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: 20180203875Abstract: 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: ApplicationFiled: July 27, 2017Publication date: July 19, 2018Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Joon-Young PARK, Young-Kyun KIM, Young-Chang KIM, Hong-Yeon KIM, Jeong-Sook PARK
-
Publication number: 20180205613Abstract: 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: ApplicationFiled: July 27, 2017Publication date: July 19, 2018Inventors: Jeong-Sook PARK, Young-Kyun KIM, Young-Chang KIM, Hong-Yeon KIM, Joon-Young PARK
-
Publication number: 20180087952Abstract: 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: ApplicationFiled: September 21, 2017Publication date: March 29, 2018Inventors: Young Chang Kim, Joon Seop Kim
-
Patent number: 9892129Abstract: 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: GrantFiled: May 19, 2016Date of Patent: February 13, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jeong Sook Park, Young Chang Kim, Young Kyun Kim, Hong Yeon Kim
-
Patent number: 9876874Abstract: 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: GrantFiled: April 21, 2014Date of Patent: January 23, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Chei-Yol Kim, Sang-Min Lee, Jeong-Sook Park, Young-Chang Kim, Soo-Young Kim
-
Patent number: 9825325Abstract: 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: GrantFiled: October 31, 2014Date of Patent: November 21, 2017Assignee: Samsung SDI Co., Ltd.Inventors: Yun-Woong Kim, Chang-Young Choi, Soon-Chul Byun, Young-Chang Kim
-
Patent number: 9804965Abstract: 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: GrantFiled: September 9, 2015Date of Patent: October 31, 2017Assignee: Electronics and Telecommunications Research InstituteInventors: Young Chang Kim, Ki Sung Jin, Young Kyun Kim, Hong Yeon Kim, Wan Choi
-
Publication number: 20170192964Abstract: 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: ApplicationFiled: May 19, 2016Publication date: July 6, 2017Inventors: Jeong Sook PARK, Young Chang KIM, Young Kyun KIM, Hong Yeon KIM
-
Patent number: 9680954Abstract: 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: GrantFiled: February 28, 2014Date of Patent: June 13, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jeong-Sook Park, Soo-Young Kim, Chei-Yol Kim, Young-Chang Kim, Sang-Min Lee, Hong-Yeon Kim, Young-Kyun Kim
-
Patent number: 9595523Abstract: 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: GrantFiled: March 18, 2016Date of Patent: March 14, 2017Assignee: Samsung Electronics Co., Ltd.Inventors: Woo-Seok Shim, Young-Chang Kim, Dong-Geon Kim
-
Publication number: 20160366225Abstract: 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: ApplicationFiled: October 21, 2015Publication date: December 15, 2016Inventors: Ki Sung JIN, Young Chang KIM, Young Kyun KIM, Hong Yeon KIM, Wan CHOI
-
Publication number: 20160204104Abstract: 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: ApplicationFiled: March 18, 2016Publication date: July 14, 2016Inventors: Woo-Seok SHIM, Young-Chang KIM, Dong-Geon KIM
-
Publication number: 20160162409Abstract: 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: ApplicationFiled: September 9, 2015Publication date: June 9, 2016Inventors: Young Chang KIM, Ki Sung JIN, Young Kyun KIM, Hong Yeon KIM, Wan CHOI
-
Patent number: 9318486Abstract: 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: GrantFiled: October 10, 2014Date of Patent: April 19, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Woo-Seok Shim, Young-Chang Kim, Dong-Geon Kim
-
Publication number: 20150287718Abstract: 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: ApplicationFiled: October 10, 2014Publication date: October 8, 2015Inventors: Woo-Seok SHIM, Young-Chang KIM, Dong-Geon KIM
-
Publication number: 20150140381Abstract: 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: ApplicationFiled: October 31, 2014Publication date: May 21, 2015Inventors: Yun-Woong Kim, Chang-Young Choi, Soon-Chul Byun, Young-Chang Kim
-
Publication number: 20140324951Abstract: 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: ApplicationFiled: April 21, 2014Publication date: October 30, 2014Applicant: Electronics and Telecommunications Research InstituteInventors: Chei-Yol KIM, Sang-Min LEE, Jeong-Sook PARK, Young-Chang KIM, Soo-Young KIM
-
Publication number: 20140317223Abstract: 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: ApplicationFiled: February 28, 2014Publication date: October 23, 2014Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jeong-Sook PARK, Soo-Young KIM, Chei-Yol KIM, Young-Chang KIM, Sang-Min LEE, Hong-Yeon KIM, Young-Kyun KIM
-
Publication number: 20140297603Abstract: A replicated file deduplication apparatus generates a hash key of a requested data block, determines whether the same data block as the requested data block exists in data blocks of a replicated image file that is derived from the same golden image file as the requested data block using the hash key of the requested data block, and records, if the same data block as the requested data block exists, information of a chunk in which the same data block as the requested data block is stored at a layout of the requested data block.Type: ApplicationFiled: June 26, 2013Publication date: October 2, 2014Inventors: Young-Chang KIM, Hong Yeon KIM, Young Kyun KIM
-
Publication number: 20130297969Abstract: The present invention relates to a method of improving file write performance and providing availability in a hybrid storage system. When a file writing target server information request signal is received from a client, any one cache server is selected in consideration of storage spaces of cache servers, information about the selected cache server to the client is transmitted so that the client stores the file in the selected cache server. When a duplicate writing target server information request is received from the selected cache server, any one first data server is selected in consideration of storage spaces of respective data servers, information about the selected first data server is transmitted to the cache server so that the cache server stores a duplicate of the file in the first data server. Information about storage of the file and the duplicate is received, and then file metadata is stored.Type: ApplicationFiled: April 17, 2013Publication date: November 7, 2013Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Young-Chang KIM, Hong-Yeon KIM, Wan CHOI