Patents by Inventor Seung Hwan Kim

Seung Hwan Kim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

IMAGE ENCODING/DECODING METHOD AND APPARATUS BASED ON PICTURE SPLIT INFORMATION AND SUBPICTURE INFORMATION, AND RECORDING MEDIUM STORING BITSTREAM

Publication number: 20230156210

Abstract: Provided is an image encoding/decoding method and apparatus. The image decoding method may include obtaining first information on whether a current picture might be partitioned, from a bitstream, obtaining, from the bitstream, second information on the number of one or more subpictures included in the current picture based on the first information, deriving one or more subpictures, based on the second information and decoding the one or more subpictures.

Type: Application

Filed: March 31, 2021

Publication date: May 18, 2023

Inventors: Hendry HENDRY, Seung Hwan KIM, Seethal PALURI
IMAGE ENCODING/DECODING METHOD AND DEVICE SIGNALING SPS, AND METHOD FOR TRANSMITTING BITSTREAM

Publication number: 20230156231

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method according to the present disclosure is performed by an image decoding apparatus. The image decoding method comprises determining whether a video parameter set (VPS) referenced by a sequence parameter set (SPS) is present, deriving information on inter layer prediction, based on the determination as to whether the video parameter set referenced by the sequence parameter set is present, and reconstructing an image based on the information on inter layer prediction.

Type: Application

Filed: April 5, 2021

Publication date: May 18, 2023

Inventors: Jung Hak NAM, Hendry HENDRY, Hyeong Moon JANG, Seung Hwan KIM
IMAGE ENCODING/DECODING METHOD AND DEVICE FOR PERFORMING PROF, AND METHOD FOR TRANSMITTING BITSTREAM

Publication number: 20230156196

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method according to the present disclosure is performed by an image decoding apparatus. The image decoding method may comprise deriving a prediction sample of a current block based on motion information of the current block, determining whether prediction refinement with optical flow (PROF) applies to the current block, deriving, based on that the PROF applies to the current block, a difference motion vector for each sample position in the current block, deriving a gradient for each sample position in the current block, deriving a PROF offset based on the difference motion vector and the gradient, and deriving a refined prediction sample for the current block based on the PROF offset.

Type: Application

Filed: January 17, 2023

Publication date: May 18, 2023

Inventors: Nae Ri PARK, Seung Hwan KIM, Jung Hak NAM, Hyeong Moon JANG
Image encoding/decoding method and apparatus using adaptive transform, and method for transmitting bitstream

Patent number: 11652999

Abstract: An image encoding/decoding method and apparatus are provided. The image decoding method performed by the image decoding apparatus, according to the present disclosure, comprises the steps of: determining a current block by splitting an image on the basis of split information acquired from a bitstream; determining a quantization parameter of the current block; and determining a transform coefficient of the current block on the basis of the quantization parameter.

Type: Grant

Filed: April 27, 2022

Date of Patent: May 16, 2023

Assignee: LG ELECTRONICS INC.

Inventors: Jie Zhao, Seung Hwan Kim, Hendry Hendry, Seethal Paluri
METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE, ON BASIS OF AVAILABLE SLICE TYPE INFORMATION FOR GDR OR IRAP PICTURE, AND RECORDING MEDIUM STORING BITSTREAM

Publication number: 20230143648

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method may comprise determining whether an inter slice type is allowed for a current picture including a current block, determining whether an intra slice type is allowed for the current picture, based on the inter slice type being allowed for the current picture, and decoding the current block based on a slice type allowed for the current picture. Whether the inter slice type is allowed for the current picture may be determined based on a picture type of the current picture and whether a current layer including the current picture is able to use inter-layer prediction.

