公开(公告)号：US11631158B2

公开(公告)日：2023-04-18

申请号：US17182933

申请日：2021-02-23

Applicant: LG Electronics Inc.

Inventor： Jinwon Lee ,  Sejin Oh

IPC: G06T3/40 ,  G06T9/00 ,  G06T17/20

Abstract: Disclosed herein is a transmitting method and a receiving method of point cloud data. The transmitting method may include encoding point cloud data, encapsulating a bitstream that includes the encoded point cloud data into a file, and transmitting the file, the point cloud data include at least geometry data, attribute data, or an occupancy map data, the bitstream is stored in multiple tracks of the file, the file further includes signaling data, and the signaling data include spatial region information of the point cloud data.

公开(公告)号：US11553066B2

公开(公告)日：2023-01-10

申请号：US17012978

申请日：2020-09-04

Applicant: LG ELECTRONICS INC.

Inventor： Woosuk Kwon ,  Sejin Oh ,  Kyoungsoo Moon

IPC: H04L29/08 ,  H04L69/324 ,  H04L69/04 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/414 ,  H04N21/434 ,  H04N21/435 ,  H04N21/438 ,  H04N21/61 ,  H04N21/643 ,  H04L69/14

Abstract: A method for transmitting a broadcast signal, includes compressing headers of Internet Protocol (IP) packets in an IP packet stream to output a compressed IP packet stream, the compressed IP packet stream including Initialization Refresh (IR) packets, a first group of IR-dynamic packets, and compressed IP packets; extracting context information from the compressed IP packet stream, wherein when the context information is extracted only from the IR packets in the compressed IP packet stream, the IR packets are converted to a second group of IR-dynamic packets; building signaling information including the context information; and encapsulating the signaling information into one or more signaling link layer packets and the compressed IP packet stream into link layer packets that are distinct from the one or more signaling link layer packets.

公开(公告)号：US11483363B2

公开(公告)日：2022-10-25

申请号：US17104612

申请日：2020-11-25

Applicant: LG Electronics Inc.

Inventor： Hyejung Hur ,  Sejin Oh ,  Donggyu Sim ,  Joohyung Byeon

IPC: H04L29/06 ,  H04L65/70 ,  G06T3/40 ,  G06T9/00 ,  H04L65/75 ,  G06T9/40

Abstract: Disclosed herein are a point cloud data transmission method including encoding point cloud data, and transmitting a bitstream containing the point cloud data, and a point cloud data reception method including receiving a bitstream containing point cloud data, and decoding the point cloud data.

公开(公告)号：US11363248B2

公开(公告)日：2022-06-14

申请号：US16494749

申请日：2017-07-25

Applicant: LG ELECTRONICS INC.

Inventor： Jangwon Lee ,  Sejin Oh ,  Hyunmook Oh ,  Soojin Hwang

IPC: H04N13/00 ,  H04N13/161 ,  H04N13/178 ,  H04N13/194 ,  H04N19/103 ,  H04N19/433 ,  H04N19/55 ,  H04N19/577 ,  H04N19/65 ,  H04N19/40 ,  H04N19/96 ,  H04N19/186

Abstract: A 360-degree video data processing method performed by a 360-degree video transmission device, according to the present invention, comprises the steps of: acquiring 360-degree video data; processing the 360-degree video data so as to acquire a 2D picture; dividing the 2D picture so as to derive sub-pictures; generating metadata for the 360-degree video data; encoding at least one of the sub-pictures; and performing processing for storing or transmitting the encoded at least one sub-picture and the metadata, wherein the metadata includes position information of the sub-picture on the 2D picture.

公开(公告)号：US11328440B2

公开(公告)日：2022-05-10

申请号：US17157198

申请日：2021-01-25

Applicant: LG Electronics Inc.

Inventor： Hyejung Hur ,  Sejin Oh

IPC: G06T7/60 ,  G06T17/00

Abstract: Disclosed herein is a method of transmitting point cloud data. The method may include acquiring point cloud data, encoding geometry information including positions of points of the point cloud data, generating one or more LODs based on the geometry information and selecting one or more neighbor points of each point to be attribute-encoded based on the one or more LODs, wherein the selected one or more neighbor points of each point are located within a maximum neighbor point distance, encoding attribute information of each point based on the selected one or more neighbor points of each point, and transmitting the encoded geometry information, the encoded attribute information, and signaling information.

