公开(公告)号：US10469189B2

公开(公告)日：2019-11-05

申请号：US16113827

申请日：2018-08-27

Applicant: LG ELECTRONICS INC.

Inventor： Jangwon Lee ,  Sejin Oh ,  Woosuk Kwon ,  Kyoungsoo Moon ,  Woosuk Ko ,  Sungryong Hong

IPC: H04H20/71 ,  H04L29/06 ,  H04L29/08 ,  H04N19/89 ,  H04N21/235 ,  H04N21/236 ,  H04N21/61 ,  H04N21/84 ,  H04N21/2362

Abstract: A device with one or more processors for processing broadcast signals, the device including a depacketizing processor for extracting one or more delivery objects from one or more Layered Coding Transport (LCT) packets of the broadcast signals based on signaling information including mapping information, wherein the one or more LCT packet are used to transport the one or more delivery objects including service data for one or more broadcast services of the broadcast signals, wherein the one or more delivery object are carried in one or more transport sessions, wherein each LCT packet includes a header having a Transport Object Identifier (TOI) identifying a delivery object being carried in the each LCT packet, wherein the mapping information is used to establish a one-to-one mapping between the TOI and a uniform resource locator (URL) for the delivery object, wherein the one or more LCT packets and the signaling information are transmitted separately, wherein the header of each LCT packet further includes type information indicating whether a type of the delivery object being carried in the each LCT packet is a media segment type or an initialization segment type and a decoding processor for decoding the service data for the broadcast service.

公开(公告)号：US10454602B2

公开(公告)日：2019-10-22

申请号：US15307734

申请日：2016-01-05

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/90 ,  H04N21/81 ,  H04N21/61 ,  H04N7/08 ,  H04N21/478 ,  H04H20/59 ,  H04W4/06

Abstract: The present invention proposes a method of transmitting a broadcast signal. The method of transmitting a broadcast signal according to the present invention proposes a system capable of supporting a next-generation service in an environment that supports next-generation hybrid broadcasting which uses a terrestrial broadcast network and an Internet protocol network. In addition, the method proposes an efficient signaling scheme that can embrace both the terrestrial broadcast network and the Internet protocol network in an environment that supports next-generation hybrid broadcasting.

公开(公告)号：US10433142B2

公开(公告)日：2019-10-01

申请号：US14588539

申请日：2015-01-02

Applicant: LG ELECTRONICS INC.

Inventor： Jinwon Lee ,  Sejin Oh ,  Kyoungsoo Moon ,  Seungjoo An ,  Woosuk Ko ,  Sungryong Hong

IPC: H04H20/86 ,  H04W4/90 ,  H04H20/08 ,  H04H20/59 ,  H04W4/06 ,  H04L29/08 ,  H04W4/80 ,  H04W88/04

Abstract: Provided is a broadcast receiving device receiving a broadcast service interoperating with a companion device. The broadcast receiving device includes: an IP communication unit configured to establish a pairing session with the companion device; a broadcast communication unit configured to receive an emergency alert message including an emergency alert alerting a disaster situation on the basis of the broadcast service; and a control unit configured to transmit information on the emergency alert message to the companion device.

公开(公告)号：US10411738B2

公开(公告)日：2019-09-10

申请号：US15182220

申请日：2016-06-14

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob Baek ,  Seoyoung Back ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L1/00 ,  H04L27/26 ,  H04B7/06 ,  H03M13/27 ,  H04B7/0456 ,  H04L29/06 ,  H03M13/11 ,  H04L1/08 ,  H04B7/0413

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, formatting, by an input formatting block, input streams into plural PLPs (Physical Layer Pipes); encoding, by an encoder, data in the plural PLPs; processing, by a framing and interleaving block, the encoded data in the plural PLPs to output at least one signal frame; and waveform modulating, by a waveform generation block, data in the at least one signal frame and transmitting, by the waveform generation block, broadcast signals having the waveform modulated data.

公开(公告)号：US10362345B2

公开(公告)日：2019-07-23

申请号：US16003811

申请日：2018-06-08

Applicant: LG ELECTRONICS INC.

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

IPC: H04N21/236 ,  H04N21/2362 ,  H04N21/61 ,  H04N21/643

Abstract: A method for receiving a broadcast signal, performed by an apparatus for receiving the broadcast signal includes receiving the broadcast signal, wherein the broadcast signal includes one or more link layer packets, wherein the one or more link layer packets includes broadcast data for a broadcast service, service level signaling information describing characteristics of the broadcast service, and low level signaling information including information which is used to build a basic service listing, wherein the low level signaling information further includes service level signaling protocol information for indicating a type of delivery protocol of the service level signaling information, wherein the type of the delivery protocol corresponds to a Moving Picture Experts Group (MPEG) media transport (MMT) protocol or a real-time object delivery over unidirectional transport (ROUTE) protocol, and wherein the low level signaling information further includes destination Internet Protocol (IP) address for the service level signaling information, destination User Datagram Protocol (UDP) port number for the service level signaling information, and source IP address for the service level signaling information, parsing the low level signaling information, and parsing the service level signaling information.

