公开(公告)号：US11212772B2

公开(公告)日：2021-12-28

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: H04W4/00 ,  H04W72/00 ,  H04W4/06 ,  H04L1/00 ,  H04N21/00 ,  H04L5/00 ,  H04L29/06 ,  H04L27/26 ,  H04L1/08

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 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 session instance description 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：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：US11158107B2

公开(公告)日：2021-10-26

申请号：US17062995

申请日：2020-10-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyejung Hur ,  Sejin Oh

IPC: G06T15/00 ,  G06T19/00 ,  H04N13/15 ,  H04N13/161

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 in the point cloud data, generating Level Of Details (LODs) based on the geometry information and searching neighbor points of each point to be attribute encoded based on the generated LODs, encoding first attribute information of each point based on the searched neighbor points, encoding second attribute information of each point based on the searched neighbor points, and transmitting the encoded geometry information, the encoded first and second attribute information and signaling information.

公开(公告)号：US11140373B2

公开(公告)日：2021-10-05

申请号：US16958033

申请日：2019-04-03

Applicant: LG ELECTRONICS INC.

Inventor： Hyunmook Oh ,  Sejin Oh

IPC: H04N13/117 ,  H04N13/161 ,  H04N13/178 ,  H04N13/194

Abstract: A 360-degree video data processing method performed by a 360-degree video reception apparatus, according to the present invention, comprises the steps of: receiving 360-degree video data for a plurality of views; deriving metadata and information on a packed picture; decoding the packed picture based on the information on the packed picture; deriving a specific packed region for a target view from the packed picture based on the metadata; deriving a projected picture of the target view based on the specific packed region and the metadata; and rendering the projected picture based on the metadata, wherein the metadata includes multiview region-wise packing information, and wherein the multiview region-wise packing information includes information about a packed region in the packed picture and information about the target view.

公开(公告)号：US11089425B2

公开(公告)日：2021-08-10

申请号：US16626692

申请日：2017-11-14

Applicant: LG ELECTRONICS INC.

Inventor： Tung Chin Lee ,  Sejin Oh

IPC: H04S7/00 ,  G10L19/008 ,  H04R5/02 ,  H04R5/04 ,  H04S1/00 ,  H04S3/00

Abstract: The present invention pertains to an audio playback method and an audio playback apparatus in a 6DoF environment. The audio playback method of the present invention is characterised by comprising: a decoding step of decoding a received audio signal, and outputting the decoded audio signal and metadata; a modelling step of receiving input of position information of a user, checking whether the position of the user has changed from a previous position, and if the position of the user has changed, modelling binaural rendering data so as to correspond to the changed position of the user; and a rendering step of binaural-rendering the decoded audio signal using the modelled rendering data, and outputting the same as a two-channel audio signal. The audio playback method and apparatus in a 6DoF environment according to an embodiment of the present invention uses position change information of a user, changes the volume and depth of a sound source together according to the position of a user, and can thereby facilitate playback of a stereoscopic and realistic audio signal.

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.

公开(公告)号：US11032015B2

公开(公告)日：2021-06-08

申请号：US16806725

申请日：2020-03-02

Applicant: LG ELECTRONICS INC.

Inventor： Sejin Oh ,  Jeongwoo Kim ,  Minsung Kwak

IPC: H04H20/59 ,  H04W4/90 ,  H04H20/71 ,  H04L1/00 ,  H04W72/00 ,  H04H20/72

Abstract: A method of processing an emergency alert in a broadcast receiver includes receiving a broadcast signal including an emergency alert table, the emergency alert table including an emergency alert text related to an emergency alert message, information for identifying a viewing target for the emergency alert message and emergency-related broadcast service information for an emergency-related broadcast service, decoding the emergency alert table, displaying the emergency alert text in the decoded emergency alert table, and displaying an additional content related to the emergency alert message. The broadcast signal further includes wake-up information that includes 2 bits representing at least a first wake-up notification of a first emergency or a second wake-up notification of a second emergency different from the first wake-up notification of the first emergency.

公开(公告)号：US11017591B2

公开(公告)日：2021-05-25

申请号：US16912935

申请日：2020-06-26

Applicant: LG Electronics Inc.

Inventor： Sejin Oh

IPC: G06T17/00 ,  G06T7/60

Abstract: Disclosed is a method of transmitting point cloud data including encoding point cloud data, and transmitting a bitstream containing the point cloud data. Disclosed is a method of receiving point cloud data may include receiving a bitstream containing point cloud data, and decoding the point cloud data.

公开(公告)号：US10965928B2

公开(公告)日：2021-03-30

申请号：US16767558

申请日：2018-07-31

Applicant: LG ELECTRONICS INC.

Inventor： Sooyeon Lee ,  Sejin Oh

IPC: H04N13/117 ,  H04N13/268 ,  H04N13/178 ,  H04N21/236 ,  H04N21/81 ,  H04N21/858 ,  G06T15/08 ,  G06T15/20 ,  G06T19/00

Abstract: A method for 360 video data processing based on multiple viewpoints performed by a 360 video receiving apparatus according to the present invention comprises the steps of: acquiring, from received video signals, image information for pictures of multiple viewpoints-based 360 videos and metadata for the multiple viewpoints-based 360 videos, wherein the metadata includes multiple viewpoint information; decoding an image of a first viewport of a first viewpoint on the basis of the metadata and the image information; rendering the image of the first viewport into a 3D space; decoding an image of a second viewport of a second viewpoint on the basis of the metadata and the image information; deriving, in a case in which the hotspot in the first viewport is selected, the second viewport in the second viewpoint connected through a hotspot on the basis of the multiple viewpoint information; and rendering the image of the second viewport into the 3D space.