公开(公告)号：US11323755B2

公开(公告)日：2022-05-03

申请号：US17162107

申请日：2021-01-29

Applicant: LG Electronics Inc.

Inventor： Sejin Oh ,  Soojin Hwang ,  Jongyeul Suh

IPC: H04N11/04 ,  H04N21/2343 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/643 ,  H04N21/845

Abstract: The present invention presents a method for transmitting a broadcast signal. The method for transmitting a broadcast signal, according to the present invention, presents a system capable of supporting a next-generation broadcast service in an environment supporting next-generation hybrid broadcasting using a terrestrial broadcast network and an Internet network. In addition, presented is an efficient signaling method capable of covering both the terrestrial broadcast network and the Internet network in the environment supporting the next-generation hybrid broadcasting.

公开(公告)号：US11296901B2

公开(公告)日：2022-04-05

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 ,  H04L67/06 ,  H04L65/611 ,  H04L65/612 ,  H04L65/60 ,  H04L69/24 ,  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：US11265619B2

公开(公告)日：2022-03-01

申请号：US17031308

申请日：2020-09-24

Applicant: LG ELECTRONICS INC.

Inventor： Seungjoo An ,  Kyoungsoo Moon ,  Jinwon Lee ,  Woosuk Ko ,  Sejin Oh ,  Donghyun Kang ,  Sungryong Hong

IPC: H04N21/81 ,  H04N21/8358 ,  H04N21/462 ,  H04N21/858 ,  H04N21/41 ,  H04H20/93 ,  H04N21/2389 ,  H04N21/235 ,  H04N21/2383 ,  H04N21/643 ,  H04N21/8547 ,  H04H60/13

Abstract: A method of processing supplementary content in a digital receiving apparatus, includes connecting to an external device being different from a broadcaster; receiving uncompressed audio/video (A/V) content from the external device being different from the broadcaster; extracting audio watermark from the uncompressed A/V content, wherein the audio watermark includes domain type information, time information and event flag, further the event flag is used to signal when an event is available, and the event flag is 1-bit; constructing a first uniform resource locator (URL) based on the audio watermark; transmitting a request to a remote server based on the first URL; receiving a second URL for the supplementary content from the remote server; and presenting the supplementary content based on the second URL.

公开(公告)号：US11206387B2

公开(公告)日：2021-12-21

申请号：US17065957

申请日：2020-10-08

Applicant: LG ELECTRONICS INC.

Inventor： Hyunmook Oh ,  Sejin Oh

IPC: H04N13/194 ,  H04N13/178 ,  H04N13/122 ,  H04N13/161 ,  H04N5/232

Abstract: According to one aspect of the present invention, the present invention may relate to a method for transmitting a 360 video. The method for transmitting a 360 video may include processing a plurality of circular images captured by a camera having at least one fisheye lens; encoding a picture to which the circular images are mapped; generating signaling information about the 360 video data; encapsulating the encoded picture and the signaling information into a file, and transmitting the file.

公开(公告)号：US11200906B2

公开(公告)日：2021-12-14

申请号：US16644416

申请日：2017-11-14

Applicant: LG ELECTRONICS INC.

Inventor： Tung Chin Lee ,  Sejin Oh

IPC: G10L19/008 ,  G10L19/16 ,  H04S3/00 ,  H04S7/00 ,  G10L25/03

Abstract: Disclosed are an audio encoding method, to which BRIR/RIR parameterization is applied, and a method and device for reproducing audio by using parameterized BRIR/RIR information. The audio encoding method according to the present invention comprises the steps of: when an input audio signal is a binaural room impulse response (BRIR), dividing the input audio signal into a room impulse response (RIR) and a head-related impulse response (HRIR); applying a mixing time to the divided RIR or an RIR, which is input without division when the audio signal is the RIR, and dividing the mixing time-applied RIR into a direct/early reflection part and a late reverberation part; parameterizing a direct part characteristic on the basis of the divided direct/early reflection part; parameterizing an early reflection part characteristic on the basis of the divided direct/early reflection part; parameterizing a late reverberation part characteristic on the basis of the divided late reverberation part; and when the input audio signal is the BRIR, adding the divided HRIR and information of the parameterized RIR characteristic to an audio bitstream, and transmitting the same.