公开(公告)号：US11805286B2

公开(公告)日：2023-10-31

申请号：US17173576

申请日：2021-02-11

Applicant: LG ELECTRONICS INC.

Inventor： Sejin Oh ,  Woosuk Kwon ,  Jangwon Lee

IPC: H04N21/2387 ,  H04N21/21 ,  H04N21/235 ,  H04N21/20 ,  H04N21/233 ,  H04N21/232 ,  H04N21/234 ,  H04N21/218 ,  H04N21/236 ,  H04N21/23 ,  H04N21/238 ,  H04L67/02 ,  H04L69/326 ,  H04N21/2381 ,  H04N21/61

CPC classification number: H04N21/2387 ,  H04L67/02 ,  H04L69/326 ,  H04N21/20 ,  H04N21/21 ,  H04N21/218 ,  H04N21/23 ,  H04N21/232 ,  H04N21/233 ,  H04N21/234 ,  H04N21/235 ,  H04N21/236 ,  H04N21/238 ,  H04N21/2353 ,  H04N21/2381 ,  H04N21/23611 ,  H04N21/6125

Abstract: An apparatus for receiving a broadcast signal, the apparatus including a tuner configured to receive transport packets for signaling data and transport packets for delivery objects, a delivery object is a part of a file for video content of a broadcast service: a signaling parser configured to parse the signaling data including session information including an extended file delivery table providing information about delivery of the file, in which the extended file delivery table including file template information: and a data processor configured to generate location information for the file by substituting an identifier in the file template information with a Transport Object Identifier (TOI) in a header of a transport packet for the delivery object. Further, a payload of the transport packet for the delivery object carries a contiguous portion of the delivery object starting from a beginning of a first byte value through a byte value related to a sum of the first byte value and second byte value, the first byte value is a value of start offset information, that is followed by the payload, in the transport packet, and the second byte value is a length of the payload computed by subtracting a size of the header and a size of the start offset information from a total length of the transport packet.

公开(公告)号：US11477259B2

公开(公告)日：2022-10-18

申请号：US17368431

申请日：2021-07-06

Applicant: LG ELECTRONICS INC.

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

IPC: H04N21/236 ,  H04N21/2381 ,  H04N21/242 ,  H04N21/2362 ,  H04N21/2383 ,  H04N21/6437 ,  H04N21/647 ,  H04N21/854 ,  H04N21/8547 ,  H04L65/65 ,  H04H20/18 ,  H04H60/82 ,  H04N21/845 ,  H04L65/611 ,  H04L65/1101 ,  H04L67/02

Abstract: A digital receiver for synchronizing multiple components delivered on a broadband network and a broadcast network, the digital receiver including a broadband network interface configured to receive broadband data including at least one audio component for a service via the broadband network, wherein the at least one audio component relates to a Dynamic Adaptive Streaming over HTTP (DASH) segment, wherein the broadband network comprises an internet network; a broadcast network interface configured to receive a broadcast signal including a video component for the service, first timing information, and second timing information via the broadcast network, wherein the broadcast signal further includes a MPD (Media Presentation Description) having a DASH representation containing a segment URL for the DASH segment delivered over the broadband network; and a processor configured to calculate an offset based on a receiver wall clock, and process at least one of the at least one audio component or the video component which is time-aligned based on the calculated offset.

公开(公告)号：US11445049B2

公开(公告)日：2022-09-13

申请号：US17509417

申请日：2021-10-25

Applicant: LG Electronics Inc.

Inventor： Woosuk Kwon ,  Joonhee Yoon ,  Minsung Kwak

IPC: H04L69/04 ,  H04L69/164 ,  H04L69/168 ,  H04L69/16 ,  H04L69/22

Abstract: A broadcast signal transmission method comprises outputting an RoHC channel that includes one or more RoHC streams and a signaling table that includes information related to header compression by performing header compression for Internet Protocol (IP) packets, which include broadcast data, in accordance with an adaptation mode, a header of each IP packet including an IP header and a User Datagram Protocol (UDP) header, generating at least one first link layer packet that includes the RoHC channel and generating at least one second link layer packet that includes the signaling table, and physical layer processing the at least one first link layer packet and the at least one second link layer packet and transmitting through one or more Physical Layer Pipes (PLPs), wherein the signaling table includes adaptation mode information indicating the adaptation mode, and each RoHC stream in the RoHC channel includes RoHC packets.

公开(公告)号：US11316959B2

公开(公告)日：2022-04-26

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 ,  H04L69/324 ,  H04L65/611 ,  H04L65/65 ,  H04L69/22 ,  H04L69/16 ,  H04H60/73 ,  H04L12/18

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：US11271791B2

公开(公告)日：2022-03-08

申请号：US16824694

申请日：2020-03-19

Applicant: LG ELECTRONICS INC.

Inventor： Woosuk Kwon ,  Minsung Kwak ,  Kyoungsoo Moon

IPC: H04L29/08 ,  H04L29/06 ,  H04N21/234 ,  H04N21/2383 ,  H04N21/643 ,  H04N21/2362 ,  H04L12/24 ,  H04N21/00 ,  H04L12/42 ,  H04L69/323 ,  H04L9/40 ,  H04L65/40 ,  H04L69/04 ,  H04L41/0226 ,  H04L69/08 ,  H04L69/324

Abstract: A method for transmitting a broadcast signal is disclosed. The method for transmitting a broadcast signal according to an embodiment of the present invention includes link layer processing IP/UDP data to output a link layer packet, and physical layer processing the link layer packet based on a PLP.

公开(公告)号：US11234058B2

公开(公告)日：2022-01-25

申请号：US16731616

申请日：2019-12-31

Applicant: LG ELECTRONICS INC.

Inventor： Woosuk Kwon ,  Sejin Oh ,  Kyoungsoo Moon

IPC: H04N21/845 ,  H04N21/61 ,  H04N21/643 ,  H04N21/2381 ,  H04W4/06

Abstract: Provided is a method for transmitting a broadcast signal. The method includes generating a plurality of input packets including broadcast data, generating at least one link layer packet using the input packets, wherein a header of the link layer packet includes packet type information and packet configuration information, the packet type information indicates a type of an input packet included in a payload of the link layer packet, and the packet configuration information indicates a payload configuration of the link layer packet, generating a broadcast signal using the link layer packet, and transmitting the 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：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：US11032400B2

公开(公告)日：2021-06-08

申请号：US16774522

申请日：2020-01-28

Applicant: LG ELECTRONICS INC.

Inventor： Woosuk Kwon ,  Sejin Oh ,  Minsung Kwak ,  Kyoungsoo Moon ,  Jangwon Lee

IPC: H04L29/06 ,  H04N21/235 ,  H04N21/434 ,  H04W4/06 ,  H04L29/08 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/435 ,  H04L29/12

Abstract: A digital broadcast receiver for processing a broadcast signal, includes a tuner configured to receive the broadcast signal including Physical Layer Pipes (PLPs), wherein the PLPs carry link layer packets; and a controller coupled to the tuner, wherein the controller is configured to select and decode a specific PLP, detect and acquire first signaling information for supporting a channel scan and second signaling information for a robust header compression, wherein the second signaling information for the robust header compression includes a PLP identifier, profile information for representing a range of multiple protocols used to compress at least one stream, and a maximum value of a context identifier, select and decode another PLP to receive the at least one stream based on the second signaling information for the robust header compression, and decompress the at least one stream.