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公开(公告)号：US10158449B2
公开(公告)日：2018-12-18
申请号：US15900280
申请日：2018-02-20
Applicant: LG ELECTRONICS INC.
Inventor： Jaeho Hwang , Woosuk Ko , Sungryong Hong
Abstract: A method and apparatus for receiving broadcast signals are discussed. The method includes receiving the broadcast signals; demodulating the received broadcast signals by an Orthogonal Frequency Division Multiplex (OFDM) scheme; obtaining broadcast data from a signal frame in the demodulated broadcast signals, wherein the broadcast data includes video data or audio data, and the broadcast data is carried by only a Data Pipe (DP); decoding the broadcast data; and output-processing the decoded broadcast data to output a data packet, wherein the data packet includes a Transport Stream (TS) packet, wherein a header of the data packet includes first information indicating whether a header deletion is performed in the TS packet, wherein the header of the data packet further includes second information indicating whether a null packet deletion is performed, and wherein when the second information is not a zero value, the null packet is deleted prior to the data packet.
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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：US10129061B2
公开(公告)日：2018-11-13
申请号：US15673058
申请日：2017-08-09
Applicant: LG ELECTRONICS INC.
Inventor： Jaehyung Kim , Woosuk Ko , Chulkyu Mun , Sungryong Hong
Abstract: A broadcast signal transmitter is disclosed. A broadcast signal transmitter according to an embodiment of the present invention comprises an input formatting module performing baseband formatting and outputting at least one Physical Layer Pipe (PLP) data; a BICM module error-correction processing the PLP data; a framing & interleaving module interleaving the PLP data and generating a signal frame; and a waveform generating module inserting a preamble into the signal frame and generating a broadcast signal by performing OFDM modulation.
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公开(公告)号：US10103920B2
公开(公告)日：2018-10-16
申请号：US15628435
申请日：2017-06-20
Applicant: LG Electronics Inc.
Inventor： Sangchul Moon , Woosuk Ko , Sungryong Hong , Jinwoo Kim , Jongwoong Shin
IPC: H04L27/00 , H04L27/26 , H04L1/00 , H04H20/30 , H04N21/434 , H04N21/2383 , H04N21/2362 , H03M13/00 , H04N21/438
Abstract: The present invention provides an apparatus of transmitting broadcast signals, the apparatus including, an encoder for encoding service data, a frame builder for building at least one signal frame by mapping the encoded service data, a modulator for modulating data in the built at least one signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, scheme and a transmitter for transmitting the broadcast signals having the modulated 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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Patent Agency Ranking
公开(公告)号：US10084842B2
公开(公告)日：2018-09-25
申请号：US15018523
申请日：2016-02-08
Applicant: LG ELECTRONICS INC.
Inventor： Jangwon Lee , Minsung Kwak , Woosuk Ko , Kyoungsoo Moon , Sungryong Hong
CPC classification number: H04L65/80 , H04L65/4076
Abstract: A method for processing a broadcast signal according to an embodiment of the present invention includes: encoding broadcast data for one or more broadcast services; encoding first level signaling information including information describing properties of the one or more broadcast services; encoding second level signaling information including information for listing the one or more broadcast services; and generating a broadcast signal including the encoded broadcast data, first level signaling information and second level signaling information.
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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：US10021535B2
公开(公告)日：2018-07-10
申请号：US14995479
申请日：2016-01-14
Applicant: LG ELECTRONICS INC.
Inventor： Jaehyung Kim , Woosuk Ko , Chulkyu Mun , Sungryong Hong
CPC classification number: H04W4/06 , H04L5/0007 , H04L5/0048 , H04L27/2613 , H04L27/2626 , H04L27/2666 , H04W52/325 , H04W52/54
Abstract: Discussed herein is a broadcast signal receiver. The broadcast signal receiver according to an embodiment of the present invention includes a synchronization and demodulation module configured to perform signal detection and OFDM demodulation on a received broadcast signal, a frame parsing and deinterleaving module configured to parse and deinterleave the signal frame of the broadcast signal, a demapping and decoding module configured to convert the data of at least one Physical Layer Pipe (PLP) of the broadcast signal into a bit domain and to FEC-decode the data, and an output processing module configured to receive the data of the at least one PLP and to output the received data in a data stream form.
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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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