Patents by Inventor Chang Ko

Chang Ko 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: 11943436
    Abstract: The present it relates to a video encoding/decoding method and apparatus. The video decoding method according to the present invention may comprise c coding filter information on a coding unit; classifying samples in the coding unit into classes on a per block classification unit basis; and filtering the coding unit having the samples classified into the classes on a per block classification unit basis by using the filter information.
    Type: Grant
    Filed: February 21, 2022
    Date of Patent: March 26, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung Chang Lim, Jung Won Kang, Ha Hyun Lee, Dong San Jun, Hyun Suk Ko, Jin Ho Lee, Hui Yong Kim
  • Publication number: 20240098311
    Abstract: The present invention relates to an image encoding/decoding method and apparatus. An image encoding method according to the present invention may comprise generating a transform block by performing at least one of transform and quantization; grouping at least one coefficient included in the transform block into at least one coefficient group (CG); scanning at least one coefficient included in the coefficient group; and encoding the at least one coefficient.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 21, 2024
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Sung Chang LIM, Jung Won KANG, Hyun Suk KO, Jin Ho LEE, Dong San JUN, Ha Hyun LEE, Seung Hyun CHO, Hui Yong KIM, Jin Soo CHOI, Yung Lyul LEE, Jun Woo CHOI
  • Publication number: 20240097770
    Abstract: An operation method of a first access point (AP) may comprise: transmitting, to a control device of a base station, channel information between the first AP and one or more user equipments (UEs) connected to the base station; receiving allocation information determined by the control device; identifying an entity to decode a uplink (UL) signal of each of the one or more UEs from among a plurality of APs and the control device constituting the base station, based on the allocation information; directly performing a decoding operation on a first UL signal received from a first UE among the one or more UEs, based on the allocation information; and transmitting, to the control device, a first report related to a result of the decoding operation on the first UL signal.
    Type: Application
    Filed: December 29, 2022
    Publication date: March 21, 2024
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jung Ho MYUNG, Young-Jo KO, Keun Young KIM, Kapseok CHANG
  • Patent number: 11936853
    Abstract: The present invention relates to an image encoding method and an image decoding method. The image decoding method includes partitioning a picture into a plurality of coding units, constructing a coding unit group including at least one coding unit of the plurality of coding units, obtaining coding information in units of one coding unit group, and decoding at least one coding unit of the plurality of coding units included in the coding unit group by using the obtained coding information.
    Type: Grant
    Filed: January 9, 2023
    Date of Patent: March 19, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Won Kang, Sung Chang Lim, Hyun Suk Ko, Ha Hyun Lee, Jin Ho Lee, Dong San Jun, Seung Hyun Cho, Hui Yong Kim, Jin Soo Choi
  • Publication number: 20240080455
    Abstract: An image encoding/decoding method and apparatus for performing intra prediction mode based intra prediction are provided. An image decoding method may comprise decoding an intra prediction mode of a current block, deriving at least one intra prediction mode from the decoded intra prediction mode of the current block, generating two or more intra prediction blocks using the intra prediction mode of the current block and the derived intra prediction mode, and generating an intra prediction block of the current block based on the two or more intra prediction blocks.
    Type: Application
    Filed: November 14, 2023
    Publication date: March 7, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventors: Sung Chang LIM, Hyun Suk KO, Jung Won KANG, Jin Ho Lee, Ha Hyun LEE, Dong San Jun, Hui Yong KIM
  • Publication number: 20240080826
    Abstract: A method may comprise: generating first and second FA sequences corresponding to first and second FAs, respectively, based on a first sequence; mapping elements of first and second FA signals, which are respectively generated by modulating the first and second FA sequences, to first and second subcarrier groups corresponding to the first and second FAs, first base station, and first symbol; generating third and fourth FA sequences corresponding to the first and second FAs, respectively, based on a second sequence; mapping elements of third and fourth FA signals, which are respectively generated by modulating the first and second FA sequences, to third and fourth subcarrier groups corresponding to the first and second FAs, second base station, and second symbol; and transmitting a first transmission signal including the first and second FA signals, and a second transmission signal including the third and fourth FA signals.
    Type: Application
    Filed: June 20, 2023
    Publication date: March 7, 2024
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Kapseok CHANG, Cheul Soon KIM, Young-Jo KO, Jung Hoon LEE
  • Publication number: 20240080454
    Abstract: An image encoding/decoding method and apparatus for performing intra prediction mode based intra prediction are provided. An image decoding method may comprise decoding an intra prediction mode of a current block, deriving at least one intra prediction mode from the decoded intra prediction mode of the current block, generating two or more intra prediction blocks using the intra prediction mode of the current block and the derived intra prediction mode, and generating an intra prediction block of the current block based on the two or more intra prediction blocks.
