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公开(公告)号：US20230168977A1
公开(公告)日：2023-06-01
申请号：US18057071
申请日：2022-11-18
发明人： Sang-Min LEE , Hong-Yeon KIM , Baik-Song AN , Myung-Hoon CHA
CPC分类号： G06F11/1484 , G06F11/079 , G06F11/0772
摘要： Disclosed herein are an apparatus and method for page allocation in a many-to-one virtualization environment. The method may include determining whether a page fault interrupt is caused by page initialization for page allocation, sending an ownership change message to a node having ownership of the corresponding page when the page fault interrupt is determined to be caused by page initialization, and initializing the corresponding page upon receiving an ownership-change-processing-complete message.
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公开(公告)号：US20230110566A1
公开(公告)日：2023-04-13
申请号：US17938654
申请日：2022-10-06
发明人： Baik-Song AN , Hong-Yeon KIM , Sang-Min LEE , Myung-Hoon CHA
IPC分类号： G06F3/06
摘要： Disclosed herein are a synchronization method for improving the concurrent read performance of a critical section in distributed shared memory and an apparatus for the same. The synchronization method, performed by a distributed-shared-memory management apparatus in a physical node of a multi-node system, includes checking whether a lock is held on each node based on a read-write lock having lock variables for respective nodes in a distributed shared memory environment, acquiring a lock for a read operation or a write operation in consideration of whether a lock is held on each node, and releasing the lock based on the lock variables for the respective nodes when the read operation or the write operation is terminated.
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公开(公告)号：US20200319939A1
公开(公告)日：2020-10-08
申请号：US16836246
申请日：2020-03-31
发明人： Kang-Ho KIM , Kwang-Won KOH , Hong-Yeon KIM , Baik-Song AN , Sang-Min LEE
摘要： Disclosed herein are a distributed system and a method for operating the distributed system. The method for operating a distributed system including a server and multiple clients includes acquiring, by a first client of the multiple clients, a lock on a shared resource using a first table of the server and a second table of the client, and releasing, by the first client, a lock on the shared resource using the first table and the second table, wherein the first table is a lock (DSLock) table for storing information about a distributed shared resource, and the second table is a data structure (DSLock node) table for a lock request.
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4.发明申请公开(公告)号：US20180307638A1
公开(公告)日：2018-10-25
申请号：US15895752
申请日：2018-02-13
发明人： Ki-Sung JIN , Young-Kyun KIM , Hong-Yeon KIM , Sang-Min LEE
CPC分类号： G06F13/28 , G06F3/0643 , G06F3/0659 , G06F9/544 , G06F9/545 , G06F16/1824 , G06F16/188 , H04L67/1097
摘要： Disclosed herein are a method and system for supporting user-level DMA I/O in a distributed file system environment. The system includes a DMA I/O library located in a user space and configured to process data-processing requests of an application using a control channel or a data channel, a distributed file system client process located in the user space and configured to process data while communicating with a remote distributed storage cluster, a VFS located in a kernel space, and a FUSE kernel module located in the kernel space, wherein the control channel is a path along which the DMA I/O library and the distributed file system client process are connected to each other through the VFS and the FUSE kernel module, and wherein the data channel is a path along which the DMA I/O library and the distributed file system client process are directly connected to each other.
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5.发明申请COMMUNICATION SYSTEM, CONVERGED COMMUNICATION NODE, AND METHOD FOR SUPPORTING CLOUD SERVICE 审中-公开通信系统，通信通信节点和支持云服务的方法公开(公告)号：US20150100696A1
公开(公告)日：2015-04-09
申请号：US14247490
申请日：2014-04-08
发明人： Sang-Min LEE , Bhum Cheol LEE , Jung Hee LEE , Young Ho PARK , Kang Il CHOI , Seung-Woo LEE
IPC分类号： H04L12/24
CPC分类号： H04L41/509 , H04L41/5041
摘要： A communication system for supporting a cloud service comprising: a communication node connected to a network; an IDC connected to the network; a converged communication apparatus connected to the network and configured to interact with the IDC to integrally manage a resource stored in the IDC, and, upon a receipt of a request for the cloud service, to interact with the communication node to transfer the resource to a user who makes the cloud service request or a service provider which makes the cloud service request.
