Patents by Inventor Woo-jin Han

Woo-jin Han 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).

  • Publication number: 20220001360
    Abstract: The present invention can facilitate the reduction of nickel by using copper as an accelerator when a hydrogenation catalyst including nickel is produced by using a deposition-precipitation (DP) method. According to an embodiment of the present invention, provided is a catalyst for a hydrogenation reaction that includes 40-80 parts by weight of nickel as a catalyst active component, 0.01-5 parts by weight of copper as an accelerator, and 10-30 parts by weight of a silica support based on 100 parts by weight of the entire catalyst. Therefore, although a high content of nickel is supported, the catalyst has a small crystal size of an activated metal and a high degree of dispersion and provides excellent hydrogenation activity.
    Type: Application
    Filed: October 29, 2019
    Publication date: January 6, 2022
    Inventors: Bong Sik JEON, Yong Hee LEE, Woo Jin PARk, Eui Geun JUNG, Wan Jae MYEONG, Joung Woo HAN
  • Publication number: 20200359010
    Abstract: A video encoding method and apparatus and a video decoding method and apparatus are provided. The video encoding method includes: prediction encoding in units of a coding unit as a data unit for encoding a picture, by using partitions determined based on a first partition mode and a partition level, so as to select a partition for outputting an encoding result from among the determined partitions; and encoding and outputting partition information representing a first partition mode and a partition level of the selected partition. The first partition mode represents a shape and directionality of a partition as a data unit for performing the prediction encoding on the coding unit, and the partition level represents a degree to which the coding unit is split into partitions for detailed motion prediction.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 12, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-Hyun LEE, Tammy Lee, Jianle Chen, Dae-sung Cho, Woo-jin Han, Il-koo Kim
  • Patent number: 10771779
    Abstract: A video encoding method and apparatus and a video decoding method and apparatus are provided. The video encoding method includes: prediction encoding in units of a coding unit as a data unit for encoding a picture, by using partitions determined based on a first partition mode and a partition level, so as to select a partition for outputting an encoding result from among the determined partitions; and encoding and outputting partition information representing a first partition mode and a partition level of the selected partition. The first partition mode represents a shape and directionality of a partition as a data unit for performing the prediction encoding on the coding unit, and the partition level represents a degree to which the coding unit is split into partitions for detailed motion prediction.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: September 8, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-Hyun Lee, Tammy Lee, Jianle Chen, Dae-sung Cho, Woo-jin Han, Il-koo Kim
  • Patent number: 10743026
    Abstract: A video encoding method, a video encoding apparatus, a video decoding method, and a video decoding apparatus are provided. The video encoding method includes producing a fast transform matrix based on a transform matrix which is used for frequency transformation on a block which has a predetermined size; producing a transformed block by transforming the block having the predetermined size by using the fast transform matrix; and performing scaling with respect to the transformed block in order to correct a difference between the transform matrix used for the frequency transformation and the fast transform matrix.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: August 11, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoon-mi Hong, Woo-jin Han, Min-su Cheon, Jianle Chen
  • Patent number: 10708616
    Abstract: A method and apparatus for encoding and decoding a motion vector of a current block. The method of encoding including: generating information about the motion vector based on a motion vector of a current block and a motion vector predictor of the current block by estimating the motion vector and determining a first motion vector predictor candidate from among a plurality of motion vector predictor candidates as the motion vector predictor based on a result of the estimating; and generating a virtual motion vector by using a second motion vector predictor candidate and the information about the motion vector, generating vector differences between the virtual motion vector and the plurality of motion vector predictor candidates, comparing the vector differences with the information about the motion vector, and selectively excluding the second motion vector predictor candidate according to the comparing.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: July 7, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tammy Lee, Woo-jin Han
  • Publication number: 20200045335
    Abstract: A method and apparatus for encoding and decoding a motion vector of a current block. The method of encoding including: generating information about the motion vector based on a motion vector of a current block and a motion vector predictor of the current block by estimating the motion vector and determining a first motion vector predictor candidate from among a plurality of motion vector predictor candidates as the motion vector predictor based on a result of the estimating; and generating a virtual motion vector by using a second motion vector predictor candidate and the information about the motion vector, generating vector differences between the virtual motion vector and the plurality of motion vector predictor candidates, comparing the vector differences with the information about the motion vector, and selectively excluding the second motion vector predictor candidate according to the comparing.
