公开(公告)号：US20220103274A1

公开(公告)日：2022-03-31

申请号：US17545751

申请日：2021-12-08

Applicant: LG ELECTRONICS INC.

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

IPC: H04H60/76 ,  H04L29/06 ,  H04H60/09 ,  H04H60/35 ,  H04H60/72 ,  H04L29/08

Abstract: A method for processing a broadcast service at a Primary Device (PD), the method including performing, by a companion manager of the PD, a discovery process with a Companion Device (CD) application in a CD by receiving a discovery request from the CD and providing an endpoint for a WebSocket server of the PD; handling, by the WebSocket server, a connection established by the CD application based on the endpoint; in response to receiving a query for a current service from the CD, transmitting, by the WebSocket server, a response including information representing the current service to the CD application based on the connection; receiving, by a tuner, a broadcast signal having signaling information including flag information to obtain emergency data in the broadcast signal; time de-interleaving, by a time de-interleaver, Forward Error Correction (FEC) blocks including the emergency data based on a Time Interleaving (TI) block, wherein the FEC blocks are de-interleaved based on positions for the FEC blocks and one or more virtual FEC blocks; and transmitting, by the Websocket server, a notification message including the emergency data to the CD, in which the notification message includes a category for the emergency data.

公开(公告)号：US20220006885A1

公开(公告)日：2022-01-06

申请号：US17480708

申请日：2021-09-21

Applicant: LG ELECTRONICS INC.

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

IPC: H04L29/08 ,  H04H60/73 ,  H04L29/06

Abstract: A method for transmitting a broadcast signal in a digital broadcast transmitter includes generating at least one link layer packet including a header and a payload; and transmitting the broadcast signal carrying the link layer packet. Further, the header includes a fixed header having a fixed length and the fixed header includes packet type information of input data before encapsulation into the layer packet, further the input data relates to an IP packet or a signaling packet.

公开(公告)号：US20210314076A1

公开(公告)日：2021-10-07

申请号：US17345873

申请日：2021-06-11

Applicant: LG ELECTRONICS INC.

Inventor： Minsung KWAK ,  Kyoungsoo MOON ,  Woosuk KWON ,  Woosuk KO ,  Sungryong HONG

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

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：US20210185486A1

公开(公告)日：2021-06-17

申请号：US17188398

申请日：2021-03-01

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/06 ,  H04L1/00 ,  H04H20/00 ,  H04L29/06

Abstract: A method of transmitting broadcast signals, includes link layer processing input packets to generate link layer packets, wherein a link layer packet of the link layer packets includes a header and a payload, wherein the payload of the link layer packet includes a segment of an input packet or concatenated input packets, wherein the header of the link layer packet includes a first field for identifying whether the payload includes the segment or the concatenated input packets, wherein the header further includes a second field for identifying a number of the concatenated input packets and third fields that are included in the header in the same order as the concatenated input packets present in the payload in response to the first field representing that the payload includes the concatenated input packets, and wherein the third fields represent a length of each of the concatenated input packets.

公开(公告)号：US20210075893A1

公开(公告)日：2021-03-11

申请号：US16950108

申请日：2020-11-17

Applicant: LG ELECTRONICS INC.

Inventor： Woosuk KWON ,  Sejin OH ,  Kyoungsoo MOON

IPC: H04L29/08 ,  H04L29/06

Abstract: A method for transmitting a broadcast signal in a digital transmitter includes generating a link layer packet; generating the broadcast signal based on the link layer packet; and transmitting the broadcast signal. Further, the link layer packet includes at least one header and a payload, in which the at least one header includes a packet type field, and the packet type field represents a type of input data before encapsulation into the link layer packet. In addition, in response to the packet type field represents that the input data relates to a Movie Picture Experts Group-2 (MPEG-2) Transport Stream (TS) packet, a first header included in the link layer packet includes a deleted null packet indicator for representing the number of deleted null TS packets prior to the link layer packet.

公开(公告)号：US20210044446A1

公开(公告)日：2021-02-11

申请号：US17078434

申请日：2020-10-23

Applicant: LG ELECTRONICS INC.

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

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

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 Asynchronous Layered Coding/Layered Coding Transport (ALC/LCT) scheme. Further, 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 and Transport Session Identifier (TSI) information for identifying a transport session, and the signaling data includes content type information presenting a type of a content.

公开(公告)号：US20200336792A1

公开(公告)日：2020-10-22

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 ,  H04N21/2362 ,  H04N21/258 ,  H04N21/6547 ,  H04N21/81 ,  H04N21/84 ,  H04N21/43 ,  H04L1/00 ,  H04N21/235 ,  H04N21/254 ,  H04N21/262 ,  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：US20200329077A1

公开(公告)日：2020-10-15

申请号：US16913584

申请日：2020-06-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04L29/06 ,  H04L29/08 ,  H04H20/72 ,  H04N21/2362 ,  H04N21/434 ,  H04H20/42 ,  H04H60/07 ,  G06F16/95 ,  H04H60/72 ,  H04L5/00

Abstract: A broadcast transmission method includes generating service data for a service, generating service layer signaling data, the service layer signaling data including first signaling data, second signaling data and third signaling data, the first signaling data including reference information referring to the second signaling data and the third signaling data, the second signaling data including a description of a component of the service, and the third signaling data including acquisition information of the component related to the service, and transmitting a broadcast signal including the service data and the service layer signaling data.

公开(公告)号：US20200314459A1

公开(公告)日：2020-10-01

申请号：US16900518

申请日：2020-06-12

Applicant: LG ELECTRONICS INC.

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

IPC: H04N21/235 ,  H04N21/434 ,  H04N21/2383 ,  H04H60/07 ,  H04H60/73 ,  H04N21/2343 ,  H04N21/61

Abstract: A method of processing a broadcast signal in a transmitting system, includes encoding broadcast data for broadcast services; encoding first signaling information providing information for discovery and acquisition of a broadcast service; encoding second signaling information including service entries for the broadcast services, wherein one of the service entries includes a first service identifier for identifying the broadcast service and bootstrap information for discovering a transport session carrying the first signaling information, wherein the bootstrap information includes destination Internet Protocol (IP) address information of the transport session carrying the first signaling information and destination port number information of the transport session carrying the first signaling information; and encoding physical layer signaling information including first physical layer signaling information having a fixed size and second physical layer signaling information having a variable size.

公开(公告)号：US20200275164A1

公开(公告)日：2020-08-27

申请号：US16866128

申请日：2020-05-04

Applicant: LG ELECTRONICS INC.

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

IPC: H04N21/6437 ,  H04N21/2381 ,  H04N21/61 ,  H04L29/06 ,  H04L1/00 ,  H04N21/43 ,  H04N21/8547

Abstract: A digital broadcast receiver for receiving a broadcast signal, includes a tuner configured to receive the broadcast signal carrying a transport packet, wherein the transport packet consists of at least one packet payload and at least one packet header; a frequency deinterleaver configured to frequency deinterleave symbols of a signal frame in the broadcast signal based on addresses generated by checking a range of a deinterleaving sequence that is generated based on a main sequence and a symbol offset, wherein the signal frame includes a first symbol for signaling data and a second symbol for service data; and a processor configured to extract the at least one packet header, wherein a first extension header is included in the at least one packet header, further the first extension header includes timestamp information having a 64-bit format depending on a specific value also included in the first extension header.