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公开(公告)号：US20200244496A1
公开(公告)日：2020-07-30
申请号：US16847143
申请日：2020-04-13
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob BAEK , Jongwoong SHIN , Jaehyung KIM
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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公开(公告)号：US20190288890A1
公开(公告)日：2019-09-19
申请号：US16429961
申请日：2019-06-03
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob BAEK , Jongwoong SHIN , Jaehyung KIM , Woosuk KO , Sungryong HONG
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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73.发明申请公开(公告)号：US20190268092A1
公开(公告)日：2019-08-29
申请号：US16247090
申请日：2019-01-14
Applicant: LG Electronics Inc.
Inventor： Ilmu BYUN , Jongwoong SHIN , Jinwoo KIM , Kwangseok NOH , Bonghoe KIM
Abstract: A method for performing encoding on the basis of a parity check matrix of a low density parity check code according to the present embodiment comprises the steps of: generating a parity check matrix by a terminal, wherein the parity check matrix corresponds to a characteristic matrix, each component of the characteristic matrix corresponds to a shift index value determined through a modulo operation between a corresponding component in a basic matrix and Zc, which is a lifting value, and the basic matrix is a 42×52 matrix; and performing encoding of input data, by the terminal, using the parity check matrix, wherein the lifting value is associated with the length of the input data.
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公开(公告)号：US20190165889A1
公开(公告)日：2019-05-30
申请号：US16263616
申请日：2019-01-31
Applicant: LG Electronics Inc.
Inventor： Seunggye HWANG , Kijun KIM , Soocheol KYEONG , Bonghoe KIM , Jinwoo KIM , Kwangseok NOH , Jongwoong SHIN , Joonkui AHN , Hyangsun YOU
Abstract: A disclosure of the present specification provides a method for transmitting data by a transmitter. The method may comprise the steps of: when a transport block (TB) is divided into n data blocks, adding additional information after each of the n data blocks; and adding a cyclic redundancy check (CRC) after the last additional information. Here, the CRC may be generated on the basis of the n data blocks, and the n pieces of additional information added after each of data blocks.
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公开(公告)号：US20180227160A1
公开(公告)日：2018-08-09
申请号：US15741592
申请日：2016-03-18
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob BAEK , Jaehyung KIM , Sungryong HONG , Jongwoong SHIN
CPC classification number: H04L1/0071 , H04B7/0413 , H04L1/0041 , H04L1/0057 , H04L1/0061 , H04L1/0075 , H04L1/04 , H04L5/0007 , H04L27/2602 , H04L27/2608 , H04L27/2628 , H04L27/2647 , H04L27/2692 , H04L65/4076 , H04L65/607 , H04L65/80 , H04L2001/0093 , H04W72/0446
Abstract: A broadcast signal receiving device according to an embodiment of the present invention may comprise: a receiving unit for receiving broadcast signals; a demodulator for demodulating the received broadcast signals using an OFDM (Orthogonal Frequency Division Multiplex) technique; a frequency deinterleaver for deinterleaving the demodulated broadcast signals by using an interleaving sequence generated on the basis of a basic interleaving sequence and a symbol offset value; a frame parser for parsing at least one signal frame from the frequency deinterleaved broadcast signals; and a decoder for decoding service data in the at least one parsed signal frame.
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Patent Agency Ranking
公开(公告)号：US20180152205A1
公开(公告)日：2018-05-31
申请号：US15821393
申请日：2017-11-22
Applicant: LG ELECTRONICS INC.
Inventor： Jinwoo KIM , Jongwoong SHIN , Bonghoe KIM , Byounghoon KIM , Kwangseok NOH
CPC classification number: H03M13/2792 , H03M13/09 , H03M13/1102 , H03M13/116 , H03M13/1185 , H03M13/255 , H03M13/2707 , H03M13/2906 , H03M13/6306 , H04L1/0057 , H04L1/0058 , H04L1/0071 , H04L27/3405
Abstract: A method of performing interleaving, which is performed by a communication apparatus using a low-density parity-check code (LDPC), includes outputting LDPC encoded bits to a block interleaver, and performing block interleaving on the LDPC encoded bits inputted to the block interleaver in a unit of a size of one time transport block based on the a position of redundancy version.
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公开(公告)号：US20170201407A1
公开(公告)日：2017-07-13
申请号：US15473108
申请日：2017-03-29
Applicant: LG ELECTRONICS INC.
Inventor： Yonghak SUH , Sangchul MOON , Jongwoong SHIN , Woosuk KO , Sungryong HONG
CPC classification number: H04L27/2649 , H03M13/1102 , H03M13/2792 , H04L1/0009 , H04L1/0023 , H04L1/0042 , H04L1/0045 , H04L1/0057 , H04L1/0058 , H04L1/0065 , H04L1/0071 , H04L5/0007 , H04L27/12
Abstract: A method is presented for receiving broadcast signals. The broadcast signals are received. The received broadcast signals are demodulated by an Orthogonal Frequency Division Multiplex (OFDM) scheme. A signal frame is parsed from the demodulated broadcast signals. Data in the parsed signal frame is bit interleaved. The bit deinterleaving includes block deinterleaving the data with each set of a number of bit groups. The number of bit groups is based on modulation type. When the modulation type is 16 Quadrature Amplitude Modulation (QAM), the number of bit groups is 4. The block deinterleaved data is group-wise deinterleaved by a unit of the bit group and parity deinterleaving parity bits of data in the group-wise deinterleaved data. The bit deinterleaved data is decoded.
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公开(公告)号：US20170180080A1
公开(公告)日：2017-06-22
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
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.
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公开(公告)号：US20170099171A1
公开(公告)日：2017-04-06
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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80.发明申请APPARATUS FOR TRANSMITTING BROADCAST SIGNALS, APPARATUS FOR RECEIVING BROADCAST SIGNALS, METHOD FOR TRANSMITTING BROADCAST SIGNALS AND METHOD FOR RECEIVING BROADCAST SIGNALS 有权用于发送广播信号的装置，用于接收广播信号的装置，用于发送广播信号的方法和用于接收广播信号的方法公开(公告)号：US20160323051A1
公开(公告)日：2016-11-03
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
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.
Abstract translation: 公开了一种用于发送广播信号的方法和装置。 用于发送广播信号的装置包括用于对与多个DP中的每一个对应的DP（数据管道）数据进行编码的编码器，其中，多个DP中的每一个携带至少一个服务组件，映射器，用于将编码的DP数据映射到 星座，时间交织器，用于通过跳过具有零值的DP数据的DP电平来对DP位置上的映射DP数据进行时间交织;构建器，用于构建至少一个包括时间交织的DP数据的信号帧;调制器， 通过OFDM（正交频分复用）方案构建至少一个信号帧，以及用于发送具有调制数据的广播信号的发射机。
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