Patents by Inventor Se-In Chang

Se-In Chang 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).

  • Patent number: 12003707
    Abstract: Disclosed herein is an intra prediction method including: deriving neighbor prediction mode information from a left neighbor prediction mode and an upper neighbor prediction mode; deriving an intra prediction mode for a decoding target unit by using the derived neighbor prediction mode information; and performing intra prediction on the decoding target unit based on the intra prediction mode. According to exemplary embodiments of the present invention, image encoding/decoding efficiency can be improved.
    Type: Grant
    Filed: October 13, 2022
    Date of Patent: June 4, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Ha Hyun Lee, Hui Yong Kim, Sung Chang Lim, Jong Ho Kim, Jin Ho Lee, Se Yoon Jeong, Suk Hee Cho, Jin Soo Choi, Jin Woong Kim, Chie Teuk Ahn
  • Patent number: 12003753
    Abstract: The present invention relates to image processing, and more particularly, to a video coding/decoding method using a clipped motion vector and an apparatus thereof. An embodiment of the present invention relates to a method of decoding an image. The method includes clipping a motion vector of a reference picture in a predetermined dynamic range to generate a clipped motion vector, storing the clipped motion vector in a buffer, deriving a motion vector of a coding treeblock using the motion vector stored in the buffer, and performing inter prediction decoding process using the motion vector of the coding treeblock. According to the exemplary embodiment of the present invention, a size of a memory required for storing motion vectors may be reduced.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: June 4, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung Chang Lim, Hui Yong Kim, Se Yoon Jeong, Suk Hee Cho, Dong San Jun, Jong Ho Kim, Ha Hyun Lee, Jin Ho Lee, Jin Soo Choi, Jin Woong Kim
  • Patent number: 12001141
    Abstract: The present disclosure relates to a photopolymer composition, and more particularly, to a compound having a novel structure, a photopolymer composition including the compound as a dye, a hologram recording medium produced from the photopolymer composition, an optical element including the hologram recording medium, and a holographic recording method using the photopolymer composition.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: June 4, 2024
    Assignees: LG CHEM LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Heon Kim, Yoosik Kim, Raisa Kharbash, Se Hyun Kwon, Yeongrae Chang, Seokhoon Jang
  • Patent number: 11994704
    Abstract: The present disclosure relates to a hologram recording medium having one surface with a higher surface energy than a polymer resin layer containing at least one polymer selected from the group consisting of triacetyl cellulose, alicyclic olefin polymer and polyethylene terephthalate, a hologram recording medium wherein the surface energy of any one surface is 50 mN/m or more, and an optical element comprising the hologram medium.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: May 28, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Seokhoon Jang, Jinseok Byun, Heon Kim, Se Hyun Kwon, Yeongrae Chang
  • Patent number: 11979573
    Abstract: Disclosed are a method for determining a color difference component quantization parameter and a device using the method. Method for decoding an image can comprise the steps of: decoding a color difference component quantization parameter offset on the basis of size information of a transform unit; and calculating a color difference component quantization parameter index on the basis of the decoded color difference component quantization parameter offset. Therefore, the present invention enables effective quantization by applying different color difference component quantization parameters according to the size of the transform unit when executing the quantization.
    Type: Grant
    Filed: August 1, 2022
    Date of Patent: May 7, 2024
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Sung Chang Lim, Hui Yong Kim, Se Yoon Jeong, Jong Ho Kim, Ha Hyun Lee, Jin Ho Lee, Jin Soo Choi, Jin Woong Kim
  • Publication number: 20240114414
    Abstract: Provided are a method and apparatus for providing a network switching service to a user equipment.
    Type: Application
    Filed: October 4, 2023
    Publication date: April 4, 2024
    Applicant: KT CORPORATION
    Inventors: Ji-Young JUNG, Kun-Woo PARK, Se-Hoon KIM, Il-Yong KIM, Sang-Hyun PARK, Ho-Jun JANG, Won-Chang CHO
  • Publication number: 20240106794
    Abstract: Provided are a method and apparatus for a user equipment, a core network, and a second device to enable bidirectional communication for second devices. The method of the second device may include receiving internet protocol (IP) configuration information for automatically configuring an IP version 6 (IPv6) address of the second device from a core network through a user equipment; generating the IPv6 address using information in the IP configuration information; and transmitting the generated IPv6 address to the core network through the UE.
