-
公开(公告)号：US09876874B2
公开(公告)日：2018-01-23
申请号：US14257289
申请日：2014-04-21
Inventor： Chei-Yol Kim , Sang-Min Lee , Jeong-Sook Park , Young-Chang Kim , Soo-Young Kim
IPC: H04L29/08
CPC classification number: H04L67/2852 , H04L67/1097
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.
-
公开(公告)号：US09680954B2
公开(公告)日：2017-06-13
申请号：US14193736
申请日：2014-02-28
Inventor： Jeong-Sook Park , Soo-Young Kim , Chei-Yol Kim , Young-Chang Kim , Sang-Min Lee , Hong-Yeon Kim , Young-Kyun Kim
IPC: H04L29/08
CPC classification number: H04L67/2842 , H04L67/1097 , H04L67/2847
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.
-
3.发明公开公开(公告)号：US20230188367A1
公开(公告)日：2023-06-15
申请号：US17844596
申请日：2022-06-20
Inventor： Young-Chang Kim , Ki-Young Kim , Jin-Tae Oh
Abstract: Disclosed herein are an apparatus and method for apparatus for synchronizing consensus node information in a blockchain network. The apparatus for synchronizing consensus node information includes one or more processors, and execution memory for storing at least one program that is executed by the one or more processors, wherein the at least one program is configured to receive a committed message for block consensus from the blockchain network and verify nodes participating in the block consensus, set a block number required to participate in the block consensus to a block size of a start block of a section corresponding to the block consensus, and broadcast consensus node information including the block number to the blockchain network.
-
公开(公告)号：US11343073B2
公开(公告)日：2022-05-24
申请号：US16903057
申请日：2020-06-16
Inventor： Jin-Tae Oh , Joon-Young Park , Ki-Young Kim , Dong-Oh Kim , Young-Chang Kim
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.
-
Patent Agency Ranking
公开(公告)号：US10574531B2
公开(公告)日：2020-02-25
申请号：US15662042
申请日：2017-07-27
Inventor： Jeong-Sook Park , Young-Kyun Kim , Young-Chang Kim , Hong-Yeon Kim , Joon-Young Park
IPC: G06F15/173 , H04L12/24 , H04L29/12 , H04L29/08 , H04L12/26
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.
-
公开(公告)号：US12277587B2
公开(公告)日：2025-04-15
申请号：US17105761
申请日：2020-11-27
Inventor： Young-Chang Kim , Ki Young Kim , Jintae Oh
IPC: G06Q30/0601 , H04L9/32 , H04L9/00
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.
-
公开(公告)号：US12062040B2
公开(公告)日：2024-08-13
申请号：US17566411
申请日：2021-12-30
Inventor： Heesang Jin , Jintae Oh , Ki Young Kim , Young-Chang Kim
CPC classification number: G06Q20/3674 , G06Q20/065 , G06Q20/38215 , G06Q20/3827 , G06Q20/389
Abstract: A block consensus method of a computing device is provided. The computing device receives a delegate request message including transaction hashes from each of a plurality of nodes, generates a prepared block including transaction hashes based on the delegate request message, and transmits a prepare message including the prepared block to the nodes. The computing device receives a commit message including a proof of consensus on a validity of the prepared block from the nodes, and transmits a reply message including a final block decided based on the commit message.
-
公开(公告)号：US12184801B2
公开(公告)日：2024-12-31
申请号：US17844596
申请日：2022-06-20
Inventor： Young-Chang Kim , Ki-Young Kim , Jin-Tae Oh
Abstract: Disclosed herein are an apparatus and method for apparatus for synchronizing consensus node information in a blockchain network. The apparatus for synchronizing consensus node information includes one or more processors, and execution memory for storing at least one program that is executed by the one or more processors, wherein the at least one program is configured to receive a committed message for block consensus from the blockchain network and verify nodes participating in the block consensus, set a block number required to participate in the block consensus to a block size of a start block of a section corresponding to the block consensus, and broadcast consensus node information including the block number to the blockchain network.
-
公开(公告)号：US20230066169A1
公开(公告)日：2023-03-02
申请号：US17870633
申请日：2022-07-21
Inventor： Jin-Tae OH , Ki-Young Kim , Young-Chang Kim
Abstract: Disclosed herein is a method for distributed consensus. The method includes performing, by each of nodes forming a blockchain, an operation corresponding to a success probability (p) a number of times corresponding to the share value thereof; sending, by nodes having at least one share corresponding to the operation which is successful, a message for being selected as consensus nodes; and performing, by the consensus nodes, which are nodes having consensus shares selected from among the shares corresponding to the operation which is successful, distributed consensus. Here, the nodes forming the blockchain include major shareholder nodes for processing transactions.
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.016 seconds)
