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公开(公告)号：US09219630B2
公开(公告)日：2015-12-22
申请号：US14559364
申请日：2014-12-03
Applicant: LG ELECTRONICS INC.
Inventor： Chulkyu Mun , Jongseob Baek , Byounggill Kim , Jaehyung Kim , Woosuk Ko , Sungryong Hong
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.
Abstract translation: 用于发送广播信号的装置包括：输入格式化模块，被配置为将输入流解复用为至少一个数据管道（DP）; BICM模块，被配置为对所述至少一个DP的数据执行纠错处理; 信号帧构建模块，被配置为将所述DP的数据映射到信号帧内的符号; 以及OFDM生成模块，被配置为通过在所述信号帧中插入前导码并执行OFDM调制来生成发送广播信号。 OFDM生成模块包括导频信号插入模块，该导频信号插入模块被配置为将包括连续导频（CP）和散射导频（SP）的导频信号插入到传输广播信号中，并且将CP插入到信号帧的每个符号中， 基于快速傅里叶变换（FFT）大小来确定CP的数量。
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42.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：US20140341103A1
公开(公告)日：2014-11-20
申请号：US14278431
申请日：2014-05-15
Applicant: LG Electronics Inc.
Inventor： Jaeho Hwang , Byounggill Kim , Woochan Kim , Jaehyung Kim , Sungryong Hong , Chulkyu Mun , Jinyong Choi , Jonbseob Baek , Kookyeon Kwak , Woosuk Ko
CPC classification number: H04W72/005 , H04H20/72 , H04L1/0033 , H04L1/0036 , H04L1/0057 , H04L1/0065 , H04L1/0068 , H04L1/0071 , H04L1/06 , H04L5/0007 , H04L27/2601 , H04L69/04 , H04W28/06
Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an input formatter to format at least one input stream to output 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 or at least one service component, an encoder to encode the DP data, a mapper to map the encoded DP data onto constellations, a time interleaver to time interleave the mapped DP data, a frame builder to build at least one signal frame including the time interleaved DP data, a modulator to modulate data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter to transmit 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输入格式化器，用于格式化至少一个输入流以输出对应于多个DP中的每一个的DP（数据管道）数据，其中多个DP中的每一个携带至少一个服务或至少 一个服务组件，用于对DP数据进行编码的编码器，映射器将编码的DP数据映射到星座上，时间交织器对时间交织映射的DP数据;帧构建器，用于构建至少一个信号帧，包括时间交织的DP数据 调制器，用于通过OFDM（正交频分复用）方案来调制所构建的至少一个信号帧中的数据，以及发送器，用于发送具有调制数据的广播信号。
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公开(公告)号：US11671794B2
公开(公告)日：2023-06-06
申请号：US17133242
申请日：2020-12-23
Applicant: LG ELECTRONICS INC.
Inventor： Jaehyung Kim , Woosuk Ko , Chulkyu Mun , Sungryong Hong
CPC classification number: H04W4/06 , H04L5/0007 , H04L5/0048 , H04L27/265 , H04L27/2613 , H04L27/2666 , H04W52/325 , H04W52/54 , H04L27/26136
Abstract: A device includes a tuner configured to tune a broadcast signal; a pilot detector configured to detect pilots in the tuned broadcast signal; a de-framer configured to parse a signal frame of the broadcast signal. Further, the signal frame carries Physical Layer Pipe (PLP) data, and the signal frame includes a preamble and at least one subframe. The device also includes a decoder configured to decode the PLP data.
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44.发明授权公开(公告)号：US11223850B2
公开(公告)日：2022-01-11
申请号：US16884152
申请日：2020-05-27
Applicant: LG ELECTRONICS INC.
