公开(公告)号：US20180007438A1

公开(公告)日：2018-01-04

申请号：US15709081

申请日：2017-09-19

Applicant: LG ELECTRONICS INC.

Inventor： Sejin OH ,  Woosuk KWON ,  Sungryong HONG ,  Kyoungsoo MOON ,  Jangwon LEE ,  Woosuk KO

IPC: H04N21/462 ,  H03M13/11 ,  H04N21/262 ,  H04N21/242 ,  H04N21/2383 ,  H04N21/2362 ,  H04N7/24 ,  H04N5/40 ,  H04L1/00 ,  H04N21/43 ,  H03M13/27 ,  H04N21/854 ,  H04H20/40 ,  H04H60/07 ,  H04H60/39

CPC classification number: H04N21/462 ,  H03M13/1102 ,  H03M13/2792 ,  H04H20/40 ,  H04H60/07 ,  H04H60/39 ,  H04L1/00 ,  H04L1/0041 ,  H04N5/40 ,  H04N7/24 ,  H04N21/2362 ,  H04N21/2383 ,  H04N21/242 ,  H04N21/26275 ,  H04N21/4302 ,  H04N21/85406

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, formatting input streams into Data Pipe (DP) data, Low-Density Parity-Check (LDPC) encoding the DP data according to a code rate, bit interleaving the LDPC encoded DP data, mapping the hit interleaved DP data onto constellations, building at least one signal frame including the mapped DP data, and modulating data in the built signal frame by an Orthogonal Frequency Division Multiplexing (OFDM) method and transmitting the broadcast signals having the modulated data, wherein the input streams include Audio/Video (A/V) data and service guide data, and wherein the Audio/Video (A/V) data and service guide data are included in first ISO base media file format (ISOBMFF) files.

公开(公告)号：US20170373905A1

公开(公告)日：2017-12-28

申请号：US15646938

申请日：2017-07-11

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob BAEK ,  Woosuk KO ,  Sungryong HONG

IPC: H04L27/26 ,  H03M13/11 ,  H03M13/25 ,  H03M13/27 ,  H04L12/18 ,  H04L5/00 ,  H04L1/00 ,  H03M13/29 ,  H04L29/08 ,  H04L29/06 ,  H03M13/09 ,  H03M13/15

CPC classification number: H04L27/2649 ,  H03M13/09 ,  H03M13/1165 ,  H03M13/152 ,  H03M13/255 ,  H03M13/271 ,  H03M13/2721 ,  H03M13/2732 ,  H03M13/2778 ,  H03M13/2792 ,  H03M13/2906 ,  H04L1/0041 ,  H04L1/0048 ,  H04L1/0057 ,  H04L1/0071 ,  H04L5/0048 ,  H04L12/189 ,  H04L27/2613 ,  H04L27/2626 ,  H04L27/2647 ,  H04L27/2675 ,  H04L69/22 ,  H04L69/323 ,  H04L2001/0093

Abstract: A broadcast signal transmitter is disclosed. A broadcast signal transmitter according to an embodiment of the present invention comprises an input formatting module configured to perform baseband formatting and to output at least one PLP (Physical Layer Pipe) data; a BICM (Bit Interleaved Coded Modulation) module configured to perform an error correction process on the PLP data; a framing and interleaving module configured to interleave the PLP data and to generate a signal frame; and a waveform generating module configured to generate a broadcast signal by inserting a preamble into the signal frame and performing OFDM modulation.

公开(公告)号：US20170373894A1

公开(公告)日：2017-12-28

申请号：US15673058

申请日：2017-08-09

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung KIM ,  Woosuk KO ,  Chulkyu MUN ,  Sungryong HONG

IPC: H04L27/26 ,  H04L1/00

CPC classification number: H04L27/2601 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0071 ,  H04L1/0075 ,  H04L25/0232 ,  H04L27/2611 ,  H04L27/2613 ,  H04L27/265 ,  H04L27/2656 ,  H04L27/2662 ,  H04L27/2666 ,  H04L2001/0093

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.

