公开(公告)号：US10225200B2

公开(公告)日：2019-03-05

申请号：US15439671

申请日：2017-02-22

Applicant: LG ELECTRONICS INC.

Inventor： Jaeho Hwang ,  Woosuk Ko ,  Timothy Laud ,  Sungryong Hong

IPC: H04L12/28 ,  H04L12/823 ,  H04L12/741 ,  H04L27/26 ,  H04L25/02 ,  H04N21/238 ,  H04N21/2383 ,  H04N21/438 ,  H04L1/00 ,  H04L5/00 ,  H04L12/18 ,  H04L29/06 ,  H04B7/0413

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, processing input streams into BB (Base Band) frames of PLPs (Physical Layer Pipes), wherein the input streams include a plurality of input packets, wherein each of the input packets include a packet header including information about synchronization of the input streams, wherein the processing input streams into BB frames further includes compressing the packet headers of the input packets in the input streams, generating the BB frames by using the compressed input packets; encoding data of the PLPs; building at least one signal frame by mapping the encoded data of the PLPs; and modulating data in the built signal frame by OFDM (Orthogonal Frequency Division Multiplexing) method and transmitting the broadcast signals having the modulated data.

公开(公告)号：US10200513B2

公开(公告)日：2019-02-05

申请号：US15072079

申请日：2016-03-16

Applicant: LG ELECTRONICS INC.

Inventor： Minsung Kwak ,  Woosuk Kwon ,  Jangwon Lee ,  Kyoungsoo Moon ,  Sungryong Hong ,  Woosuk Ko

IPC: H04L29/08 ,  H04N21/2389 ,  H04N21/643 ,  H04N21/2362 ,  H04L12/911 ,  H04L29/06 ,  H04L12/18 ,  H04W4/06

Abstract: A method for processing transmission of a broadcast signal is disclosed. The method includes generating broadcast data for one or more broadcast services, generating first level signaling information including information for describing attribute of the one or more broadcast services, generating second level signaling information including information for listing the one or more broadcast service, generating link layer packets including the encoded broadcast data, the first level signaling information, and the second level signaling information, and generating a broadcast signal including the generated link layer packets.

公开(公告)号：US10200415B2

公开(公告)日：2019-02-05

申请号：US14915111

申请日：2015-11-03

Applicant: LG ELECTRONICS INC.

Inventor： Jangwon Lee ,  Minsung Kwak ,  Woosuk Ko ,  Kyoungsoo Moon ,  Sungryong Hong

IPC: G06F15/16 ,  H04L29/06 ,  H04L29/08

Abstract: The present invention provides a method for transmitting a broadcast signal, and a system capable of supporting future broadcast services in an environment supporting future hybrid broadcast using terrestrial broadcast networks and the Internet. In addition, the present invention provides efficient signaling methods using both terrestrial broadcast networks and the Internet in an environment supporting future hybrid broadcast.

公开(公告)号：US10158517B2

公开(公告)日：2018-12-18

申请号：US15694048

申请日：2017-09-01

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob Baek ,  Woosuk Ko ,  Sungryong Hong

IPC: H04J1/00 ,  H04L27/26 ,  H04L1/00 ,  H04L5/00

Abstract: A method for transmitting broadcast signals includes encoding service data; mapping the encoded service data to symbols; building a signal frame including the symbols; and frequency interleaving the symbols in the signal frame. After an interleaving sequence is generated based on a toggle bit, a basic interleaving sequence, and a symbol offset, it is checked whether or not an address of the generated interleaving sequence is within a range of an OFDM symbol being frequency-interleaved. After checking the address, the symbols are frequency interleaved using the interleaving sequence, and when the FFT size is 32K, a single permutation is applied to the basic interleaving sequence, and when the FFT size is 8K or 16K, different permutations are applied to the basic interleaving sequence.

公开(公告)号：US10158513B2

公开(公告)日：2018-12-18

申请号：US15615663

申请日：2017-06-06

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08 ,  H04L27/26 ,  H04L5/00 ,  H04L12/18 ,  H04H20/42 ,  H04H60/11

Abstract: Disclosed 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 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 PLP 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.

公开(公告)号：US10135659B2

公开(公告)日：2018-11-20

申请号：US15877068

申请日：2018-01-22

Applicant: LG ELECTRONICS INC.

