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：US20200344101A1

公开(公告)日：2020-10-29

申请号：US16928394

申请日：2020-07-14

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung KIM ,  Woosuk KO ,  Sungryong HONG

IPC: H04L27/26 ,  H04B1/00 ,  H04B7/00 ,  H04L27/22

Abstract: A method for transmitting a broadcast signal includes encoding service data; encoding signaling data; building one or more signal frames including one or more data symbols carrying the encoded service data and one or more preamble symbols carrying the encoded signaling data; modulating the one or more preamble symbols and the one or more data symbols into one or more preamble Orthogonal Frequency Division Multiplex (OFDM) symbols and one or more data OFDM symbols by an OFDM scheme; normalizing average power of the one or more preamble OFDM symbols and the one or more data OFDM symbols in time domain using power normalization factors. Further, a power normalization factor for a preamble OFDM symbol is obtained using frequency domain total power of the preamble OFDM symbol in frequency domain, the frequency domain total power of the preamble OFDM symbol is 7737.10 when a Fast Fourier Transform (FFT) size is 8K, a guard interval length is 1024 samples, separation of scattered pilot bearing carriers is 3 carriers and carrier reduction (Cred) coefficient is 0 for the preamble OFDM symbol. The method also includes transmitting the broadcast signal having OFDM symbols including the one or more preamble OFDM symbols and the one or more data OFDM symbols.

公开(公告)号：US20200336870A1

公开(公告)日：2020-10-22

申请号：US16630415

申请日：2017-10-11

Applicant: LG ELECTRONICS INC.

Inventor： Seoyoung BACK ,  Woosuk KO ,  Seungryul YANG

IPC: H04W4/40 ,  H04L12/741 ,  H04W72/04 ,  H04W72/00 ,  H04L29/06

Abstract: A GeoNetworking transmission method of a V2X communication device is disclosed. The GeoNetworking transmission method includes receiving a beacon packet or a single hop broadcast (SHB) packet; configuring location information, the location information including information about at least one neighboring V2X communication device executing a GeoNetworking protocol; determining a forwarder from the neighboring V2X communication devices included in a location table and setting an address of the determined forwarder to a link layer address; and transmitting a GeoNetworking packet to a first service channel (SCH) based on the link layer address.

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：US20200322650A1

公开(公告)日：2020-10-08

申请号：US16903506

申请日：2020-06-17

Applicant: LG Electronics Inc.

Inventor： Sejin OH ,  Woosuk KO ,  Sungryong HONG

IPC: H04N21/2362 ,  H04N21/236 ,  H04N7/08 ,  H04N21/8352 ,  H04N21/858 ,  H04L12/18 ,  H04L29/12 ,  H04L29/06 ,  H04L29/08

Abstract: The present invention proposes a method for transmitting a broadcast signal. The method for transmitting a broadcast signal according to the present invention proposes a system which may support a next generation broadcast service, in an environment supporting next generation hybrid broadcast that uses a terrestrial broadcast network and an internet network. Further, the present invention proposes an efficient signaling method which can cover both the terrestrial broadcast network and the internet network, in an environment supporting next generation hybrid broadcast.

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.

公开(公告)号：US20200274954A1

公开(公告)日：2020-08-27

申请号：US16871872

申请日：2020-05-11

Applicant: LG ELECTRONICS INC.

Inventor： Seungryul YANG ,  Woosuk KO

IPC: H04L29/06 ,  H04W4/40 ,  H04B7/26 ,  H04L29/08 ,  H04W4/02 ,  G06F40/263

Abstract: A method for receiving a multimedia content message by a vehicle to everything (V2X) communication apparatus, includes receiving a multimedia content message, and acquiring a multimedia content included in the multimedia content message or a content segment which is a part of the multimedia content, wherein the multimedia content message includes a header including a protocol version and a message ID, a management container including information of multimedia content message (MCM) management and multimedia content dissemination (MCD) protocol, a situation container including information for describing an event, a location container including information of the location of the event, and a multimedia container including the multimedia content.

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.