公开(公告)号：US20170366379A9

公开(公告)日：2017-12-21

申请号：US15401616

申请日：2017-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob BAEK ,  Woosuk KO ,  Seoyoung BACK ,  Sungryong HONG

IPC: H04L27/26 ,  H04L1/00 ,  H04H40/09

CPC classification number: H04L27/2605 ,  H03M13/00 ,  H04H40/09 ,  H04L1/0041 ,  H04L1/0058 ,  H04L1/0061 ,  H04L1/0071 ,  H04L1/0075 ,  H04L27/2602 ,  H04L27/2627 ,  H04L27/2649 ,  H04L2001/0093

Abstract: A method and an apparatus for receiving 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, a time deinterleaver to time deinterleave data in the parsed signal frame and a decoder to decode the time deinterleaved data.

公开(公告)号：US20170353339A1

公开(公告)日：2017-12-07

申请号：US15687014

申请日：2017-08-25

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob BAEK ,  Woosuk KO ,  Sungryong HONG

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04L27/265 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0071 ,  H04L5/0007 ,  H04L27/2608 ,  H04L27/263 ,  H04L27/2637 ,  H04L2001/0093

Abstract: A method and an apparatus for receiving broadcast signals thereof are disclosed. The apparatus for receiving broadcast signals, the apparatus comprises a receiver to receive the broadcast signals, a demodulator to perform demodulation on the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme, a frequency de-interleaver to frequency de-interleave the demodulated broadcast signals by using a different interleaving sequence, wherein the different interleaving sequence is used for data corresponding to an OFDM symbol pair or data corresponding to an OFDM symbol according to an FFT size of the demodulation, a frame parser to parse at least one signal frame from the frequency de-interleaved broadcast signals and a decoder to decode service data in the parsed at least one signal frame.

公开(公告)号：US20170339453A1

公开(公告)日：2017-11-23

申请号：US15656296

申请日：2017-07-21

Applicant: LG ELECTRONICS INC.

Inventor： Woosuk KWON ,  Sungryong HONG ,  Kyoungsoo MOON ,  Woosuk KO ,  Sejin OH

IPC: H04N21/434 ,  G11B27/10 ,  H04N21/845 ,  H04N21/643 ,  H04N21/61 ,  H04N21/236 ,  H04N21/234 ,  H04L29/06 ,  H04L12/18 ,  H04N21/854 ,  H04N21/2385 ,  H04H60/73 ,  H04H20/28

CPC classification number: H04N21/4345 ,  G11B27/10 ,  H04H20/28 ,  H04H60/73 ,  H04L12/1836 ,  H04L65/4076 ,  H04L65/608 ,  H04L65/80 ,  H04L69/04 ,  H04L69/22 ,  H04L69/24 ,  H04N21/234 ,  H04N21/23614 ,  H04N21/2385 ,  H04N21/6125 ,  H04N21/64322 ,  H04N21/8456 ,  H04N21/854 ,  H04N21/85406

Abstract: An apparatus for transmitting a broadcast signal, the apparatus includes a hardware processor configured to generate input packets carrying service data for a broadcast service; generate a link layer packet having a header and a payload by using the input packets; and generate a broadcast signal including the link layer packet; and a broadcast transmitter configured to transmit the broadcast signal, wherein the header includes a packet type field indicating a packet type of the input packets, and determining which header fields present after the packet type field, wherein when the packet type field indicates that the input packets are Internet Protocol (IP) packets, the hardware processor, to generate a link layer packet, further configured to: add 2 signaling bits immediately after the packet type field, the 2 signaling bits indicating whether the payload carries a segment of one input packet or concatenated input packets.

公开(公告)号：US20170332111A1

公开(公告)日：2017-11-16

申请号：US15634532

申请日：2017-06-27

Applicant: LG ELECTRONICS INC.