    Type: Application
    Filed: September 6, 2023
    Publication date: March 28, 2024
    Applicant: KT CORPORATION
    Inventors: Won-Chang CHO, Se-Hoon KIM, Il-Yong KIM, Kun-Woo PARK, Sang-Hyun PARK, Ho-Jun JANG, Ji-Young JUNG
  • Publication number: 20240107002
    Abstract: A method for coding image information includes generating prediction information by predicting information on a current coding unit, and determining whether the information on the current coding unit is the same as the prediction information. When the information on the current coding unit is the same as the prediction information, a flag indicating that the information on the current coding unit is the same as the prediction information is coded and transmitted. When the information on the current coding unit is not the same as the prediction information, a flag indicating that the information on the current coding unit is not the same as the prediction information and the information on the current coding unit are coded and transmitted.
    Type: Application
    Filed: December 6, 2023
    Publication date: March 28, 2024
    Applicants: Electronics and Telecommunications Research Institute, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Se Yoon JEONG, Hui Yong KIM, Sung Chang LIM, Jin Ho LEE, Ha Hyun LEE, Jong Ho KIM, Jin Soo CHOI, Jin Woong KIM, Chie Teuk AHN, Gwang Hoon PARK, Kyung Yong KIM, Tae Ryong KIM, Han Soo LEE
  • Publication number: 20240107032
    Abstract: The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.
    Type: Application
    Filed: December 7, 2023
    Publication date: March 28, 2024
    Applicants: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Hae Chul CHOI, Se Yoon JEONG, Sung-Chang LIM, Jin Soo CHOI, Jin Woo HONG, Dong Gyu SIM, Seoung-Jun OH, Chang-Beom AHN, Gwang Hoon PARK, Seung Ryong KOOK, Sea-Nae PARK, Kwang-Su JEONG
  • Publication number: 20240098022
    Abstract: Provided are a method and apparatus for providing a multi virtual local area network service to user equipments.
    Type: Application
    Filed: September 19, 2023
    Publication date: March 21, 2024
    Applicant: KT CORPORATION
    Inventors: Ho-Jun JANG, Se-Hoon KIM, Won-Chang CHO, Sang-Hyun PARK, Kun-Woo PARK, Ji-Young JUNG
  • Publication number: 20240073416
    Abstract: The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.
    Type: Application
    Filed: November 6, 2023
    Publication date: February 29, 2024
    Applicants: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, Universily-lndustry Cooperation Group of Kyung Hee University
    Inventors: Sung Chang LIM, Ha Hyun LEE, Se Yoon JEONG, Hui Yong KIM, Suk Hee CHO, Jong Ho KIM, Jin Ho LEE, Jin Soo CHOI, Jin Woong KIM, Chie Teuk AHN, Dong Gyu SIM, Seoung Jun OH, Gwang Hoon PARK, Sea Nae PARK, Chan Woong JEON
  • Patent number: 11872283
    Abstract: The present invention relates to a conjugate comprising oxyntomodulin, an immunoglobulin Fc region, and non-peptidyl polymer wherein the conjugate being obtainable by covalently linking oxyntomodulin to immunoglobulin Fc region via non-peptidyl polymer, and a pharmaceutical composition for the prevention or treatment of obesity comprising the conjugates. The conjugate comprising oxyntomodulin and the immunoglobulin Fc of the present invention reduces food intake, suppresses gastric emptying, and facilitates lipolysis without side-effects, unlike native oxyntomodulin, and also shows excellent receptor-activating effects and long-term sustainability, compared to native oxyntomodulin. Thus, it can be widely used in the treatment of obesity with safety and efficacy.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: January 16, 2024
    Assignee: Hanmi Science Co., Ltd
    Inventors: Sung Youb Jung, Dae Jin Kim, Sung Hee Park, Young Eun Woo, In Young Choi, Se Chang Kwon
  • Patent number: 11752216
    Abstract: The present invention relates to an insulin analog conjugate and use thereof.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: September 12, 2023
    Assignee: HANMI PHARM. CO., LTD.
    Inventors: Young Jin Park, In Young Choi, Sung Youb Jung, Se Chang Kwon
  • Publication number: 20230220034
    Abstract: A method for improving the solubility of a physiologically active protein or peptide compared to that of a physiologically active protein or peptide which is not conjugated to an immunoglobulin Fc fragment is disclosed. The method includes steps of conjugating the physiologically active protein or peptide to an immunoglobulin Fc fragment. Also disclosed is a composition for improving the solubility of a physiologically active protein or peptide, which contains an immunoglobulin Fc fragment. The composition improves the solubility compared to a composition without an immunoglobulin Fc fragment.
