Patents by Inventor Hochan RYU

Hochan RYU 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).

  • VIDEO CODING METHOD AND APPARATUS
    Publication number: 20240048704
    Abstract: The present invention relates to a method and apparatus for performing encoding and decoding using a variably-sized quantization coefficient group, in quantization coefficient group encoding and decoding of video compression technology.
    Type: Application
    Filed: October 19, 2023
    Publication date: February 8, 2024
    Inventors: Yongjo Ahn, Donggyu Sim, Hochan Ryu, Seanae Park, Woong Lim
  • Video coding method and apparatus
    Patent number: 11838509
    Abstract: The present invention relates to a method and apparatus for performing encoding and decoding using a variably-sized quantization coefficient group, in quantization coefficient group encoding and decoding of video compression technology.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: December 5, 2023
    Assignees: DIGITALINSIGHTS INC., KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Yongjo Ahn, Donggyu Sim, Hochan Ryu, Seanae Park, Woong Lim
  • VIDEO CODING METHOD AND APPARATUS
    Publication number: 20220360780
    Abstract: The present invention relates to a method and apparatus for performing encoding and decoding using a variably-sized quantization coefficient group, in quantization coefficient group encoding and decoding of video compression technology.
    Type: Application
    Filed: July 25, 2022
    Publication date: November 10, 2022
    Inventors: Yongjo AHN, Donggyu SIM, Hochan RYU, Seanae PARK, Woong LIM
  • Video coding method and apparatus
    Patent number: 11438591
    Abstract: The present invention relates to a method and apparatus for performing encoding and decoding using a variably-sized quantization coefficient group, in quantization coefficient group encoding and decoding of video compression technology.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: September 6, 2022
    Assignees: DIGITALINSIGHTS INC., KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Yongjo Ahn, Donggyu Sim, Hochan Ryu, Seanae Park, Woong Lim
  • VIDEO CODING METHOD AND APPARATUS
    Publication number: 20200288133
    Abstract: The present invention relates to a method and apparatus for performing encoding and decoding using a variably-sized quantization coefficient group, in quantization coefficient group encoding and decoding of video compression technology.
    Type: Application
    Filed: May 22, 2020
    Publication date: September 10, 2020
    Inventors: Yongjo AHN, Donggyu SIM, Hochan RYU, Seanae PARK, Woong LIM
  • Video coding method and apparatus
    Patent number: 10694184
    Abstract: The present invention relates to a method and apparatus for performing encoding and decoding using a variably-sized quantization coefficient group, in quantization coefficient group encoding and decoding of video compression technology.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: June 23, 2020
    Assignee: DIGITALINSIGHTS INC.
    Inventors: Yongjo Ahn, Donggyu Sim, Hochan Ryu, Seanae Park, Woong Lim
  • VIDEO CODING METHOD AND APPARATUS UTILIZING ADAPTIVE INTERPOLATION FILTER
    Publication number: 20190253707
    Abstract: The present invention relates to an interpolation filter, and method and apparatus, from among video coding schemes, for encoding and decoding by selectively utilizing the interpolation filter. The method includes the steps of: acquiring spatially and temporally adjacent reference samples; determining whether to an adaptive apply interpolation filter acquired from a bitstream; and, if whether to apply the adaptive interpolation filter is indicated to be true, then carrying out interpolation of the reference samples by utilizing data for the acquired reference samples and interpolation filter.
    Type: Application
    Filed: October 20, 2016
    Publication date: August 15, 2019
    Inventors: Hochan RYU, Yongjo AHN
  • VIDEO CODING METHOD AND APPARATUS
    Publication number: 20190082179
    Abstract: The present invention relates to a method and apparatus for performing encoding and decoding using a variably-sized quantization coefficient group, in quantization coefficient group encoding and decoding of video compression technology.
    Type: Application
    Filed: March 9, 2017
    Publication date: March 14, 2019
    Inventors: Yongjo AHN, Donggyu SIM, Hochan RYU, Seanae PARK, Woong LIM