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：US20210049828A1

公开(公告)日：2021-02-18

申请号：US16994310

申请日：2020-08-14

Applicant: LG ELECTRONICS INC.

Inventor： Yousun PARK ,  Sejin OH ,  Hyejung HUR

IPC: G06T19/20 ,  G06T17/00 ,  H04N19/124 ,  H04N19/184

Abstract: Disclosed herein is a point cloud data reception device including a receiver configured to receive a bitstream containing geometry data of point cloud data and/or attribute data of the point cloud data, and/or a decoder configured to decode the point cloud data in the bitstream. Disclosed herein is a point cloud data transmission device including an encoder configured to encode point cloud data, and/or a transmitter configured to transmit a bitstream containing the point cloud data and/or signaling information about the point cloud data.

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：US20200382758A1

公开(公告)日：2020-12-03

申请号：US16607305

申请日：2017-08-08

Applicant: LG ELECTRONICS INC.

Inventor： Hyunmook OH ,  Sejin OH

IPC: H04N13/178 ,  H04N13/161 ,  H04N13/117 ,  H04N13/282

Abstract: A 360-degree video data processing method, which is performed by a 360-degree video transmission device, according to the present invention, comprises the steps of: acquiring 360-degree video data which are captured by at least one camera; acquiring a projected picture by processing the 360-degree video data; acquiring a packed picture by applying a region-specific packing process to the projected picture; generating metadata for the 360-degree video data; encoding the packed picture; encoding the packed picture; and performing a process of storage or transmission for the encoded picture and the metadata, wherein the packed picture includes at least one region-specific additional information region for a target region of the packed picture, and the metadata include information for indicating a type of RAI region.

公开(公告)号：US20200382757A1

公开(公告)日：2020-12-03

申请号：US16960224

申请日：2019-01-23

Applicant: LG ELECTRONICS INC.

Inventor： Hyunmook OH ,  Sejin OH

IPC: H04N13/161 ,  H04N13/194 ,  H04N13/178 ,  G02B27/00

Abstract: A 360-degree image data processing method performed by a 360-degree video reception apparatus according to the present invention comprises the steps of: receiving 360-degree image data; acquiring metadata and information relating to an encoded picture from the 360-degree image data; decoding a picture including a circular image including a 360-degree image, on the basis of the information relating to the encoded picture; deriving the circular image from the picture on the basis of the metadata; and processing the circular image on the basis of the metadata and rendering the processed image, wherein the metadata includes camera lens information.

公开(公告)号：US20200374646A1

公开(公告)日：2020-11-26

申请号：US16636188

申请日：2017-11-14

Applicant: LG ELECTRONICS INC.

Inventor： Tung Chin LEE ,  Sejin OH

IPC: H04S7/00 ,  G10L19/008

Abstract: A three-dimensional audio playing method and playing apparatus are disclosed. The three-dimensional audio playing method according to the present invention comprises: a decoding step of decoding a received audio signal and outputting the decoded audio signal and metadata; a room impulse response (RIR) decoding step of decoding RIR data when the RIR data is included in the received audio signal; a head-related impulse response (HRIR) generation step of generating HRIR data by using user head information when the RIR data is included in the received audio signal; a binaural room impulse response (BRIR) synthesis step of generating BRIR data by synthesizing the decoded RIR data and modeled HRIR data; and a binaural rendering step of outputting a binaural rendered audio signal by applying the generated BRIR data to the decoded audio signal. In addition, the three-dimensional audio playing method and playing apparatus, according to the present invention, support a 3DoF environment and a 6DoF environment. Moreover, the three-dimensional audio playing method and playing apparatus according to the present invention provide parameterized BRIR or RIR data. The three-dimensional audio playing method according to an embodiment of the present invention enables a more stereophonic and realistic three-dimensional audio signal to be provided.

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：US20200296350A1

公开(公告)日：2020-09-17

申请号：US16764263

申请日：2019-06-11

Applicant: LG ELECTRONICS INC.

Inventor： Sejin OH

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

Abstract: In a 360-degree video data processing method performed by a 360-degree video receiving device according to one embodiment of the present invention, the method comprises the steps of: receiving information on 360-degree video data; obtaining information and metadata on an encoded picture from the information on the 360-degree video data; decoding the encoded picture on the basis of the information on the encoded picture; and rendering the decoded picture on the basis of the metadata, wherein the metadata includes group global coordinate system rotation structure information indicating information on a relative rotation angle between a common reference coordinate system and a global coordinate system of a viewpoint group included in the 360-degree video data.

公开(公告)号：US20200280712A1

公开(公告)日：2020-09-03

申请号：US16877248

申请日：2020-05-18

Applicant: LG ELECTRONICS INC.

Inventor： Jangwon LEE ,  Sejin OH ,  Jongyeul SUH

IPC: H04N13/194 ,  G06T9/00 ,  H04N13/178 ,  H04N13/106 ,  G06T3/00 ,  H04N21/236

Abstract: A method of transmitting omnidirectional video is provided according to one aspect of the present invention. The method of transmitting omnidirectional video according to an embodiment of the present invention includes: acquiring an image for the omnidirectional video; projecting the image for the omnidirectional video onto a 3D projection structure; packing the image projected on the 3D projection structure into a 2D frame; encoding the image packed into the 2D frame; and transmitting a data signal including the encoded image and metadata about the omnidirectional video.

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.