公开(公告)号：US11190846B2

公开(公告)日：2021-11-30

申请号：US16919322

申请日：2020-07-02

Applicant: LG ELECTRONICS INC.

Inventor： Minsung Kwak ,  Seungryul Yang ,  Kyoungsoo Moon ,  Woosuk Ko ,  Sungryong Hong

IPC: H04N21/472 ,  H04N21/236 ,  H04N21/654 ,  H04N21/81 ,  H04N21/84 ,  H04N21/43 ,  H04N21/235 ,  H04N21/254 ,  H04N21/262 ,  H04N21/41 ,  H04N21/64 ,  H04N21/2362 ,  H04N21/258 ,  H04N21/6547 ,  H04L1/00 ,  H04N21/4147 ,  H04N21/643

Abstract: A method for receiving a broadcast signal includes receiving the broadcast signal; frequency deinterleaving data in the broadcast signal based on an address generator the address generator including a sequence generator generating a sequence, a symbol offset generator generating a symbol offset, after applying the symbol offset to the sequence, the sequence to which the symbol offset is applied is checked whether an address of the sequence is within a range for the frequency deinterleaving, the address within the range is used for the frequency deinterleaving; decoding the frequency deinterleaved data of a signal frame in the broadcast signal, the decoded signal frame including one or more components included in a content and content information describing the content, the content information including component information including role information for at least one of an audio component, a video component, a closed caption component or an application component of the one or more components; and displaying information related to the content based on the role information of the one or more components of the content in the decoded broadcast signal.

公开(公告)号：US11166083B2

公开(公告)日：2021-11-02

申请号：US16890708

申请日：2020-06-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04N21/242 ,  H04N21/643 ,  H04N21/845 ,  H04N21/262 ,  H04L12/741 ,  H04L29/12 ,  H04L29/06 ,  H04L29/08 ,  H04N21/2362 ,  H04N21/434 ,  H04N21/84

Abstract: A method includes receiving a broadcast signal including one or more signal frames; parsing the one or more signal frames including one or more service components in DASH (Dynamic Adaptive Streaming over HTTP) format, description information providing mapping between a service component and a DASH representation found in an MPD (Media Presentation Description), and a signaling table, the signaling table including a service identifier identifying the service and bootstrapping information to obtain the MPD and the description information, the description information including a transport session id representing a transport session carrying one or more service components, a DASH representation id representing a DASH representation corresponding to the one or more service components carried in the transport session and an IP address and port information of one or more IP packets that carry the transport session; and parsing the signaling table to obtain the description information and the MPD.

公开(公告)号：US11115708B2

公开(公告)日：2021-09-07

申请号：US16781684

申请日：2020-02-04

Applicant: LG ELECTRONICS INC.

Inventor： Jinwon Lee ,  Seungryul Yang ,  Woosuk Ko ,  Sungryong Hong ,  Minsung Kwak ,  Kyoungsoo Moon ,  Seungjoo An

IPC: H04N21/43 ,  H04N21/436 ,  H04N21/478 ,  H04N21/2362 ,  H04N21/41 ,  H04N21/462 ,  H04N21/81 ,  H04N21/8543 ,  H04N21/858

Abstract: A companion device interoperating with a broadcast reception device for receiving a broadcast service, includes a communication device configured to connect the companion device with the broadcast reception device; and a controller configured to receive emergency alert information from the broadcast reception device, the emergency alert information including identifier information for the emergency alert information, category information of the emergency alert information, and priority information for the emergency alert information, wherein a value of the priority information represents one of 5 levels of priority of the emergency alert information, the 5 levels represents the priority from low priority to high priority, and in response to a change of the priority, the controller receives changed emergency alert information including changed priority information of which a value represents a level of the changed priority.

公开(公告)号：US11075705B2

公开(公告)日：2021-07-27

申请号：US16569860

申请日：2019-09-13

Applicant: LG ELECTRONICS INC.

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

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

Abstract: A method of processing a broadcast signal includes physical layer processing a plurality of packets into a plurality of data pipes to form a signal frame of the broadcast signal. Further, a packet includes an emergency alert message for an emergency alert service so that a data pipe carries the emergency alert massage, the emergency alert message including a message identifier (ID) for identifying the emergency alert message and a service ID identifying a service related to the emergency alert message. The physical layer processing further includes encoding data in each data pipe; bit interleaving the encoded data in each data pipe; and time interleaving the bit interleaved data in each data pipe according to a first mode or a second mode, the first mode represents that the time interleaving is performed based on convolutional interleaving operation, the second mode represents that the time interleaving is performed based on a combination of block interleaving operation and convolutional interleaving operation; and transmitting the broadcast signal. In addition, the broadcast signal further includes physical layer signaling information, the physical layer signaling information including a signaling information representing that the data pipe carries the emergency alert message and time interleaving signaling information related to the first mode and the second mode.

