公开(公告)号：US20200260161A1

公开(公告)日：2020-08-13

申请号：US16859011

申请日：2020-04-27

Applicant: LG ELECTRONICS INC.

Inventor： Seungryul YANG ,  Kyoungsoo MOON ,  Woosuk KO ,  Sungryong HONG

IPC: H04N21/858 ,  H04H20/59 ,  H04N21/258 ,  H04H20/42 ,  H04H20/93 ,  H04H60/40 ,  H04H60/72 ,  H04H60/73 ,  H04N21/643 ,  H04N21/2383 ,  H04N21/41 ,  H04N21/233 ,  H04N21/234 ,  H04N21/2387 ,  H04N21/239 ,  H04N21/439 ,  H04N21/44 ,  H04N21/472

Abstract: A method for communicating with a companion device (CD) in a primary device (PD) includes receiving a broadcast signal from a broadcast station; generating a multicast advertisement message based on a simple service discovery protocol (SSDP) when the PD joins a network and sending the multicast advertisement message to a pre-defined address. Further, the multicast advertisement message includes duration information for which the multicast advertisement message is valid, further the duration information is signaled in a cache-control header. The multicast advertisement message further includes identifier information which uniquely identifies the PD, further the identifier information is signaled in a USN header, and the multicast advertisement message further includes device type information, further the device type information is signaled in a NT header.

公开(公告)号：US20200229138A1

公开(公告)日：2020-07-16

申请号：US16829474

申请日：2020-03-25

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/00 ,  H04W4/06 ,  H04L1/00 ,  H04N21/00 ,  H04L5/00 ,  H04L29/06 ,  H04L27/26

Abstract: A method for transmitting a broadcast signal in a digital broadcast transmitter, includes generating components of a service, wherein the components of the service includes audio data or video data; generating first signaling information including S-TSID (Service-based Transport Session Instance Description) information for at least one Real-Time Object Delivery over Unidirectional Transport (ROUTE) session and at least one Layered Coding Transport (LCT) channel in which the components of the service are delivered, wherein the S-TSID information includes first source Internet Protocol (IP) address information of the at least one ROUTE session, first destination IP address information of the at least one ROUTE session, first destination port information of the at least one ROUTE session, and transport session identification information for the at least one LCT channel; and generating second signaling information which is used for acquiring the first signaling information,

公开(公告)号：US20200228387A1

公开(公告)日：2020-07-16

申请号：US16730438

申请日：2019-12-30

Applicant: LG Electronics Inc.

Inventor： Minsung KWAK ,  Seungryul YANG ,  Woosuk KO ,  Woosuk KWON ,  Kyoungsoo MOON ,  Jangwon LEE ,  Sungryong HONG

IPC: H04L29/08 ,  H04L29/06

Abstract: Disclosed is a method for transmitting a broadcast signal. A method for transmitting a broadcast signal according to an embodiment of the present invention comprises the steps of: delivery layer processing broadcasting service data and signaling information for the broadcasting service data; UDP/IP encapsulating the broadcasting service data and signaling information for the broadcasting service data; and physical layer processing the broadcasting service data and signaling information for the broadcasting service data.

公开(公告)号：US20200221163A9

公开(公告)日：2020-07-09

申请号：US16190051

申请日：2018-11-13

Applicant: LG ELECTRONICS INC.

Inventor： Sanghyun KIM ,  Jongyeul SUH ,  Kwansuk KIM ,  Joonhui LEE ,  Jaehee CHUNG ,  Hyeonjae LEE ,  Jinpil KIM ,  Dongwan SEO ,  Kyoungsoo MOON ,  Aettie JI ,  Youngjae SEO ,  Kyungho KIM ,  Sungok PARK

IPC: H04N21/437 ,  H04N21/81 ,  H04N21/239 ,  H04N21/6377 ,  H04N21/439 ,  H04N21/2665 ,  H04N21/435 ,  H04N21/426 ,  H04N21/44 ,  H04N21/43 ,  H04N21/4722

Abstract: Provided are a method of receiving an enhanced service and a video display device thereof. The method includes: receiving an audio-visual (AV) content; extracting first feature information from the received AV content; receiving a database including at least one of content information, enhanced service information, and an enhanced service, which correspond to the first feature information, from a first server by transmitting the extracted first feature information to the first server; storing the database received from the first server in a memory; extracting second feature information from the received AV content; and searching and obtaining one of content information, enhanced service information, and an enhanced service, which correspond to the extracted feature information, from the database.

公开(公告)号：US20200213646A1

公开(公告)日：2020-07-02

申请号：US16811594

申请日：2020-03-06

Applicant: LG ELECTRONICS INC.

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

IPC: H04N21/236 ,  H04W4/06 ,  H04L12/18 ,  H04N21/643 ,  H04N21/2385 ,  H04N21/2383

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, generating input packets including broadcast content data; generating a link layer packet by using the generated input packets, wherein the link layer packet includes a link layer header and a link layer payload including the generated input packets, wherein the link layer header includes a count field indicating number of the input packets included in the link layer payload, wherein the link layer header further includes a length part, wherein the length part includes a plurality of length fields as many as that the count field indicates, wherein each of the length fields indicates length of the each input packets included in the link layer payload; generating a broadcast signal including the generated link layer packet; and transmitting the broadcast signal.