    Type: Application
    Filed: June 13, 2022
    Publication date: July 13, 2023
    Applicant: HANMI PHARM. CO., LTD
    Inventors: Hyung Kyu LIM, Jong Soo LEE, Dae Jin KIM, Sung Min BAE, Sung Youb JUNG, Se Chang KWON
  • Publication number: 20230212103
    Abstract: Polyethylene glycol derivatives of the following formula I and uses thereof are disclosed. A method for manufacturing the polyethylene glycol derivatives is also disclosed.
    Type: Application
    Filed: December 20, 2022
    Publication date: July 6, 2023
    Applicant: HANMI PHARM. CO., LTD.
    Inventors: Dae Jin KIM, Jong Soo LEE, SungMin BAE, Se Chang KWON
  • Patent number: 11603346
    Abstract: The present invention relates to polyethylene glycol derivatives and use thereof.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: March 14, 2023
    Assignee: HANMI PHARM. CO., LTD.
    Inventors: Dae Jin Kim, Jong Soo Lee, Sung Min Bae, Se Chang Kwon
  • Publication number: 20220380437
    Abstract: A physiologically active polypeptide-immunoglobulin Fc fragment conjugate and a method for making the conjugate are disclosed. The conjugate contains a physiologically active polypeptide linked via a non-peptidyl linker to an immunoglobulin Fc fragment having an FcRn-binding region and maintains the intrinsic binding affinity of the immunoglobulin Fc fragment. A method of maintaining the intrinsic binding affinity of the conjugate for FcRn, and a composition containing the conjugate, which maintains the intrinsic binding affinity of the immunoglobulin Fc fragment for FcRn are also disclosed.
    Type: Application
    Filed: August 3, 2022
    Publication date: December 1, 2022
    Applicant: HANMI PHARM. CO., LTD.
    Inventors: Sang Youn HWANG, Jong Soo Lee, Sung Hee Hong, In Young Choi, Sung Youb Jung, Se Chang Kwon
  • Patent number: 11494116
    Abstract: There are provided a memory controller and a memory system having the same. The memory controller includes: a central processing unit configured to output a read command for checking an erase state of a selected storage region in response to a program request from a host, determine the number of dummy pages according to the erase state, and output a program command according to the number of dummy pages; and a memory interface configured to, when user data corresponding to the program request is output to the selected storage region, selectively generate dummy data corresponding to the number of dummy pages, and output the dummy data with the user data.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: November 8, 2022
    Assignee: SK hynix Inc.
    Inventor: Se Chang Park
  • Patent number: 11434271
    Abstract: A method for preparing a conjugate of a physiologically active polypeptide and a non-peptide polymer by linking physiologically active polypeptide with non-peptide polymer through a covalent bond using an organic solvent is provided. A method for preparing a physiologically active polypeptide complex by linking the conjugate with a carrier is provided. The complex shows improved in vivo duration and stability of the physiologically active polypeptide. The method can prepare the conjugate at a lower production cost, and the resulting conjugate shows an extension of in vivo activity at a relatively high level and significantly increase in the blood half-life.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: September 6, 2022
    Assignee: HANMI SCIENCE CO., LTD.
    Inventors: Dae Jin Kim, Myung Hyun Jang, Seung Su Kim, Jong Soo Lee, Jae Hyuk Choi, Se Chang Kwon
  • Publication number: 20220249615
    Abstract: Provided is a complex composition, of which positional isomers are minimized by using a N-terminus of an immunoglobulin Fc region as a binding site when the immunoglobulin Fc region is used as a carrier. Also provided are a protein complex which is prepared by N-terminal-specific binding of immunoglobulin Fc region, thereby prolonging blood half-life of the physiologically active polypeptide, maintaining in vivo potency at a high level, and having no risk of immune responses, a preparation method thereof, and a pharmaceutical composition including the same for improving in vivo duration and stability of the physiologically active polypeptide. The protein complex may be usefully applied to the development of long-acting formulations of various physiologically active polypeptide drugs.
    Type: Application
    Filed: April 27, 2022
    Publication date: August 11, 2022
    Applicant: HANMI PHARM. CO., LTD
    Inventors: Dae Jin KIM, Jong Soo LEE, Young Jin PARK, Sung Hee HONG, Sung Min BAE, Se Chang KWON