Patents by Inventor Young-chang Kim

Young-chang 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).

  • Publication number: 20220075274
    Abstract: This application discloses a computing system to identify structures of an integrated circuit capable of being fabricated utilizing a lithographic mask described by mask layout data and to generate process windows for the identified structures based, at least in part, on the mask layout data and a failure definition for the identified structures. The computing system utilizes process windows for the identified structures to determine failure rates for the identified structures based on a distribution of the manufacturing parameters. The computing system determines frequency of occurrences for the identified structures from the mask layout data and generates a die yield metric for the integrated circuit by aggregating the failure rates for the identified structures based on the frequency of occurrences for the identified structures in the integrated circuit. These increases in yield of the integrated circuit allow manufacturers to produce more units per fixed processing cost of the wafer.
    Type: Application
    Filed: August 23, 2019
    Publication date: March 10, 2022
    Inventors: Young Chang Kim, John L. Sturtevant, Andrew Burbine, Christopher Clifford
  • Publication number: 20220027970
    Abstract: An agreement method of a block in a blockchain network by a chair node includes: receiving, from a plurality of congress nodes in a congress, information on an exceptional situation which occurred during agreement processes of a block; transmitting an empty block agreement start message including information on the exceptional situation and verification data for the exceptional situation to the plurality of congress nodes; generating a candidate empty block which does not include a transaction when receiving a delegate request message from at least two congress nodes among the plurality of congress nodes and transmitting the candidate empty block to committee nodes; and generating a final empty block when the candidate empty block is verified by the committee nodes and transmitting the final empty block to all nodes in the blockchain network is provided.
    Type: Application
    Filed: November 27, 2020
    Publication date: January 27, 2022
    Inventors: Young-Chang KIM, Ki Young KIM, Jintae OH
  • Publication number: 20210344033
    Abstract: An embodiment of the present invention relates to a secondary battery, and with respect to a technical problem to be resolved, provided is a secondary battery which has an electrode tab provided by forming a notch on a non-coated part of an electrode plate of an electrode assembly, and which can enable a current collecting plate to come into surface contact with the electrode tab.
    Type: Application
    Filed: September 24, 2019
    Publication date: November 4, 2021
    Inventors: Jung Hyun PARK, Hyun Ki JEONG, Nobuyuki OYAGI, Won Ik LEE, Young Chang KIM
  • Publication number: 20200403776
    Abstract: Disclosed herein are an apparatus and method for achieving distributed consensus based on decentralized Byzantine fault tolerance. The apparatus may include one or more processors and an execution memory for storing at least one program that is executed by the one or more processors, wherein the program is configured to receive delegate request messages, each including a first transaction for requesting distributed consensus proposed by a client, and determine congress candidate nodes forming a consensus quorum, to be consensus nodes based on the delegate request messages, generate a prepare message that includes a second transaction for obtaining consent to results of determination of the consensus nodes, and send the prepare message to the consensus nodes, and receive commit messages, each including an electronic signature of a corresponding consensus node, from the respective consensus nodes, and broadcast a reply message indicative of results of verification of the electronic signatures.
    Type: Application
    Filed: June 16, 2020
    Publication date: December 24, 2020
    Inventors: Jin-Tae OH, Joon-Young PARK, Ki-Young KIM, Dong-Oh KIM, Young-Chang KIM
  • Patent number: 10794751
    Abstract: Provided is a fuel level sensing apparatus for a fuel tank for sensing a remaining fuel level of the fuel tank through a variation in a measured resistance value depending on a position of a wiper in contact with a resistance substrate. The resistance substrate includes a first segment part and a second segment part disposed to be spaced apart from each other. A resistance setting part of the second segment part is connected to positive electrode terminals, and a connecting part of the first segment part is connected to a negative electrode terminal by a negative electrode lead. A connection point of the negative electrode lead connected to the connecting part is formed between both ends of the connecting part in a length direction. A resistance deviation in a measured resistance value depending on a change in the position of the wiper may be reduced.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: October 6, 2020
    Assignee: COAVIS
    Inventors: Young Chang Kim, Joon Seop Kim
  • Patent number: 10574531
    Abstract: Disclosed herein are a method for automatically allocating IP addresses for a distributed storage system in a large-scale torus network and an apparatus for the method. The method for automatically allocating IP addresses includes acquiring neighboring-node information from multiple storage nodes that constitute the system; generating torus network topology for the multiple storage nodes by combining the neighboring-node information; generating IP address information through which a position of each of the multiple storage nodes in a structure corresponding to the torus network topology can be identified; and allocating IP addresses to the multiple storage nodes by delivering the IP address information to the multiple storage nodes.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: February 25, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jeong-Sook Park, Young-Kyun Kim, Young-Chang Kim, Hong-Yeon Kim, Joon-Young Park
  • Publication number: 20190155922
    Abstract: Disclosed herein are a server for a torus network-based distributed file system and a method using the server. A management server includes a system information storage unit for storing system information of a torus network-based distributed file system, a system management unit for managing one or more metadata servers that store metadata of files and multiple data servers that are included in the torus network to distribute and store data, and a communication unit for communicating with a switch connected from a first plane in the torus network or from outside the torus network to a client, and communicating with the metadata servers and the data servers.
