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公开(公告)号：US20210083815A1
公开(公告)日：2021-03-18
申请号：US17107296
申请日：2020-11-30
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob BAEK , Woosuk Ko , Sungryong Hong
IPC: H04L5/00 , H04B7/0413 , H04L27/26 , H04L1/00 , 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 damapper to demap the time deinterleaved data and a decoder to decode the demapped service data.
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公开(公告)号：US20210068063A1
公开(公告)日：2021-03-04
申请号：US16644376
申请日：2017-09-04
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob BAEK , Woosuk KO , Jinwoo KIM
Abstract: Disclosed is a communication method of a V2X communication device. The communication method of a V2X communication device comprises the steps of: accessing a control channel (CCH) by using a CCH transceiver; and accessing a service channel (SCH) by using a SCH transceiver.
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公开(公告)号：US20200169353A1
公开(公告)日：2020-05-28
申请号：US16774766
申请日：2020-01-28
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob BAEK , Woosuk KO
Abstract: A method and device for receiving a broadcast signal are discussed. The method includes in one example receiving a broadcast signal; orthogonal frequency division multiplexing (OFDM) demodulating the broadcast signal; parsing a signal frame of the broadcast signal; time deinterleaving one or more Time Interleaving (TI) block of the signal frame based on an interleaving sequence order, wherein data cells in the one or more TI block are written into a memory based on position information of virtual cells skipped in time interleaving reading operation at a transmitter; and forward error correction (FEC) decoding the broadcast data.
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公开(公告)号：US20190306834A1
公开(公告)日：2019-10-03
申请号：US16447327
申请日：2019-06-20
Applicant: LG ELECTRONICS INC.
Inventor： Jaeho HWANG , Byounggill KIM , Woochan KIM , Jaehyung KIM , Sungryong HONG , Chulkyu MUN , Jinyong CHOI , Jongseob BAEK , Kookyeon KWAK , Woosuk KO
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.
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公开(公告)号：US20190305886A1
公开(公告)日：2019-10-03
申请号：US16304573
申请日：2016-05-24
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob BAEK , Woosuk KO
Abstract: A broadcast signal reception method, according to one embodiment of the present invention, may comprise the steps of: receiving a broadcast signal, demodulating the received broadcast signal by an orthogonal frequency-division multiplexing (OFDM) method, parsing at least one signal frame from the demodulated broadcast signal, convolutionally deinterleaving data in the at least one parsed signal frame, block deinterleaving the convolutionally deinterleaved data, cell deinterleaving the block deinterleaved data, and decoding the cell deinterleaved data.
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Patent Agency Ranking
公开(公告)号：US20190089567A1
公开(公告)日：2019-03-21
申请号：US16195096
申请日：2018-11-19
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob BAEK , Woosuk KO , Sungryong HONG
IPC: H04L27/26 , H04H60/07 , H04H20/57 , H04B7/0413 , H04L1/00 , H04N21/61 , H04N21/2383 , H04H20/72 , H04H60/91 , H04B7/06
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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公开(公告)号：US20180254865A1
公开(公告)日：2018-09-06
申请号：US15971900
申请日：2018-05-04
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob BAEK , Seoyoung BACK , Woosuk KO , Sungryong HONG
CPC classification number: H04L5/0044 , H04B7/12 , H04H20/28 , H04H40/09 , H04L1/0041 , H04L1/0045 , H04L1/0057 , H04L1/0065 , H04L1/0071 , H04L5/0007 , H04L5/0023 , H04L5/0053 , H04L27/12 , H04L27/14 , H04L27/26 , H04L27/2647 , H04W4/06
Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals, the apparatus comprises an encoder to encode service data, a mapper to map the encoded service data, a time interleaver to time interleave the mapped service data, wherein the time interleaving is performed depending on number of physical paths for the service data, a frame builder to build at least one signal frame including the time interleaved service 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.
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公开(公告)号：US20180254855A1
公开(公告)日：2018-09-06
申请号：US15971238
申请日：2018-05-04
Applicant: LG ELECTRONICS INC.
Inventor： Jongwoong SHIN , Woosuk KO , Jaehyung KIM , 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 transmitter includes a first Forward Error Correction (FEC) encoder configured to encode core layer data, a second FEC encoder configured to encode enhanced layer data, an injection level controller configured to control power ratio between the encoded core layer data and the encoded enhanced layer data, a combiner configured to combine the core layer data and the enhanced layer data and to output Layered Division Multiplexing (LDM) data, a power normalizer configured to normalize power of the outputted LDM data, a time interleaver configured to time-interleave the LDM data, a framer configured to generate a signal frame comprising a preamble and the time-interleaved LDM data, the preamble carrying signaling information, and a modulator configured to perform Orthogonal Frequency Division Multiplexing (OFDM) modulation on the generated signal frame.
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公开(公告)号：US20180198655A1
公开(公告)日：2018-07-12
申请号：US15912087
申请日：2018-03-05
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 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：US20180198576A1
公开(公告)日：2018-07-12
申请号：US15912335
申请日：2018-03-05
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob BAEK , Woosuk KO , Sungryong HONG
IPC: H04L5/00 , H04L27/26 , H04B7/0413 , 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 damapper to demap the time deinterleaved data and a decoder to decode the demapped service data.
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