Inventor： Chulkyu MUN ,  Jaehyung KIM ,  Hochul JUNG ,  Woosuk KO ,  Sungryong HONG

IPC: H04N21/2383 ,  H04L27/26 ,  H04B7/0413 ,  H04H20/33 ,  H04N21/2389

CPC classification number: H04N21/2383 ,  H04B7/0413 ,  H04H20/33 ,  H04L27/2602 ,  H04L27/2618 ,  H04N21/2389

Abstract: A method for transmitting broadcast signals by an apparatus for transmitting broadcast signals, the method includes encoding data corresponding to each of data pipes; encoding signaling data; building at least one signal frame including the encoded data and the encoded signaling data; modulating data of the at least one signal frame by an Orthogonal Frequency Division Multiplex (OFDM) scheme; performing Peak to Average Power Ratio (PAPR) reduction for the modulated data using a tone reservation algorithm based on a Fast Fourier Transform (FFT) size; and transmitting time domain broadcast signals carrying the modulated data of the at least one signal frame, wherein the at least one signal frame comprises signaling symbols and data symbols, wherein a set of carriers in the signaling symbols and a set of carriers in the data symbols are reserved for the PAPR reduction, respectively.

公开(公告)号：US20170331530A1

公开(公告)日：2017-11-16

申请号：US15603035

申请日：2017-05-23

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob BAEK ,  Woosuk KO ,  Sungryong HONG

IPC: H04B7/0413 ,  H04H60/73 ,  H04L27/26 ,  H04L1/00 ,  H04H60/11

CPC classification number: H04B7/0413 ,  H04H60/11 ,  H04H60/73 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0075 ,  H04L27/2626 ,  H04L27/2649 ,  H04L2001/0093

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 corresponding to each of a plurality of physical paths, a time interleaver to the encoded service data in each physical path by a TI (Time Interleaving) block, wherein at least one virtual FEC block is ahead of FEC blocks in at least one TI block, wherein each TI block includes a variable number of FEC blocks of the encoded service data, wherein a number of the at least one virtual FEC block is defined based on a maximum number of FEC blocks of a TI block, 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.

公开(公告)号：US20170324789A1

公开(公告)日：2017-11-09

申请号：US15657815

申请日：2017-07-24

Applicant: LG ELECTRONICS INC.

Inventor： Minsung KWAK ,  Jangwon LEE ,  Woosuk KO ,  Sungryong HONG

IPC: H04L29/06 ,  H04L12/18 ,  H04N21/00

CPC classification number: H04L65/4076 ,  H04L12/18 ,  H04L12/1881 ,  H04L65/608 ,  H04N21/00

Abstract: A method for processing a broadcast signal, the method includes receiving a broadcast signal via a broadcast stream, the broadcast signal including service components of a broadcast service, service signaling information for signaling the broadcast service and a service list table; parsing the broadcast signal and obtaining the service list table, the service list table including bootstrap information for indicating a Real time Object delivery over Unidirectional Transport (ROUTE) session which delivers the service signaling information; obtaining the service signaling information by using the bootstrap information, the service signaling information includes first and second metadata, wherein the first metadata is used to determine a transport mode of each of the service components, and wherein the second metadata provides session description information for accessing the service components from the broadcast stream; and obtaining the service components for the broadcast service, and providing the broadcast service by using the service signaling information.

公开(公告)号：US20170324597A1

公开(公告)日：2017-11-09

申请号：US15656796

申请日：2017-07-21

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung KIM ,  Woosuk KO ,  Chulkyu MUN ,  Sungryong HONG

IPC: H04L27/26 ,  H04L1/00

CPC classification number: H04L27/2601 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0071 ,  H04L1/0075 ,  H04L25/0232 ,  H04L27/2611 ,  H04L27/2613 ,  H04L27/265 ,  H04L27/2656 ,  H04L27/2662 ,  H04L27/2666 ,  H04L2001/0093

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.