公开(公告)号：US10334295B2

公开(公告)日：2019-06-25

申请号：US16011038

申请日：2018-06-18

Applicant: LG ELECTRONICS INC.

Inventor： Chulkyu Mun ,  Jaehyung Kim ,  Hochul Jung ,  Woosuk Ko ,  Sungryong Hong

IPC: H04N7/173 ,  H04N21/2383 ,  H04N21/2389 ,  H04L27/26 ,  H04H20/33 ,  H04B7/0413

Abstract: A method for transmitting broadcast signals by an apparatus for transmitting broadcast signals, the method includes encoding data which is carried by a Data Pipe, DP; bit interleaving the encoded data; Multiple Input Multiple Output, MIMO, processing the bit interleaved data; time interleaving the MIMO processed data; encoding signaling data; building at least one signal frame including signaling symbols having the encoded signaling data and data symbols having the time interleaved 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. In addition, sets of reserved carriers for the PAPR reduction are used in the signaling symbols and the data symbols; and transmitting broadcast signals including the PAPR reduction performed data, further a set of reserved carriers for the signaling symbols is different from a set of reserved carriers for the data symbols.

公开(公告)号：US10291357B2

公开(公告)日：2019-05-14

申请号：US15056716

申请日：2016-02-29

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob Baek ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L1/00 ,  H04L1/04 ,  H04L5/00 ,  H04L27/26 ,  H04L29/06 ,  H04W72/04 ,  H04B7/0413

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 frame builder to build at least one signal frame including the encoded service data, wherein a signal frame includes at least one preamble symbol and at least one sub-frame, a frequency interleaver to frequency interleave data in at least one of the preamble and a sub-frame in the at least one signal frame by using a different interleaving sequence generated based on an interleaving sequence and a symbol offset, a modulator to modulate the frequency interleaved data 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：US10263739B2

公开(公告)日：2019-04-16

申请号：US15428443

申请日：2017-02-09

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob Baek ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L5/00 ,  H04L1/00 ,  H04W4/06 ,  H04L27/26 ,  H04B7/0413

Abstract: An apparatus for transmitting broadcast signals includes an encoder to encode service data, a mapper to map the encoded service data, and a time interleaver to interleave the mapped service data. The time interleaver includes a cell interleaver to interleave cells in a FEC block of the mapped service data, where the cell interleaver performs linearly writing the cells in the FEC block into a memory and randomly reading the cells in the FEC block according to a permutation sequence. The permutation sequence varies in every FEC block by using a shift value. The apparatus also includes a block interleaver to interleave the cell interleaved service data, where the block interleaver includes column-wise writing FEC blocks of the cell interleaved service data into a TI memory, and diagonal-wise reading the FEC blocks from the TI memory by skipping a part of cells included in the TI memory, and a convolutional interleaver to interleave the block interleaved service data.

公开(公告)号：US10263642B2

公开(公告)日：2019-04-16

申请号：US16166978

申请日：2018-10-22

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob Baek ,  Woosuk Ko ,  Seoyoung Back ,  Sungryong Hong

IPC: H03M13/27 ,  H04L1/00 ,  H04L5/00 ,  H04B1/16 ,  H04L12/18 ,  G06F11/10 ,  H03M13/25 ,  H03M13/00 ,  H03M13/11 ,  H03M13/15

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, formatting, by an input formatting block, input streams into plural PLPs (Physical Layer Pipes); encoding, by an encoder, data in the plural PLPs; time interleaving, by a time interleaver, the encoded data in the plural PLPs, wherein the time interleaving includes: cell interleaving, by a cell interleaver, the encoded data by permuting cells in a FEC (Forward Error Correction) block in the plural PLPs; frame mapping, by a framer, the time interleaved data onto at least one signal frame; and waveform modulating, by a waveform block, the mapped data in the at least one signal frame and transmitting, by the waveform block, broadcast signals having the modulated data.

公开(公告)号：US10237108B2

公开(公告)日：2019-03-19

申请号：US15823132

申请日：2017-11-27

Applicant: LG ELECTRONICS INC.

Inventor： Yonghak Suh ,  Sangchul Moon ,  Jongwoong Shin ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H04L27/12 ,  H03M13/11 ,  H03M13/27

Abstract: A method for receiving broadcast signals, includes receiving the broadcast signals, demodulating the received broadcast signals by an Orthogonal Frequency Division Multiplex (OFDM) scheme, parsing a signal frame from the demodulated broadcast signals, and bit deinterleaving data in the parsed signal frame, wherein the bit deinterleaving includes block deinterleaving the data with each set of a number of bit groups. The number of bit groups is based on modulation type. When the modulation type is Quadrature Phase Shift Keying (QPSK), the number of bit groups is 2. When the modulation type is 16 Quadrature Amplitude Modulation (QAM), the number of bit groups is 4. When the modulation type is 64 Quadrature Amplitude Modulation (QAM), the number of bit groups is 6. When the modulation type is 256 QAM, the number of bit groups is 8. When the modulation type is 1024 QAM, the number of bit groups is 10.