Inventor： Jinyong Choi ,  Woosuk Ko ,  Sangchul Moon ,  Sungryong Hong

IPC: H04B7/0413 ,  H04L27/26 ,  H04W4/06 ,  H04L27/36 ,  H04L27/22 ,  H04L27/34 ,  H04L27/38 ,  H04B7/10

Abstract: A method and apparatus are provided for receiving/transmitting broadcast signals. One method includes receiving broadcast signals; demodulating the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme, wherein signal frames in the received broadcast signals include physical signaling data and service data; MIMO (Multi Input Multi Output) processing the demodulated broadcast signals based on at least one of a phase-hopping matrix with a phase rotation angle and a rotation matrix with a rotation angle, wherein a value of the rotation angle depends on a modulation order and a code rate of the service data; demapping data in the MIMO processed broadcast signals; and decoding the demapped data based on the code rate, wherein when the modulation order is Non-Uniform Constellation (NUC) 16 Quadrature amplitude modulation (QAM) and the code rate is one of 2/15, 3/15, 4/15, or 5/15, then the value of the rotation angle is zero degrees.

公开(公告)号：US10116481B2

公开(公告)日：2018-10-30

申请号：US15061168

申请日：2016-03-04

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H04L12/18 ,  H04H20/42 ,  H04H60/11

Abstract: Disclosed herein is a broadcast signal transmitter. The broadcast signal transmitter according to an embodiment of the present invention includes an input formatting module configured to perform baseband formatting and to output at least one Physical Layer Pipe (PLP) data, a BICM module configured to perform error-correction processing on the PLP data, a framing and interleaving module configured to interleave the PLP data and to generate a signal frame, and a waveform generation module configured to insert a preamble into the signal frame and to generate a broadcast signal by OFDM-modulate the signal frame.

公开(公告)号：US10103829B2

公开(公告)日：2018-10-16

申请号：US15398281

申请日：2017-01-04

Applicant: LG ELECTRONICS INC.

Inventor： Jinyong Choi ,  Byounggill Kim ,  Woochan Kim ,  Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong ,  Chulkyu Mun ,  Jaeho Hwang ,  Jongseob Baek ,  Kookyeon Kwak ,  Sangchul Moon

IPC: H04H20/44 ,  H04L1/00 ,  H04L5/00 ,  H04B7/0413

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 bit interleaved DP data onto constellations according to one of QAM (Quadrature Amplitude Modulation), NUQ (Non-Uniform QAM) or NUC (Non-Uniform Constellation); Multi-Input Multi-Output, MIMO, encoding the mapped DP data by using a MIMO encoding matrix having a MIMO encoding parameter; building at least one signal frame by mapping the MIMO encoded 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.

公开(公告)号：US10097392B2

公开(公告)日：2018-10-09

申请号：US15654329

申请日：2017-07-19

Applicant: LG Electronics Inc.

Inventor： Jongseob Baek ,  Jongwoong Shin ,  Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H03M13/27 ,  H03M13/09 ,  H03M13/11 ,  H03M13/15 ,  H03M13/25 ,  H03M13/29

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an encoder for encoding service data, a mapper for mapping the encoded service data into a plurality of OFDM (Orthogonal Frequency Division Multiplex) symbols to build at least one signal frame, a frequency interleaver for frequency interleaving data in the at least one signal frame by using a different interleaving-seed which is used for every OFDM symbol pair comprised of two sequential OFDM symbols, a modulator for modulating the frequency interleaved data by an OFDM scheme and a transmitter for transmitting the broadcast signals having the modulated data, wherein the different interleaving-seed is generated based on a cyclic shifting value and wherein an interleaving seed is variable based on an FFT size of the modulating.

公开(公告)号：US10070162B2

公开(公告)日：2018-09-04

申请号：US15556612

申请日：2016-03-23

Applicant: LG Electronics Inc.

Inventor： Jangwon Lee ,  Jongyeul Suh ,  Soojin Hwang ,  Minsung Kwak ,  Woosuk Ko ,  Kyoungsoo Moon ,  Sungryong Hong

IPC: H04N7/173 ,  H04N21/2362 ,  H04L29/06 ,  H04N21/845 ,  H04N19/70 ,  H04N21/2343 ,  H04N21/81 ,  H04N19/37

Abstract: The present invention proposes a method for transmitting a broadcast signal. The method for transmitting a broadcast signal according to the present invention proposes a system which can support a next generation broadcast service in an environment supporting a next generation hybrid broadcast using a terrestrial broadcast network and an Internet network. Further, the present invention proposes an efficient signaling scheme which can cover both the terrestrial broadcast network and the Internet network in an environment supporting the next generation hybrid broadcast.