    Type: Application
    Filed: October 31, 2018
    Publication date: May 23, 2019
    Inventors: Young-Chang KIM, Young-Kyun KIM, Hong-Yeon KIM, Jeong-Sook PARK, Joon-Young PARK
  • Patent number: 10135926
    Abstract: Provided herein is a shuffle embedded distributed storage system and method supporting virtual merge, the system and method including a distributed shared storage configured to store a virtual merged file; a plurality of map servers connected to the distributed shared storage via a network, and configured to perform a map function and record a map result data computed as a result of the map function in the distributed shared storage by means of a map result file; and a plurality of reduce servers connected to the distributed shared storage and the map servers via the network, wherein the virtual merged file includes a list of the map result files recorded by the plurality of map servers, and an identifier of a reduce server to which the virtual merged file is to be transmitted.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: November 20, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Ki Sung Jin, Young Chang Kim, Young Kyun Kim, Hong Yeon Kim, Wan Choi
  • Publication number: 20180205635
    Abstract: Disclosed herein are a torus network-based file access path selection method for a distributed file system and an apparatus for the method. The file access path selection method includes acquiring, by a client, layout information about a file desired to be accessed, searching multiple data servers for an object data server based on the layout information, and determining a file access pattern based on a file access location and a size of the file, and setting any one of a shortest path for accessing the object data server and a secondary path having a hop count increased by one hop from that of the shortest path, as an access path to the object data server in consideration of the file access pattern and a bandwidth utilization rate for a network address located on the shortest path.
    Type: Application
    Filed: August 23, 2017
    Publication date: July 19, 2018
    Inventors: Young-Chang KIM, Young-Kyun KIM, Hong-Yeon KIM, Jeong-Sook PARK, Joon-Young PARK
  • Publication number: 20180205613
    Abstract: Disclosed herein are a method for automatically allocating IP addresses for a distributed storage system in a large-scale torus network and an apparatus for the method. The method for automatically allocating IP addresses includes acquiring neighboring-node information from multiple storage nodes that constitute the system; generating torus network topology for the multiple storage nodes by combining the neighboring-node information; generating IP address information through which a position of each of the multiple storage nodes in a structure corresponding to the torus network topology can be identified; and allocating IP addresses to the multiple storage nodes by delivering the IP address information to the multiple storage nodes.
    Type: Application
    Filed: July 27, 2017
    Publication date: July 19, 2018
    Inventors: Jeong-Sook PARK, Young-Kyun KIM, Young-Chang KIM, Hong-Yeon KIM, Joon-Young PARK
  • Publication number: 20180203875
    Abstract: Disclosed herein are a method for extending and shrinking a volume of a distributed file system based on a torus network and an apparatus for the same. The method for extending a volume includes searching for a volume neighboring a target volume, the extension of which is requested; determining a direction in which a data server is to be added in consideration of whether the neighboring volume is to be extended; searching for multiple candidate data servers in the direction in which a data server is to be added based on the target volume; and adding any one of the multiple candidate data servers to the target volume in consideration of at least one of a server state and a network communication cost.
    Type: Application
    Filed: July 27, 2017
    Publication date: July 19, 2018
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Joon-Young PARK, Young-Kyun KIM, Young-Chang KIM, Hong-Yeon KIM, Jeong-Sook PARK
  • Publication number: 20180087952
    Abstract: Provided is a fuel level sensing apparatus for a fuel tank for sensing a remaining fuel level of the fuel tank through a variation in a measured resistance value depending on a position of a wiper in contact with a resistance substrate. The resistance substrate includes a first segment part and a second segment part disposed to be spaced apart from each other. A resistance setting part of the second segment part is connected to positive electrode terminals, and a connecting part of the first segment part is connected to a negative electrode terminal by a negative electrode lead. A connection point of the negative electrode lead connected to the connecting part is formed between both ends of the connecting part in a length direction. A resistance deviation in a measured resistance value depending on a change in the position of the wiper may be reduced.