    Type: Application
    Filed: October 10, 2019
    Publication date: February 6, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tammy LEE, Woo-jin HAN
  • Publication number: 20190394490
    Abstract: A video encoding method, a video encoding apparatus, a video decoding method, and a video decoding apparatus are provided. The video encoding method includes producing a fast transform matrix based on a transform matrix which is used for frequency transformation on a block which has a predetermined size; producing a transformed block by transforming the block having the predetermined size by using the fast transform matrix; and performing scaling with respect to the transformed block in order to correct a difference between the transform matrix used for the frequency transformation and the fast transform matrix.
    Type: Application
    Filed: September 5, 2019
    Publication date: December 26, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoon-mi HONG, Woo-jin HAN, Min-su CHEON, Jianle CHEN
  • Publication number: 20190364269
    Abstract: A video encoding method and apparatus and a video decoding method and apparatus are provided. The video encoding method includes: prediction encoding in units of a coding unit as a data unit for encoding a picture, by using partitions determined based on a first partition mode and a partition level, so as to select a partition for outputting an encoding result from among the determined partitions; and encoding and outputting partition information representing a first partition mode and a partition level of the selected partition. The first partition mode represents a shape and directionality of a partition as a data unit for performing the prediction encoding on the coding unit, and the partition level represents a degree to which the coding unit is split into partitions for detailed motion prediction.
    Type: Application
    Filed: August 12, 2019
    Publication date: November 28, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-Hyun LEE, Tammy LEE, Jianle CHEN, Dae-sung CHO, Woo-jin HAN, Il-koo KIM
  • Patent number: 10484709
    Abstract: A method and apparatus for encoding and decoding a motion vector of a current block. The method of encoding including: generating information about the motion vector based on a motion vector of a current block and a motion vector predictor of the current block by estimating the motion vector and determining a first motion vector predictor candidate from among a plurality of motion vector predictor candidates as the motion vector predictor based on a result of the estimating; and generating a virtual motion vector by using a second motion vector predictor candidate and the information about the motion vector, generating vector differences between the virtual motion vector and the plurality of motion vector predictor candidates, comparing the vector differences with the information about the motion vector, and selectively excluding the second motion vector predictor candidate according to the comparing.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: November 19, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tammy Lee, Woo-jin Han
  • Patent number: 10455252
    Abstract: A video encoding method, a video encoding apparatus, a video decoding method, and a video decoding apparatus are provided. The video encoding method includes producing a fast transform matrix based on a transform matrix which is used for frequency transformation on a block which has a predetermined size; producing a transformed block by transforming the block having the predetermined size by using the fast transform matrix; and performing scaling with respect to the transformed block in order to correct a difference between the transform matrix used for the frequency transformation and the fast transform matrix.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: October 22, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoon-Mi Hong, Woo-Jin Han, Min-Su Cheon, Jianle Chen
  • Patent number: 10448042
    Abstract: An apparatus for decoding a video by parsing asymmetric partition information indicating whether partition types include asymmetric partition types, from a bitstream of an encoded image, determining at least one coding unit included in a maximum coding unit by using split information parsed from the received bitstream, determining at least one prediction unit of a coding unit among the at least one coding unit, by using the asymmetric partition information and information about a partition type of the coding unit parsed from the received bitstream, and performing motion compensation using the prediction units for the coding unit.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: October 15, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sun-il Lee, Min-su Cheon, Woo-jin Han
  • Patent number: 10432948
    Abstract: A method for decoding an image including performing intra prediction on a chrominance block according to whether the intra prediction mode of the chrominance block is equal to an intra prediction mode of a luminance block.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: October 1, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hye Min, Elena Alshina, Woo-jin Han
  • Patent number: 10432965
    Abstract: Provided are a method and apparatus for encoding a video and a method and apparatus for decoding a video. The encoding method includes: splitting a picture of the video into one or more maximum coding units that are coding units having a maximum size; encoding the picture based on coding units according to depths which are obtained by hierarchically splitting each of the one or more maximum coding units according to depths in each of the one or more maximum coding units, determining coding units according to coded depths with respect to each of the coding units according to depths, and thus determining coding units having a tree structure; and outputting data that is encoded based on the coding units having the tree structure, information about the coded depths and an encoding mode, and coding unit structure information indicating a size and a variable depth of a coding unit.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: October 1, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-Hye Min, Woo-Jin Han
