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公开(公告)号：US10033442B2
公开(公告)日：2018-07-24
申请号：US15051131
申请日：2016-02-23
Applicant: LG Electronics Inc.
Inventor： Jongseob Baek , Woosuk Ko , Sungryong Hong
IPC: H04B7/04 , H04B7/0413 , H04L1/00 , H04L29/06 , H04L27/26
Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for receiving broadcast signals, the apparatus comprises a receiver to receive the broadcast signals, a demodulator to perform demodulation on the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme, wherein the broadcast signals include at least one signal frame, wherein a signal frame includes a preamble and at least one sub-frame, a frequency de-interleaver to frequency de-interleave the demodulated broadcast signals by using a different interleaving sequence, wherein the different interleaving sequence is used for data at least one of the preamble and a sub-frame, wherein the different interleaving sequence is generated based on an interleaving sequence and a symbol offset, a frame parser to parse the at least one signal frame from the frequency de-interleaved broadcast signals and a decoder to decode service data in the parsed at least one signal frame.
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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
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.
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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
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：US09954554B2
公开(公告)日：2018-04-24
申请号：US15199177
申请日：2016-06-30
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob Baek , Seoyoung Back , Woosuk Ko , Sungryong Hong
IPC: H04L1/02 , H03M13/27 , H04L1/00 , H04B7/06 , H04B7/04 , H04L27/26 , H04L29/06 , H03M13/11 , H04B7/0413
CPC classification number: H03M13/2792 , H03M13/1102 , H04B7/0413 , H04B7/046 , H04B7/0606 , H04L1/0041 , H04L1/0042 , H04L1/0048 , H04L1/0057 , H04L1/0071 , H04L1/0083 , H04L1/08 , H04L27/2649 , H04L65/4076 , H04L2001/0093
Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, formatting, by an input formatting block, input streams into plural PLPs (Physical Layer Pipes); encoding, by an encoder, data in the plural PLPs; processing, by a framing and interleaving block, the encoded data in the plural PLPs to output at least one signal frame; and waveform modulating, by a waveform generation block, data in the at least one signal frame and transmitting, by the waveform generation block, broadcast signals having the waveform modulated data.
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公开(公告)号：US09935744B2
公开(公告)日：2018-04-03
申请号：US14750018
申请日：2015-06-25
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob Baek , Woosuk Ko , Sungryong Hong
IPC: H04L1/02 , H04L5/00 , H04B7/0413 , H04L27/26 , H04L1/00
CPC classification number: H04L5/0023 , H04B7/0413 , H04L1/0041 , H04L1/0058 , H04L1/0071 , H04L27/2602 , H04L27/2626 , H04L27/2627 , H04L27/2637 , H04L27/2647 , H04W4/06
Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for receiving broadcast signals, the apparatus comprises a receiver to receive the broadcast signals, a demodulator to demodulate the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme, a frame parser to parse a signal frame from the demodulated broadcast signals, wherein the signal frame includes at least one service data, a time deinterleaver to time deinterleave each the service data, wherein the time deinterleaving is performed depending on a number of physical paths for each the service data, a demapper to demap the time deinterleaved data and a decoder to decode the demapped service data.
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Patent Agency Ranking
公开(公告)号：US09917720B2
公开(公告)日：2018-03-13
申请号：US15687014
申请日：2017-08-25
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob Baek , Woosuk Ko , Sungryong Hong
CPC classification number: H04L27/265 , H04L1/0041 , H04L1/0045 , H04L1/0071 , H04L5/0007 , H04L27/2608 , H04L27/263 , H04L27/2637 , H04L2001/0093
Abstract: A method and an apparatus for receiving broadcast signals thereof are disclosed. The apparatus for receiving broadcast signals, the apparatus comprises a receiver to receive the broadcast signals, a demodulator to perform demodulation on the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme, a frequency de-interleaver to frequency de-interleave the demodulated broadcast signals by using a different interleaving sequence, wherein the different interleaving sequence is used for data corresponding to an OFDM symbol pair or data corresponding to an OFDM symbol according to an FFT size of the demodulation, a frame parser to parse at least one signal frame from the frequency de-interleaved broadcast signals and a decoder to decode service data in the parsed at least one signal frame.
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公开(公告)号：US09906388B2
公开(公告)日：2018-02-27
申请号：US15401616
申请日：2017-01-09
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob Baek , Woosuk Ko , Seoyoung Back , Sungryong Hong
CPC classification number: H04L27/2605 , H03M13/00 , H04H40/09 , H04L1/0041 , H04L1/0058 , H04L1/0061 , H04L1/0071 , H04L1/0075 , H04L27/2602 , H04L27/2627 , H04L27/2649 , H04L2001/0093
Abstract: A method and an apparatus for receiving broadcast signals thereof are disclosed. The apparatus for receiving broadcast signals, the apparatus comprises a receiver to receive the broadcast signals, a demodulator to demodulate the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme, a frame parser to parse a signal frame from the demodulated broadcast signals, a time deinterleaver to time deinterleave data in the parsed signal frame and a decoder to decode the time deinterleaved data.
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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：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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