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公开(公告)号：US10601625B2
公开(公告)日：2020-03-24
申请号：US16293361
申请日：2019-03-05
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob Baek , Woosuk Ko , Sungryong Hong
Abstract: Disclosed herein is a method of receiving a broadcast signal. The method comprises receiving the broadcast signal; an Orthogonal Frequency Division Multiplexing (OFDM) demodulating on the received broadcast signal; parsing at least one signal frame from the demodulated broadcast signal to extract service data or service component data; converting the service data or service component data into bits; decoding the converted bits; and outputting a data stream comprising the decoded bits.
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公开(公告)号：US10587368B2
公开(公告)日：2020-03-10
申请号：US16197303
申请日：2018-11-20
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob Baek , Woosuk Ko , Sungryong Hong
IPC: H04L1/00 , H04L5/00 , H04L27/26 , H04L29/06 , H03M13/27 , H03M13/25 , H03M13/00 , H04B7/0456 , H03M13/11 , H03M13/15 , H04L1/04
Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, encoding, by an encoder, PLP (Physical Layer Pipe) data; time interleaving, by a time interleaver, the encoded PLP data; frame mapping, by a framer, the time interleaved PLP data onto at least one signal frames; frequency interleaving, by a frequency interleaver, data in the at least one signal frames; and waveform modulating, by a waveform module, the frequency interleaved data in the at least one signal frame and transmitting, by the waveform module, broadcast signals having the modulated data, wherein the frequency interleaving is conducted according to an interleaving mode, wherein the interleaving mode is determined based on a FFT (Fast Fourier Transform) size.
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公开(公告)号：US10396951B2
公开(公告)日：2019-08-27
申请号：US15971900
申请日：2018-05-04
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob Baek , Seoyoung Back , Woosuk Ko , Sungryong Hong
IPC: H04B7/12 , H04L5/00 , H04L1/00 , H04L27/14 , H04L27/26 , H04L27/12 , H04W4/06 , H04H40/09 , H04H20/28
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：US20190207795A1
公开(公告)日：2019-07-04
申请号：US16293361
申请日：2019-03-05
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob Baek , Woosuk Ko , Sungryong Hong
Abstract: Disclosed herein is a method of receiving a broadcast signal. The method comprises receiving the broadcast signal; an Orthogonal Frequency Division Multiplexing (OFDM) demodulating on the received broadcast signal; parsing at least one signal frame from the demodulated broadcast signal to extract service data or service component data; converting the service data or service component data into bits; decoding the converted bits; and outputting a data stream comprising the decoded bits.
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公开(公告)号：US10237590B2
公开(公告)日：2019-03-19
申请号：US15730461
申请日：2017-10-11
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob Baek , Jaehyung Kim , Woosuk Ko , Sungryong Hong
IPC: H04N21/234 , H04N21/236 , H04N21/2383 , H04N21/434 , H04N21/438 , H04N21/6379 , H04N21/85 , H03M13/27 , H03M13/09 , H03M13/11 , H03M13/15 , H03M13/25 , H03M13/29 , H04L1/00 , H04L5/00 , H04N7/08
Abstract: A method is provided for transmitting broadcast signals. Service data is encoded. The encoded service data is mapped to symbols onto constellations. Data cells are frequency interleaved in a symbol among the symbols in at least one frame unit using an interleaving sequence. The interleaving sequence is generated based on a main interleaving-sequence and a symbol offset value. The interleaving sequence is generated by operating the main interleaving-sequence with the symbol offset value. The data cells are included in the symbol with a symbol index and a frame unit with a frame unit index. The frequency interleaving of the data cells operates on a frame basis. The frequency interleaving of the data cells is reset when a first frame unit is changed to a second frame unit. Data is modulated in the at least one frame unit by an Orthogonal Frequency Division Multiplexing (OFDM) scheme. The broadcast signals carrying the modulated data are transmitted.