Type: Application

Filed: April 5, 2021

Publication date: May 11, 2023

Inventors: Jung Hak NAM, Hendry HENDRY, Hyeong Moon JANG, Seung Hwan KIM
IMAGE ENCODING/DECODING METHOD AND DEVICE FOR SIGNALING FILTER INFORMATION ON BASIS OF CHROMA FORMAT, AND METHOD FOR TRANSMITTING BITSTREAM

Publication number: 20230145282

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus may include determining a chroma array type of a current image, determining an adaptive loop filter (ALF) indicator of a chroma component based on the chroma array type, and performing ALF filtering with respect to a reconstructed image based on a value of the ALF indicator. The value of the ALF indicator may be determined to be a predetermined value without being obtained from a bitstream, based on the chroma array type being a predetermined type, and the value of the ALF indicator may be obtained from the bitstream, based on the chroma array type being not the predetermined type.

Type: Application

Filed: January 3, 2023

Publication date: May 11, 2023

Inventors: Ling LI, Jung Hak NAM, Jaehyun LIM, Jin HEO, Seung Hwan KIM
IMAGE ENCODING/DECODING METHOD AND APPARATUS FOR SIGNALING INFORMATION ABOUT NUMBER OF DPB PARAMETERS, AND COMPUTER-READABLE RECORDING MEDIUM STORING BITSTREAM

Publication number: 20230144793

Abstract: Disclosed herein are an image encoding and decoding method and apparatus for signaling information on the number of DPB parameters, and a recording medium storing a bitstream. An image decoding method may comprise obtaining first information indicating the number of decoded picture buffer (DPB) parameter syntax structures in a video parameter set (VPS), computing the number of DPB parameter syntax structures in the VPS based on the first information, obtaining the DPB parameter syntax structures in the VPS based on the number of DPB parameter syntax structures, and managing a DPB based on the DPB parameter syntax structures.

Type: Application

Filed: March 29, 2021

Publication date: May 11, 2023

Inventors: Seethal PALURI, Hendry HENDRY, Seung Hwan KIM
GOLOMB-RICE/EG CODING TECHNIQUE FOR CABAC IN HEVC

Publication number: 20230137458

Abstract: A system utilizing a high throughput coding mode for CABAC in HEVC is described. The system may include an electronic device configured to obtain a block of data to be encoded using an arithmetic based encoder; to generate a sequence of syntax elements using the obtained block; to compare an Absolute-3 value of the sequence or a parameter associated with the Absolute-3 value to a preset value; and to convert the Absolute-3 value to a codeword using a first code or a second code that is different than the first code, according to a result of the comparison.

Type: Application

Filed: October 18, 2022

Publication date: May 4, 2023

Inventors: Seung-Hwan Kim, Louis J. Kerofsky, Christopher A. Segall
IMAGE ENCODING/DECODING METHOD AND DEVICE USING LOSSLESS COLOR TRANSFORM, AND METHOD FOR TRANSMITTING BITSTREAM

Publication number: 20230137603

Abstract: Provided are an image encoding/decoding method and device. The image decoding method performed by the image decoding device, according to the present disclosure, may comprise the steps of: determining a residual sample of a current block; and resetting the value of the residual sample on the basis of whether a color space transform is applied. The step for resetting the value of the residual block may be performed on the basis of a half value of a chroma residual sample value.

Type: Application

Filed: December 29, 2022

Publication date: May 4, 2023

Inventors: Jie ZHAO, Seung Hwan Kim, Mehdi Salehifar
Systems and methods for coding transform data

Patent number: 11638005

Abstract: A video coding device may be configured to perform transform data coding according to one or more of the techniques described herein.

Type: Grant

Filed: January 15, 2021

Date of Patent: April 25, 2023

Assignee: SHARP KABUSHIKI KAISHA

Inventors: Seung-Hwan Kim, Christopher Andrew Segall
IMAGE ENCODING/DECODING METHOD AND DEVICE FOR UTILIZING SIMPLIFIED MPM LIST GENERATION METHOD, AND METHOD FOR TRANSMITTING BITSTREAM

Publication number: 20230119780

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus may include identifying a prediction mode of a current block, determining a candidate intra prediction mode for the current block, based on a prediction mode of a neighboring block located around the current block, based on the intra prediction mode of the current block being an intra prediction mode, generating a candidate intra prediction mode list of the current block based on the candidate intra prediction mode, and determine an intra prediction mode of the current block based on the candidate intra prediction mode list. In this case, the candidate intra prediction mode may be determined to be a predetermined intra prediction mode, based on the prediction mode of the neighboring block being an MIP mode.

