 , H04L27/2601 , H04N5/00 , H04N5/067
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 corresponding to each of a plurality of data transmission units, an encoder for encoding physical signaling data by a shortening scheme and a puncturing scheme, a mapper for mapping the encoded service data onto constellations, a frame builder for building at least one signal frame including preamble 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.
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公开(公告)号：US20170331657A1
公开(公告)日：2017-11-16
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
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.
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公开(公告)号：US20170317867A1
公开(公告)日：2017-11-02
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
CPC classification number: H04L27/2602 , H03M13/09 , H03M13/1102 , H03M13/152 , H03M13/255 , H03M13/27 , H03M13/271 , H03M13/2742 , H03M13/2778 , H03M13/2906 , H04L1/0041 , H04L1/0045 , H04L1/0071 , H04L1/0083 , H04L5/0053 , H04L27/2605 , H04L27/2626 , H04L27/2627 , H04L27/2634 , H04L27/265 , H04L2001/0093
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.
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Patent Agency Ranking
公开(公告)号：US09800390B2
公开(公告)日：2017-10-24
申请号：US14465394
申请日：2014-08-21
Applicant: LG Electronics Inc.
Inventor： Byounggill Kim , Jaehyung Kim , Woosuk Ko , Sungryong Hong
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.
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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.
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公开(公告)号：US09774925B2
公开(公告)日：2017-09-26
申请号：US15419489
申请日：2017-01-30
Applicant: LG ELECTRONICS INC.
Inventor： Woochan Kim , Sungryong Hong , Woosuk Ko , Jaeho Hwang , Byounggill Kim , Jaehyung Kim
IPC: H04N21/81 , H04N21/2383 , H04N21/438 , H04N21/61 , H04L29/06 , H04N7/08 , H04N5/38
CPC classification number: H04N21/814 , H04L69/22 , H04N5/38 , H04N7/08 , H04N21/2383 , H04N21/4382 , H04N21/6112 , H04N21/615
Abstract: A method for transmitting a broadcast signal, the method includes encoding data pipe (DP) data corresponding to each of a plurality of DPs; mapping the encoded DP data to data symbols to generate at least one signal frame; modulating data in the at least one signal frame using an orthogonal frequency division multiplex (OFDM) scheme; inserting a preamble at a beginning of each of the at least one signal frame in a time domain; and transmitting a broadcast signal having the preamble and the modulated data of the at least one signal frame, wherein the preamble includes a wake-up indicator which wakes up a receiver to decode a DP for an emergency alert table (EAT) and acquire the EAT.
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公开(公告)号：US09735902B2
公开(公告)日：2017-08-15
申请号：US15283921
申请日：2016-10-03
Applicant: LG Electronics Inc.
Inventor： Woochan Kim , Sungryong Hong , Woosuk Ko , Jaeho Hwang , Byounggill Kim , Jaehyung Kim
CPC classification number: H04H20/59 , H04B7/0413 , H04L12/1895 , H04L27/2601 , H04L27/261 , H04L69/22 , H04L69/323 , H04W4/90
Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The method for transmitting broadcast signals includes encoding PLP data; building at least one signal frame by mapping the encoded PLP data; and modulating data in the built signal frame by OFDM method and transmitting a broadcast signal having the modulated data, wherein the signal frame includes a preamble having a preamble symbol and a guard interval, wherein the guard interval is generated by using a sequence and the preamble symbol.
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公开(公告)号：US09705723B2
公开(公告)日：2017-07-11
申请号：US15061458
申请日：2016-03-04
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
CPC classification number: H04L27/263 , H03M13/00 , H04H20/42 , H04H60/11 , H04L1/0041 , H04L1/0052 , H04L1/0058 , H04L1/0065 , H04L1/0071 , H04L1/0075 , H04L5/0048 , H04L12/18 , H04L27/2602 , H04L27/2613 , H04L27/265
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.
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