公开(公告)号：US20200177515A1

公开(公告)日：2020-06-04

申请号：US16781347

申请日：2020-02-04

Applicant: LG ELECTRONICS INC.

Inventor： Woosuk KWON ,  Kyoungsoo MOON

IPC: H04L12/823 ,  H04L29/06 ,  H04L12/18 ,  H04N21/438 ,  H04N21/2381 ,  H04N21/2362

Abstract: A method for transmitting a broadcast signal in a digital transmitter includes processing a link layer packet. In addition, the link layer packet includes a header and a payload, the header includes a base header, the base header includes packet type information for representing a first packet type, and segmentation concatenation information for representing that the payload carries a segment of a single input packet or multiple input packets, when the packet type information is used to represent a packet type extension, the header further includes an additional header for type extension, the additional header for type extension includes extended type information for representing a second packet type being different from a compressed IP (internet protocol) packet, an IPv4 packet or an MPEG (Moving Picture Experts Group)-2 transport stream, and when the payload carries the multiple input packets, the header further includes an additional header for concatenation, the additional header for concatenation includes count information for representing a number of the multiple input packets included in the link layer packet, and a value of the count information is set to a number of the multiple input packets included in the link layer packet subtracted by two; and transmitting the broadcast signal.

公开(公告)号：US20200153943A1

公开(公告)日：2020-05-14

申请号：US16743542

申请日：2020-01-15

Applicant: LG ELECTRONICS INC.

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

IPC: H04L29/06 ,  H04N21/434 ,  H04L29/08 ,  H04N21/2362 ,  H04H20/33 ,  H04N21/6336 ,  H04N21/2383

Abstract: A method for transmitting a broadcast signal includes generating a packet carrying a broadcast service and service signaling information, and a packet carrying fast information for supporting rapid service scans and service acquisition, the fast information including identification information for identifying the broadcast service, service category information representing a category of the broadcast service and hidden information representing whether or not the broadcast service is related to a test service; generating a robust header compression (RoHC) packet by compressing a header of each packet, and signaling information including context information generated from the compressing the header of each packet; and transmitting a RoHC packet stream comprising the RoHC packet through a first Physical Layer Pipe (PLP), and the signaling information through a second PLP which is separate from the first PLP.

公开(公告)号：US20200067725A1

公开(公告)日：2020-02-27

申请号：US16674796

申请日：2019-11-05

Applicant: LG ELECTRONICS INC.

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

IPC: H04L12/18 ,  H04L29/08 ,  H04W4/06 ,  H04W28/02 ,  H04L29/06

Abstract: A broadcast signal transmission method includes generating, by a packetizer, a first transport packet carrying one or more fragments of a delivery object and a second transport packet carrying signaling data based on an ALC/LCT scheme. In addition, a header of the first transport packet includes offset information representing a starting byte position of a fragment of the delivery object included in the first transport packet, the header of the first transport packet includes Transport Object Identifier (TOI) information that is mapped to Uniform Resource Locator (URL) information for the delivery object described in the signaling data, the signaling data includes a real-time attribute representing whether the delivery object transmits a real-time content, and content type information presenting a type of a content; processing one or more IP packets including the first transport packet and the second transport packet to generate a broadcast signal, the processing includes encoding data in the one or more IP packets to output data of one or more Data Pipes, and interleaving data of a Data Pipe by a Time Interleaving (TI) block based on one or more virtual Forward Error Correction (FEC) blocks, frequency interleaving the interleaved data of the Data pipe; and transmitting, by a transmitter, the broadcast signal. Further, the signaling data is delivered in a transmission session separate from the delivery object.

公开(公告)号：US20200045379A1

公开(公告)日：2020-02-06

申请号：US16559144

申请日：2019-09-03

Applicant: LG ELECTRONICS INC.

Inventor： Seungryul YANG ,  Minsung KWAK ,  Woosuk KO ,  Sungryong HONG ,  Kyoungsoo MOON

IPC: H04N21/8358 ,  H04L29/06 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/2389 ,  H04N21/643 ,  H04N21/61 ,  H04N21/443

Abstract: A broadcast signal transmission method is disclosed. The broadcast signal transmission method according to one embodiment of the present invention comprises the steps of: processing video data and audio data; encoding a broadcast service component, including the video data and audio data, and service layer signaling (SLS) information on the broadcast service component on the basis of a delivery protocol; subjecting the broadcast service component, the SLS information, and service list table (SLT) information to IP packetization; and subjecting the broadcast service component, the SLS information, and the SLT information to physical layer processing.

公开(公告)号：US20200044758A1

公开(公告)日：2020-02-06

申请号：US16597088

申请日：2019-10-09

Applicant: LG ELECTRONICS INC.

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

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

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.