    Type: Application
    Filed: November 14, 2023
    Publication date: March 7, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventors: Sung Chang LIM, Hyun Suk KO, Jung Won KANG, Jin Ho Lee, Ha Hyun LEE, Dong San Jun, Hui Yong KIM
  • Patent number: 11924412
    Abstract: An image encoding/decoding method and apparatus for performing representative sample-based intra prediction are provided. An image decoding method may comprise deriving an intra prediction mode of a current block, configuring a reference sample of the current block, and performing intra prediction for the current block based on the intra prediction mode and the reference sample, wherein the intra prediction is representative sample-based prediction.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: March 5, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Ho Lee, Jung Won Kang, Hyun Suk Ko, Sung Chang Lim, Ha Hyun Lee, Dong San Jun, Hui Yong Kim
  • Publication number: 20240073413
    Abstract: An image encoding/decoding method and apparatus for performing intra prediction using a plurality of reference sample lines are provided. An image decoding method may comprise configuring a plurality of reference sample lines, reconstructing an intra prediction mode of a current block, and performing intra prediction for the current block based on the intra prediction mode and the plurality of reference sample lines.
    Type: Application
    Filed: October 30, 2023
    Publication date: February 29, 2024
    Inventors: Jin Ho LEE, Jung Won KANG, Hyun Suk KO, Sung Chang LIM, Ha Hyun LEE, Dong San JUN, Hui Yong KIM
  • Publication number: 20230403783
    Abstract: Various technologies described herein pertain to an autonomous vehicle computing device for an autonomous vehicle. The autonomous vehicle computing device includes a printed circuit board, a heat sink, and a thermal interface material layer between the printed circuit board and the heat sink. The autonomous vehicle computing device further includes a barrier layer between the thermal interface material layer and the printed circuit board. The thermal interface material layer can be formed of a two-part thermal interface material that cures in place. The barrier layer between the thermal interface material layer and the printed circuit board enables separation of the printed circuit board from the thermal interface material layer if reworking or modification of the autonomous vehicle computing device is desired. The barrier layer can enable the printed circuit board to be separated from the thermal interface material layer in a manner that mitigates damage to the printed circuit board.
    Type: Application
    Filed: August 24, 2023
    Publication date: December 14, 2023
    Inventors: Reza Azizian, Jameson Tai, Brian Schlotterbeck, Yung Chang Ko, Srinivasa Rao Damaraju, Zoran Stefanoski
  • Patent number: 11778722
    Abstract: Various technologies described herein pertain to an autonomous vehicle computing device for an autonomous vehicle. The autonomous vehicle computing device includes a printed circuit board, a heat sink, and a thermal interface material layer between the printed circuit board and the heat sink. The autonomous vehicle computing device further includes a barrier layer between the thermal interface material layer and the printed circuit board. The thermal interface material layer can be formed of a two-part thermal interface material that cures in place. The barrier layer between the thermal interface material layer and the printed circuit board enables separation of the printed circuit board from the thermal interface material layer if reworking or modification of the autonomous vehicle computing device is desired. The barrier layer can enable the printed circuit board to be separated from the thermal interface material layer in a manner that mitigates damage to the printed circuit board.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: October 3, 2023
    Assignee: GM CRUISE HOLDINGS LLC
    Inventors: Reza Azizian, Jameson Tai, Brian Schlotterbeck, Yung Chang Ko, Srinivasa Rao Damaraju, Zoran Stefanoski
  • Patent number: 11754198
    Abstract: A leakage blocking device of a valve is disclosed. When a fluid flowing in a flow path 11 leaks through a gap between the outer circumferential surface of a valve stem bottom (21) and a bottom guide hole (31), a plug 53 of a piston 50 is pushed into a sealing oil chamber 45 by a pressure P1 of the leaked fluid acting on a bottom pressure acting surface S1 of the piston and pressurizes a sealing oil L in the sealing oil chamber 45 to a pressure P2 higher than the pressure P1 of the leaked fluid, thereby blocking leakage of fluid of the valve.
    Type: Grant
    Filed: September 7, 2020
    Date of Patent: September 12, 2023
    Inventor: Ki Chang Ko
  • Patent number: 11737244
    Abstract: Technologies for embedded and immersed heat pipes in automated driving system computers (ADSC) are described herein. In some examples, an ADSC can include one or more cold plates including one or more fluid channels, the one or more fluid channels being configured to circulate a first working fluid from a respective ingress point to a respective egress point; one or more processors coupled to the one or more cold plates; one or more heat pipes coupled to or embedded in the one or more cold plates and configured to collect heat from the one or more processors and transfer the heat away from the one or more processors via a second working fluid in the one or more heat pipes; and a chassis housing the one or more cold plates, the one or more processors, and the one or more heat pipes.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: August 22, 2023
    Assignee: GM Cruise Holdings LLC
    Inventors: Zoran Stefanoski, Yung Chang Ko
  • Publication number: 20230175609
    Abstract: A leakage blocking device of a valve is disclosed. When a fluid flowing in a flow path 11 leaks through a gap between the outer circumferential surface of a valve stem bottom (21) and a bottom guide hole (31), a plug 53 of a piston 50 is pushed into a sealing oil chamber 45 by a pressure P1 of the leaked fluid acting on a bottom pressure acting surface S1 of the piston and pressurizes a sealing oil L in the sealing oil chamber 45 to a pressure P2 higher than the pressure P1 of the leaked fluid, thereby blocking leakage of fluid of the valve.