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Patent Agency Ranking
公开(公告)号：US10135657B2
公开(公告)日：2018-11-20
申请号：US15676325
申请日：2017-08-14
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob Baek , Woosuk Ko , Sungryong Hong
IPC: H04L5/12 , H04L23/02 , H04L27/26 , H04B7/0413 , H04H20/57 , H04H20/72 , H04H60/07 , H04H60/91 , H04N21/61 , H04N21/2383 , H04L1/00
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：US10090975B2
公开(公告)日：2018-10-02
申请号：US15912335
申请日：2018-03-05
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob Baek , Woosuk Ko , Sungryong Hong
IPC: H04L1/02 , H04L5/00 , H04L1/00 , H04L27/26 , H04B7/0413
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：US10079663B2
公开(公告)日：2018-09-18
申请号：US15443383
申请日：2017-02-27
Applicant: LG Electronics Inc.
Inventor： Byounggill Kim , Woochan Kim , Jaehyung Kim , Sungryong Hong , Chulkyu Mun , Jinyong Choi , Jaeho Hwang , Jongseob Baek , Kookyeon Kwak , Woosuk Ko
CPC classification number: H04L5/0053 , H04B7/0413 , H04H20/59 , H04H20/72 , H04J13/0062 , H04L1/0041 , H04L1/0045 , H04L1/0057 , H04L1/0071 , H04L5/0007 , H04L5/0016 , H04L5/0026 , H04L27/2611 , H04L27/2613 , H04L27/2627 , H04L27/2647 , H04L65/4076 , H04L65/80
Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The method for transmitting broadcast signals comprises encoding DP (data pipe) data carrying at least one service, mapping the encoded DP data onto constellations, time interleaving the mapped DP data, building at least one signal frame including the time interleaved DP data, modulating data in the built at least one signal frame by an OFDM scheme and transmitting the broadcast signals having the modulated data, wherein the at least one signal frame includes emergency alert information.
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公开(公告)号：US09985748B2
公开(公告)日：2018-05-29
申请号：US15091404
申请日：2016-04-05
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: Disclosed herein is a broadcast signal transmitter. A broadcast signal transmitter according to an embodiment of the present invention includes a first BICM unit configured to FEC-encode the data of a core layer, a second BICM unit configured to FEC-encode the enhanced layer data, an LDM injection unit configured to combine the core layer data and the enhanced layer data and to output Layered Division Multiplexing (LDM) data, a time interleaver configured to time-interleave the LDM data, a framing unit configured to generate a signal frame including a preamble for carrying signaling information and the LDM data, and a waveform generation unit configured to generate a broadcast signal by performing OFDM modulation on the signal frame.
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公开(公告)号：US09985747B2
公开(公告)日：2018-05-29
申请号：US15052565
申请日：2016-02-24
Applicant: LG ELECTRONICS INC.
Inventor： Jongseob Baek , Jongwoong Shin , Woosuk Ko , Sungryong Hong
CPC classification number: H04L1/0071 , H03M13/2792 , H04B1/10 , H04H60/11 , H04L1/0033 , H04L1/0036 , H04L1/0045 , H04L1/06 , H04L1/0625 , H04L1/0668 , H04L5/0023 , H04L5/0048 , H04L27/2626 , H04L27/2655
Abstract: Disclosed is a broadcast signal receiver. The broadcast signal receiver includes a synchronization and demodulation unit configured to perform signal detection and OFDM demodulation on a reception signal comprising layer division multiplexing (LDM) data, a frame parsing/deinterleaving unit configured to parse the signal frame of the reception signal and to deinterleave the LDM data, a first demapping/decoding unit configured to obtain the data of a first layer by demapping and forward error correction (FEC)-encoding the LDM data, an interference removal unit configured to remove the data of the first layer from the LDM data and to output the data of a second layer, and a second demapping/decoding unit configured to demap and FEC-decode the data of the second layer.
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