Type: Application

Filed: November 15, 2022

Publication date: April 20, 2023

Inventors: Jangwon CHOI, Jin HEO, Sunmi YOO, Jungah CHOI, Seung Hwan KIM
SIGNAL COMBINING AND DISTRIBUTION NETWORK APPARATUS INCLUDING MULTI-ARRAY CIRCUITS

Publication number: 20230116500

Abstract: Disclosed is a signal combining and distribution network apparatus including multi-array circuits. The signal combining and distribution network apparatus includes multi-array circuits each including a plurality of oscillators, and 2-terminal networks a arranged between the oscillators and including a slow wave structure or a coupled line filter, and 2-terminal networks c arranged between the multi-array circuits and including a slow wave structure or a coupled line filter.

Type: Application

Filed: December 10, 2021

Publication date: April 13, 2023

Inventors: Sooyeon KIM, Seung Hwan KIM, Seung-Hyun CHO
COATING MATERIAL OF KILN FOR PRODUCTION OF ACTIVE MATERIAL AND KILN COMPRISING SAME

Publication number: 20230110681

Abstract: Disclosed is a coating material for coating a surface of a kiln for preparing an active material, the coating material being represented by the following Formula 1: NiaXz??(1) wherein an equation of a+z=1 is satisfied, with the proviso that 0.2?a<1.0 and 0<z?0.8 are satisfied, and X is at least one element selected from the group consisting of W, Cr, Co, Fe, Cu, Na, Al, Mg, Si, Zn, K, Ti, Mo, N, B, P, C, Ta, Nb, O, Mn, Sn, Ag and Zr, or an alloy or compound of two or more elements selected therefrom.

Type: Application

Filed: March 11, 2021

Publication date: April 13, 2023

Inventors: Jun Ho SHIN, Sung Kyun CHANG, Seung Hwan KIM, Jong Wan KIM, Ji Woo OH, Doe Hyoung KIM
SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME

Publication number: 20230115443

Abstract: A method for fabricating a semiconductor device includes: forming an etch stopper pad including a sacrificial plug over a substrate and a sacrificial pad over the sacrificial plug; forming an etch target layer over the etch stopper pad; forming a plurality of openings by etching the etch target layer and stopping the etching at the sacrificial pad; forming an air gap by removing the sacrificial pad and the sacrificial plug through the openings; and forming a gap-fill layer that fills the openings and the air gap.

Type: Application

Filed: April 1, 2022

Publication date: April 13, 2023

Inventors: Seung Hwan KIM, Kyung Hoon MIN, Ilsup JIN
IMAGE ENCODING/DECODING METHOD AND DEVICE USING ADAPTIVE SIZE LIMITING OF CHROMA BLOCK AND BITSTREAM TRANSMISSION METHOD

Publication number: 20230089398

Abstract: An image encoding decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus includes determining a splitting structure of a current block composed of chroma components, determining a splitting type of the current block based on the splitting structure, obtaining a plurality of lower-layer blocks by splitting the current block based on the splitting type, and decoding the lower-layer blocks based on a prediction mode of the lower-layer blocks.

Type: Application

Filed: October 31, 2022

Publication date: March 23, 2023

Inventors: Jangwon Choi, Jin Heo, Sunmi Yoo, Jungah Choi, Seung Hwan Kim
Semiconductor package and a method of fabricating the same

Patent number: 11610845

Abstract: A semiconductor package including: a first package; a second package on the first package, the second package including a second package substrate, first and second semiconductor chips on the second package substrate, and a second molding part on the second package substrate and covering the first and second semiconductor chips; and a fill part between the first package and the second package, a first through hole that penetrates the second package substrate, the first through hole being between the first and second semiconductor chips, a second through hole that penetrates the second molding part, the second through hole being connected to the first through hole, and wherein the fill part has an extension disposed in the first through hole and the second through hole.