    Type: Application
    Filed: September 21, 2017
    Publication date: March 29, 2018
    Inventors: Young Chang Kim, Joon Seop Kim
  • Patent number: 9892129
    Abstract: A distributed file system based on a torus network includes a plurality of metadata servers configured to store metadata of files, a plurality of data servers configured to divide data and store the divided data in a distributed manner, and at least one management server configured to manage the metadata servers and the data servers. The plurality of metadata servers, the plurality of data servers, and the at least one management server are disposed on first to nth planes each of which consists of a plurality of nodes, and the first plane is connected to a plurality of clients through a switch.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: February 13, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jeong Sook Park, Young Chang Kim, Young Kyun Kim, Hong Yeon Kim
  • Patent number: 9876874
    Abstract: Disclosed herein is a network selecting apparatus including: a determining unit checking an operation state of a cache server in which replicated data corresponding to a data request signal are stored and determining whether the cache server is normally operated, when the data request signal is received from a client; and a selecting unit selecting a first network so that the replicated data are transmitted to input and output devices when the cache server is normally operated and selecting a second network so that original data corresponding to the data request signal are transmitted from a storage server in which the original data are stored to the input and output devices when the cache server is not normally operated.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: January 23, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Chei-Yol Kim, Sang-Min Lee, Jeong-Sook Park, Young-Chang Kim, Soo-Young Kim
  • Patent number: 9825325
    Abstract: A rechargeable battery with improved safety and increased capacity of a cell including: an electrode assembly including a first electrode, a second electrode, and a separator between the first and second electrodes; a case comprising an opening configured to receive the electrode assembly; a cap assembly coupled to the sides of the opening of the case; and a lead tab connecting the first electrode to the cap assembly, wherein the first electrode includes a coating region where an active material is coated on both surfaces of a current collector, a first uncoated region where the active material is not coated on the current collector, and a second uncoated region where the active material is not coated on one surface of the current collector.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: November 21, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yun-Woong Kim, Chang-Young Choi, Soon-Chul Byun, Young-Chang Kim
  • Patent number: 9804965
    Abstract: A virtual machine host server includes a virtual machine in which a guest operating system is installed and operated, a cache manager for processing at least one of an open request, a close request, and an input/output request for a disk image file of the virtual machine, which is stored in a storage system, and managing a boot workload map and a boot segment, a cache device for caching the boot segment, and a prefetch manager for prefetching the boot segment from the cache device.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: October 31, 2017
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Young Chang Kim, Ki Sung Jin, Young Kyun Kim, Hong Yeon Kim, Wan Choi
  • Publication number: 20170192964
    Abstract: A distributed file system based on a torus network includes a plurality of metadata servers configured to store metadata of files, a plurality of data servers configured to divide data and store the divided data in a distributed manner, and at least one management server configured to manage the metadata servers and the data servers. The plurality of metadata servers, the plurality of data servers, and the at least one management server are disposed on first to nth planes each of which consists of a plurality of nodes, and the first plane is connected to a plurality of clients through a switch.
    Type: Application
    Filed: May 19, 2016
    Publication date: July 6, 2017
    Inventors: Jeong Sook PARK, Young Chang KIM, Young Kyun KIM, Hong Yeon KIM
  • Patent number: 9680954
    Abstract: There are provided a system and method for providing a virtual desktop service using a cache server. A system for providing a virtual desktop service according to the invention includes a host server configured to provide a virtual desktop service to a client terminal using a virtual machine, a distributed file system configured to store data for the virtual machine, and a cache server that is provided for each host server group having at least one host server, and performs a read process or a write process of data using physically separate caches when the read process or write process of the data is requested from the virtual machine in the host server.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: June 13, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jeong-Sook Park, Soo-Young Kim, Chei-Yol Kim, Young-Chang Kim, Sang-Min Lee, Hong-Yeon Kim, Young-Kyun Kim
  • Patent number: 9595523
    Abstract: A semiconductor integrated circuit device may include a standard cell region on a surface of a substrate and a first active region on the surface of the substrate in the standard cell region, wherein the first active region has a length in a first direction. A second active region may be on the surface of the substrate in the standard cell region, the second active region may have a length in the first direction, the length of the second active region may be greater than the length of the first active region, and an axis in a second direction may intersect centers of the first and second active regions so that the first and second active regions are symmetric about the axis in the second direction. A first gate electrode may extend across the first active region in the first direction, and a second gate electrode may extend across the second active region in the first direction.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: March 14, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-Seok Shim, Young-Chang Kim, Dong-Geon Kim
  • Publication number: 20160366225
    Abstract: Provided herein is a shuffle embedded distributed storage system and method supporting virtual merge, the system and method including a distributed shared storage configured to store a virtual merged file; a plurality of map servers connected to the distributed shared storage via a network, and configured to perform a map function and record a map result data computed as a result of the map function in the distributed shared storage by means of a map result file; and a plurality of reduce servers connected to the distributed shared storage and the map servers via the network, wherein the virtual merged file includes a list of the map result files recorded by the plurality of map servers, and an identifier of a reduce server to which the virtual merged file is to be transmitted.
    Type: Application
    Filed: October 21, 2015
    Publication date: December 15, 2016
    Inventors: Ki Sung JIN, Young Chang KIM, Young Kyun KIM, Hong Yeon KIM, Wan CHOI