公开(公告)号：US20210194609A1

公开(公告)日：2021-06-24

申请号：US17192581

申请日：2021-03-04

Applicant: LG ELECTRONICS INC.

Inventor： Sejin Oh ,  Woosuk Ko ,  Sungryong Hong ,  Minsung Kwak ,  Woosuk Kwon ,  Jangwon Lee

IPC: H04H20/95 ,  H04N21/2383 ,  H04N21/236 ,  H04N21/438 ,  H04N21/434 ,  H04H60/73 ,  H04L29/06

Abstract: A broadcast signal transmission method includes encoding service data of a service and service layer signaling information that are delivered over a Real-Time Object Delivery over Unidirectional Transport (ROUTE) session, wherein the service layer signaling information includes transport session information containing transport session identifier (TSI) information for the service data and wherein a value of TSI information for the service layer signaling information is zero; and encoding signaling information for one or more services including the service, wherein the signaling information includes one or more service element entries corresponding to the one or more services, wherein a service element entry corresponding to the service includes service information related to the service, and wherein the service information includes service identification information for identifying the service, first version information for indicating a change of the service information, short name information of the service and access information of the ROUTE session.

公开(公告)号：US11032114B2

公开(公告)日：2021-06-08

申请号：US16917105

申请日：2020-06-30

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

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

Abstract: A device for processing a broadcast signal, includes a tuner configured to receive the broadcast signal carrying a bootstrap prefixed to the beginning of a signal frame, the bootstrap including one or more bootstrap symbols, a last bootstrap symbol immediately followed by a preamble of the signal frame including bootstrap termination information, the bootstrap including first information for representing a structure of the preamble; a demodulator configured to demodulate the broadcast signal; a de-framer configured to de-frame the signal frame in the broadcast signal to output the preamble and PLP data, the preamble carrying Layer 1 (L1) signaling data for the signal frame; a signaling decoder configured to decode the L1 signaling data; and a decoder to decode the PLP data based on the L1 signaling data.

公开(公告)号：US10992418B2

公开(公告)日：2021-04-27

申请号：US16860897

申请日：2020-04-28

Applicant: LG Electronics Inc.

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

IPC: H04L1/00 ,  H04B1/04 ,  H04L27/26 ,  H04B7/0413 ,  H03M13/00 ,  H03M13/25 ,  H03M13/27 ,  H04L5/00 ,  H04L12/18 ,  H03M13/15 ,  H03M13/11 ,  H03M13/29

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 a number of physical paths, a time interleaver to time interleave the encoded service data in each physical path, 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 transmitting the broadcast signals having the modulated data.

公开(公告)号：US10944492B2

公开(公告)日：2021-03-09

申请号：US16725066

申请日：2019-12-23

Applicant: LG ELECTRONICS INC.

Inventor： Minsung Kwak ,  Seungryul Yang ,  Woosuk Ko ,  Sungryong Hong

IPC: H04H20/71 ,  H04H20/42 ,  H04L29/06 ,  H04H60/72 ,  H04H20/59 ,  H04L29/12

Abstract: A method for delivering data in a transmitter includes generating service layer signaling (SLS) information comprising information for discovery and acquisition of at least one content component, wherein the SLS information and the at least one content component are carried based on a Real-Time Object Delivery over Unidirectional Transport (ROUTE) protocol or an MPEG Media Transport (MMT) protocol; generating service list table (SLT) information comprising bootstrap information for acquiring the SLS information; encapsulating the at least one content component, the SLS information and the SLT information; and transmitting a broadcast signal comprising the at least one content component, the SLS information and the SLT information.

公开(公告)号：US10924314B2

公开(公告)日：2021-02-16

申请号：US15391589

申请日：2016-12-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04H20/71 ,  H04L1/00 ,  H04L27/34 ,  H04B7/0413 ,  H03M13/11 ,  H03M13/15 ,  H03M13/27 ,  H03M13/29

Abstract: A method of transmitting a broadcast signal includes encoding data which is carried by Data Pipes (DPS); mapping the encoded data to constellations; interleaving the mapped data by skipping virtual cells based on a memory address for the interleaving; building at least one signal frame having symbols including the interleaved data; frequency interleaving cells of the symbols in the at least one signal frame; modulating the at least one signal frame including the frequency interleaved cells of the symbols by an orthogonal frequency division multiplexing (OFDM) scheme; and transmitting the broadcast signal including the modulated at least one signal frame.

公开(公告)号：US10862726B2

公开(公告)日：2020-12-08

申请号：US16135878

申请日：2018-09-19

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob Baek ,  Woosuk Ko ,  Sungryong Hong

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

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, wherein the signal frame includes service data corresponding to each of a plurality of physical paths, a time deinterleaver to time deinterleave service data in each physical path by a TI (Time Interleaving) block, wherein the time deinterleaver further performs inserting at least one virtual FEC block into at least one TI block of the service data, wherein each TI block includes a variable number of FEC blocks of the 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 and a decoder to decode the time deinterleaved service data.