Inventor： Chulkyu Mun , Jinwoo Kim , Inhwan Choi , Byounggill Kim , Wongyu Song
IPC: H04N19/66 , H03M13/27 , H04L27/06 , H04L1/00 , H04L25/02 , H03M13/29 , H03M13/35 , H04N21/2383 , H04N21/438 , H04N21/61 , H04L29/00 , H04N7/24 , H04N21/2389 , H04L27/00 , H03M13/09 , H03M13/15 , H03M13/25 , H04H20/57 , H04N21/236 , H04N21/2362
Abstract: A transmitting system, receiving system, and a method of processing broadcast signals are disclosed. The method for processing a broadcast signal in a broadcast receiver comprises receiving a DTV signal including a data group, the data group including mobile service data, segmented known data sequences, long known data sequences and transmission parameter data, compensating carrier frequency offset of the DTV signal and channel-equalizing the carrier frequency offset compensated DTV signal using at least one of the long known data sequences and segmented known data sequences in the data group of the DTV signal, wherein the channel-equalizing includes performing a Error Correction (FEC) decoding on data located between the segmented known data sequences, and estimating Channel Impulse Response (CIR) using the FEC decoded data as known data.
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公开(公告)号：US20210194739A1
公开(公告)日：2021-06-24
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
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.
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Patent Agency Ranking
公开(公告)号：US10931495B2
公开(公告)日：2021-02-23
申请号：US16742225
申请日：2020-01-14
Applicant: LG Electronics Inc.
Inventor： Jaehyung Kim , Chulkyu Mun , Woosuk Ko , Jongseob Baek , Sungryong Hong
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.
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公开(公告)号：US10715966B2
公开(公告)日：2020-07-14
申请号：US16362053
申请日：2019-03-22
Applicant: LG ELECTRONICS INC.
Inventor： Jaehyung Kim , Woosuk Ko , Chulkyu Mun , Sungryong Hong
Abstract: A method for processing a broadcast signal, includes encoding Physical Layer Pipe (PLP) data; generating a signal frame by mapping the encoded PLP data onto data symbols in at least one subframe of the signal frame and mapping signaling data onto preamble symbols of a preamble of the signal frame; inserting first pilots into the data symbols of the signal frame and inserting second pilots into the preamble symbols of the signal frame, wherein the first pilots are different from the second pilots, each data symbol has a pilot density according to a first pilot pattern and each preamble symbol has a pilot density according to a second pilot pattern; and modulating data in the signal frame, the signaling information including a boosting parameter of which value has a range defined from 0 to 4 for a subframe.
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公开(公告)号：US10554466B2
公开(公告)日：2020-02-04
申请号：US16192409
申请日：2018-11-15
Applicant: LG Electronics Inc.
Inventor： Jaehyung Kim , Chulkyu Mun , Woosuk Ko , Jongseob Baek , Sungryong Hong
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.
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公开(公告)号：US10348545B2
公开(公告)日：2019-07-09
申请号：US15722768
申请日：2017-10-02
Applicant: LG ELECTRONICS INC.
Inventor： Jaehyung Kim , Chulkyu Mun , Woosuk Ko , Jongseob Baek , Sungryong Hong
Abstract: A broadcast signal transmitter is provided that includes an input formatter, a Forward Error Correction (FEC) encoder, a constellation mapper, a time interleaver, a framer and a waveform generator. The input formatter input processes input data to output Physical Layer Pipe (PLP) data. The FEC encoder performs FEC encoding on the PLP data. The constellation mapper performs constellation mapping on the PLP data. The time interleaver is configured to time interleave the PLP data. The framer is configured to generate a signal frame comprising the PLP data. The waveform generator is configured to generate a transmission broadcast signal comprising the signal frame. A number of carriers of the signal frame is determined by the equation: NoC=NoC_max−k*Δ, wherein NoC is the number of carriers, NoC_max is a maximum number of carriers, k is a reducing coefficient, and Δ is a control unit value.
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公开(公告)号：US10103915B2
公开(公告)日：2018-10-16
申请号：US15656796
申请日：2017-07-21
Applicant: LG ELECTRONICS INC.
Inventor： Jaehyung Kim , Woosuk Ko , Chulkyu Mun , Sungryong Hong
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.
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