Type: Grant

Filed: August 3, 2021

Date of Patent: March 21, 2023

Assignee: SAMSUNG ELECTRONICS CO., LTD.

Inventors: Jongho Park, Seung Hwan Kim, Jun Young Oh, Kyong Hwan Koh, Sangsoo Kim, Dong-Ju Jang
Method and device for encoding/decoding image using color space conversion, and method for transmitting bitstream

Patent number: 11606558

Abstract: Provided are an image encoding/decoding method and device. An image decoding method performed by an image decoding device according to the present disclosure includes the steps of: determining a quantization parameter of the current block on the basis of whether color space conversion is applied to a residual sample of the current block; determining a transform coefficient of the current block on the basis of the quantization parameter; determining the residual sample of the current block by using the transform coefficient; and resetting the value of the residual sample on the basis of whether the color space conversion is applied.

Type: Grant

Filed: April 27, 2022

Date of Patent: March 14, 2023

Assignee: LG ELECTRONICS INC.

Inventors: Jie Zhao, Seung Hwan Kim, Hendry Hendry, Seethal Paluri
VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR SIGNALING DPB PARAMETER, AND COMPUTER-READABLE RECORDING MEDIUM STORING BITSTREAM

Publication number: 20230069585

Abstract: An image encoding/decoding method and apparatus for signaling a VPS and a recording medium storing a bitstream are provided. An image decoding method may comprise obtaining first information indicating whether each output layer set (OLS) specified by a video parameter set (VPS) includes only one layer, obtaining second information indicating the number of decoded picture buffer (DPB) parameter syntax structures in the VPS, based on the first information, obtaining the DPB parameter syntax structures in the VPS based on the second information, and managing a DPB based on the DPB parameter syntax structures.

Type: Application

Filed: September 28, 2022

Publication date: March 2, 2023

Inventors: Seethal PALURI, Hendry HENDRY, Seung Hwan Kim
IMAGE ENCODING/DECODING METHOD AND APPARATUS FOR SIGNALING PTL-RELATED INFORMATION, AND COMPUTER-READABLE RECORDING MEDIUM IN WHICH BITSTREAM IS STORED

Publication number: 20230062754

Abstract: An image encoding/decoding method and apparatus for signaling PTL related information through a VPS and a recording medium storing a bitstream are provided. An image decoding method may comprise obtaining first information indicating the number of profile_tier_level (PTL) syntax structures in a video parameter set (VPS), obtaining PTL syntax structures in the VPS based on the first information, determining whether a total number of output layer sets (OLSs) specified by the VPS is equal to the number of PTL syntax structures in the VPS, and deriving mapping information between the OLSs and the PTL syntax structures respectively applied to the OLSs based on the determination.

Type: Application

Filed: September 27, 2022

Publication date: March 2, 2023

Inventors: Seethal PALURI, Hendry HENDRY, Seung Hwan KIM
Image encoding/decoding method and device for performing PROF, and method for transmitting bitstream

Patent number: 11589053

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method according to the present disclosure is performed by an image decoding apparatus. The image decoding method may comprise deriving a prediction sample of a current block based on motion information of the current block, determining whether prediction refinement with optical flow (PROF) applies to the current block, deriving, based on that the PROF applies to the current block, a difference motion vector for each sample position in the current block, deriving a gradient for each sample position in the current block, deriving a PROF offset based on the difference motion vector and the gradient, and deriving a refined prediction sample for the current block based on the PROF offset.

Type: Grant

Filed: February 28, 2022

Date of Patent: February 21, 2023

Assignee: LG ELECTRONICS INC.

Inventors: Nae Ri Park, Seung Hwan Kim, Jung Hak Nam, Hyeong Moon Jang

prev … 5 6 7 8 9 10 11 12 13 … next