  • Patent number: 10419751
    Abstract: A video encoding method and apparatus and a video decoding method and apparatus are provided. The video encoding method includes: prediction encoding in units of a coding unit as a data unit for encoding a picture, by using partitions determined based on a first partition mode and a partition level, so as to select a partition for outputting an encoding result from among the determined partitions; and encoding and outputting partition information representing a first partition mode and a partition level of the selected partition. The first partition mode represents a shape and directionality of a partition as a data unit for performing the prediction encoding on the coding unit, and the partition level represents a degree to which the coding unit is split into partitions for detailed motion prediction.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: September 17, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-Hyun Lee, Tammy Lee, Jianle Chen, Dae-sung Cho, Woo-jin Han, Il-koo Kim
  • Patent number: 10412411
    Abstract: Provided are a method and apparatus for encoding a video and a method and apparatus for decoding a video. The encoding method includes: splitting a picture of the video into one or more maximum coding units; encoding the picture based on coding units according to depths which are obtained based on a partition type determined according to the depths of the coding units according to depths, determining coding units according to coded depths with respect to each of the coding units according to depths, and thus determining coding units having a tree structure; and outputting data that is encoded based on the partition type and the coding units having the tree structure, information about the coded depths and an encoding mode, and coding unit structure information indicating a size and a variable depth of a coding unit.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: September 10, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hye Min, Woo-jin Han, Il-koo Kim
  • Patent number: 10306262
    Abstract: A method of encoding a video is provided, the method includes: determining a filtering boundary on which deblocking filtering is to be performed based on at least one data unit from among a plurality of coding units that are hierarchically configured according to depths indicating a number of times at least one maximum coding unit is spatially spilt, and a plurality of prediction units and a plurality of transformation units respectively for prediction and transformation of the plurality of coding units, determining filtering strength at the filtering boundary based on a prediction mode of a coding unit to which pixels adjacent to the filtering belong from among the plurality of coding units, and transformation coefficient values of the pixels adjacent to the filtering boundary, and performing deblocking filtering on the filtering boundary based on the determined filtering strength.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: May 28, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo-jin Han, Elena Alshina, Jung-hye Min, Alexander Alshin, Il-koo Kim, Nikolay Shlyakhov, Tammy Lee, Sun-il Lee, Min-su Cheon, Jianle Chen, Vadim Seregin, Yoon-mi Hong
  • Publication number: 20190132587
    Abstract: A video encoding method and apparatus and a video decoding method and apparatus are provided. The video encoding method includes: prediction encoding in units of a coding unit as a data unit for encoding a picture, by using partitions determined based on a first partition mode and a partition level, so as to select a partition for outputting an encoding result from among the determined partitions; and encoding and outputting partition information representing a first partition mode and a partition level of the selected partition. The first partition mode represents a shape and directionality of a partition as a data unit for performing the prediction encoding on the coding unit, and the partition level represents a degree to which the coding unit is split into partitions for detailed motion prediction.
    Type: Application
    Filed: December 26, 2018
    Publication date: May 2, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-Hyun LEE, Tammy LEE, Jianle CHEN, Dae-sung CHO, Woo-jin HAN, Il-koo KIM
  • Patent number: 10257530
    Abstract: A decoding apparatus for decoding an image by obtaining transformation coefficients of a sub residual block based on location information of at least one non-zero transformation coefficient and level information of the at least one non-zero transformation coefficient obtained from a bitstream.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: April 9, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-su Cheon, Jung-hye Min, Woo-jin Han
  • Patent number: 10225551
    Abstract: A method of decoding an image in which wherein, when a prediction mode is an inter prediction mode, not an intra prediction mode, a size of at least one prediction unit in the coding unit is determined independently from a size of at least one transformation unit in the coding unit.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: March 5, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-su Cheon, Woo-jin Han, Hae-kyung Jung, Il-koo Kim, Tammy Lee, Jianle Chen
  • Patent number: D852346
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: June 25, 2019
    Inventors: Woo In Park, Sang Jun Han, Woo Jin Han