摘要翻译： 一种用于支持云服务的通信系统，包括：连接到网络的通信节点; 连接到网络的IDC; 连接到网络并被配置为与IDC交互以整合地管理存储在IDC中的资源的融合通信装置，并且在接收到云服务的请求时，与通信节点进行交互以将资源传送到 制作云服务请求的用户或使云服务请求的服务提供商。
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公开(公告)号：US20150242437A1
公开(公告)日：2015-08-27
申请号：US14629513
申请日：2015-02-24
发明人： Sang-Min LEE , Hong-Yeon KIM , Young-Kyun KIM
CPC分类号： G06F17/30194 , G06F17/30168 , H04L67/2842
摘要： Disclosed are a method and apparatus for reading data in a distributed file system in which a client and a server are separated. In the method and apparatus, a prefetching operation is performed to provide a continuous read function with high performance even in the distributed file system so that an optimum continuous read function of a local file system within the client may be effectively supported when an application program of the client requests continuous reading on a file (or chunk).
摘要翻译： 公开了一种在客户端和服务器分离的分布式文件系统中读取数据的方法和装置。 在该方法和装置中，执行预取操作以提供即使在分布式文件系统中具有高性能的连续读取功能，使得当客户端中的本地文件系统的最佳连续读取功能可以被有效地支持时， 客户端请求连续读取文件（或块）。
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7.发明申请SYSTEM AND METHOD FOR PROVIDING VIRTUAL DESKTOP SERVICE USING CACHE SERVER 有权使用高速缓存服务器提供虚拟桌面服务的系统和方法公开(公告)号：US20140317223A1
公开(公告)日：2014-10-23
申请号：US14193736
申请日：2014-02-28
发明人： Jeong-Sook PARK , Soo-Young KIM , Chei-Yol KIM , Young-Chang KIM , Sang-Min LEE , Hong-Yeon KIM , Young-Kyun KIM
IPC分类号： H04L29/08
CPC分类号： H04L67/2842 , H04L67/1097 , H04L67/2847
摘要： 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.
摘要翻译： 提供了一种使用缓存服务器提供虚拟桌面服务的系统和方法。 根据本发明的用于提供虚拟桌面服务的系统包括被配置为使用虚拟机向客户终端提供虚拟桌面服务的主机服务器，被配置为存储虚拟机的数据的分布式文件系统，以及缓存服务器， 被提供给具有至少一个主机服务器的每个主机服务器组，并且当从主机服务器中的虚拟机请求了数据的读取处理或写入处理时，使用物理上分离的高速缓存来执行数据的读取处理或写入处理。
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公开(公告)号：US20240303523A1
公开(公告)日：2024-09-12
申请号：US18515564
申请日：2023-11-21
发明人： Sang-Min LEE , Young-Chul KIM , Soo-Cheol OH , Jin-Ho ON , Ki-Sung JIN , Gyu-Il CHA
IPC分类号： G06N10/40
CPC分类号： G06N10/40
摘要： Disclosed herein are an apparatus and method for performing a fault-tolerant logical Hadamard gate operation. The apparatus is configured to perform a transversal logical Hadamard (H) operation of defining a logical quantum state and logical operators of a Hadamard-transformed logical qubit on a logical qubit of a prepared encoding flavor having an arbitrary quantum state, deform a boundary of the logical qubit while maintaining the logical quantum state using a boundary deformation technology, and perform an automatic flip of transforming a flavor of the logical qubit by flipping a rotated surface code while maintaining the logical quantum state and the definition of logical operators.
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公开(公告)号：US20210240827A1
公开(公告)日：2021-08-05
申请号：US17100541
申请日：2020-11-20
发明人： Jung-Tae KIM , Ji-Hyeon SONG , Ik-Kyun KIM , Young-Su KIM , Jong-Hyun KIM , Jong-Geun PARK , Sang-Min LEE , Jong-Hoon LEE
摘要： Disclosed herein are an apparatus and method for detecting a malicious script. The apparatus includes one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program is configured to extract token-type features, each of which corresponds to a lexical unit, and tree-node-type features of an abstract syntax tree from an input script, to train two learning models to respectively learn two pieces of learning data that are generated in consideration of features extracted respectively from the token-type features and the node-type features as having the highest frequency, and to detect whether the script is a malicious script based on the result of ensemble-based malicious script detection performed for the script, which is acquired using an ensemble detection model generated from the two learning models.
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公开(公告)号：US20190394215A1
公开(公告)日：2019-12-26
申请号：US16202869
申请日：2018-11-28
发明人： Jong-Hoon LEE , Youngsoo KIM , Ik Kyun KIM , Jung Tae KIM , Jonghyun KIM , Hyun Joo KIM , Jong Geun PARK , Sang-Min LEE , Sunoh CHOI
摘要： A method and a computation apparatus detecting cyber threats using a neural network through steps of: generating a learning model by performing machine learning on training data based on baseline data, converting a security event collected in real time into input data for the neural network, and determining, as an output corresponding to the input data based on the learning model, whether the security event is normal or threat are provided.
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