    Type: Application
    Filed: September 7, 2020
    Publication date: June 8, 2023
    Inventor: Ki Chang KO
  • Publication number: 20230166627
    Abstract: The disclosed technology provides solutions for vehicle charging and in particular, for automating vehicle charging operations. In some aspects, an automated charging station is provided. The charging station can include a base, a rotary actuator mounted to the base, and an arm coupled to the first rotary actuator at a proximal portion, wherein the first rotary actuator is configured to rotate the arm about a z-axis with respect to the base. In some aspects, the automated charging station further includes a linear actuator coupled to the arm at a distal portion, and a charging assembly coupled to the linear actuator, wherein the linear actuator is configured to actuate the charging assembly in a linear direction with respect to the base. Methods for assembling and using an automated charging station are also provided.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 1, 2023
    Inventors: Kyle Vogt, Yung-Chang Ko, Lukas Holoubek, Mark Liu
  • Patent number: 11582194
    Abstract: An apparatus for managing a security policy of a firewall according to an embodiment includes a rule request module that receives one or more requested rules to be applied to a firewall, a rule merge module that merges a pre-applied rule of the firewall and the one or more requested rules when the number of rules applied to the firewall exceeds a maximum number of rule registrations of the firewall due to the requested rule, and a firewall interface module that receives the pre-applied rule from the firewall and provides the pre-applied rule to the rule merge module, and re-registers a merged rule merged through the rule merge module in the firewall, and the rule merge module is configured to merge the pre-applied rule and the one or more requested rules so that a security vulnerable space occurring due to the merging is minimized.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: February 14, 2023
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Yong Jun Jin, Hak Hyun Nam, Yang Hwan Joe, You Chang Ko
  • Publication number: 20220361316
    Abstract: Various technologies described herein pertain to an autonomous vehicle computing device for an autonomous vehicle. The autonomous vehicle computing device includes a printed circuit board, a heat sink, and a thermal interface material layer between the printed circuit board and the heat sink. The autonomous vehicle computing device further includes a barrier layer between the thermal interface material layer and the printed circuit board. The thermal interface material layer can be formed of a two-part thermal interface material that cures in place. The barrier layer between the thermal interface material layer and the printed circuit board enables separation of the printed circuit board from the thermal interface material layer if reworking or modification of the autonomous vehicle computing device is desired. The barrier layer can enable the printed circuit board to be separated from the thermal interface material layer in a manner that mitigates damage to the printed circuit board.
    Type: Application
    Filed: May 4, 2021
    Publication date: November 10, 2022
    Inventors: Reza Azizian, Jameson Tai, Brian Schlotterbeck, Yung Chang Ko, Srinivasa Rao Damaraju, Zoran Stefanoski
  • Publication number: 20220217871
    Abstract: Technologies for embedded and immersed heat pipes in automated driving system computers (ADSC) are described herein. In some examples, an ADSC can include one or more cold plates including one or more fluid channels, the one or more fluid channels being configured to circulate a first working fluid from a respective ingress point to a respective egress point; one or more processors coupled to the one or more cold plates; one or more heat pipes coupled to or embedded in the one or more cold plates and configured to collect heat from the one or more processors and transfer the heat away from the one or more processors via a second working fluid in the one or more heat pipes; and a chassis housing the one or more cold plates, the one or more processors, and the one or more heat pipes.
    Type: Application
    Filed: March 23, 2022
    Publication date: July 7, 2022
    Inventors: Zoran Stefanoski, Yung Chang Ko
  • Patent number: 11347219
    Abstract: The disclosed technology provides a delivery trailer to be hitched to an autonomous vehicle for autonomous delivery of packages. The delivery trailer can include sensors to provide data to the autonomous vehicle to which it is to overcome limitations caused by any occlusion of sensors on the autonomous vehicle by the trailer. Furthermore, the present technology addresses several challenges related to autonomous package delivery.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: May 31, 2022
    Assignee: GM Cruise Holdings, LLC
    Inventors: Jake Glendenning, Yung Chang Ko
  • Patent number: 11324144
    Abstract: Technologies for embedded and immersed vapor chambers in automated driving system computers (ADSC) are described herein. In some examples, an ADSC can include one or more cold plates including one or more fluid channels, the one or more fluid channels being configured to circulate a first working fluid from a respective ingress point to a respective egress point; one or more processors coupled to the one or more cold plates; one or more vapor chambers coupled to or embedded in the one or more cold plates and configured to collect heat from the one or more processors and transfer the heat away from the one or more processors via a second working fluid in the one or more vapor chambers; and a chassis housing the one or more cold plates, the one or more processors, and the one or more vapor chambers.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: May 3, 2022
    Assignee: GM Cruise Holdings, LLC
    Inventors: Zoran Stefanoski, Yung Chang Ko