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    • 13. 发明申请
    • SOFTWARE PORTAL SYSTEM FOR PROVIDING RELATION INFORMATION OF SOFTWARE AND DATA FORMAT AND METHOD OF OPERATING THE SAME
    • 用于提供软件和数据格式的关系信息的软件门户系统及其操作方法
    • US20090328029A1
    • 2009-12-31
    • US12517706
    • 2007-12-04
    • Sung Joo KangKyong I. KuWan ChoiMoon Young ChungMyung Joon Kim
    • Sung Joo KangKyong I. KuWan ChoiMoon Young ChungMyung Joon Kim
    • G06F9/44
    • G06F9/44505
    • A software portal system for providing relation information of software and a data format, and a method of operating the same are provided. To provide software by downloading or service simultaneously with relation information between software and software, software and a data format, and data formats, the software portal system includes a relation information management unit and a web service providing unit. The relation information system defines a relation of software and a data format to constitute and manage relation information of the software and the data format. The web service providing unit acquires and provides the relation information of the software managed by the relation information management unit when the software is provided by downloading or service, and acquires and provides the relation information of the data format managed by the relation information management unit when the relation information of the data format is inquired. Accordingly, a user can be provided with high quality of service.
    • 提供了一种用于提供软件和数据格式的关系信息的软件门户系统及其操作方法。 通过软件与软件,软件和数据格式以及数据格式之间的关系信息同时下载或同时提供软件,软件门户系统包括关系信息管理单元和Web服务提供单元。 关系信息系统定义软件和数据格式的关系,构成和管理软件的关系信息和数据格式。 当通过下载或服务提供软件时,Web服务提供单元获取并提供由关系信息管理单元管理的软件的关系信息,并且获取并提供由关系信息管理单元管理的数据格式的关系信息, 查询数据格式的关系信息。 因此,可以向用户提供高质量的服务。
    • 14. 发明授权
    • Hierarchical system configuration method and integrated scheduling method to provide multimedia streaming service on two-level double cluster system
    • 分层系统配置方法和综合调度方法,提供双层双集群系统的多媒体流服务
    • US07584292B2
    • 2009-09-01
    • US11290073
    • 2005-11-30
    • Seung Jo BaeJin Mee KimSeung Hyub JeonHag Young KimMyung Joon Kim
    • Seung Jo BaeJin Mee KimSeung Hyub JeonHag Young KimMyung Joon Kim
    • G06F15/16
    • H04L67/1008H04L67/1002Y10S707/99939
    • A hierarchical system configuration method and an integrated scheduling method for offering a multimedia streaming service on a two-level double cluster system are provided. The hierarchical system configuration method includes the steps of: determining whether one server node exists; if one server node exists, determining whether one virtual server node/specific network storing and merging block exists; and if one virtual server node/specific network storing and merging block exists, setting a system configuration mode for configuring a single virtual server node based multimedia streaming server system and determining a representative network address of a current system, wherein depending on a scale and a characteristic of the multimedia streaming service, a hierarchical multimedia streaming server system is configured into a single virtual server node based system, which is a minimum-scale, a mono-level single virtual cluster based system, which is a medium-scale, and a two-level double cluster based system, which is a maximum-scale.
    • 提供了一种用于在两层双群集系统上提供多媒体流服务的分层系统配置方法和集成调度方法。 分级系统配置方法包括以下步骤:确定是否存在一个服务器节点; 如果存在一个服务器节点,则确定是否存在一个虚拟服务器节点/特定网络存储和合并块; 并且如果存在一个虚拟服务器节点/特定网络存储和合并块,则设置用于配置基于单个虚拟服务器节点的多媒体流服务器系统并确定当前系统的代表性网络地址的系统配置模式,其中取决于比例和 多媒体流服务的特征,分层多媒体流服务器系统被配置成基于单个虚拟服务器节点的系统,该系统是最小规模的,基于单级单个虚拟集群的系统,其是中等规模的,并且 两级双集群系统,最大规模。
    • 19. 发明申请
    • DISTRIBUTED OBJECT SHARING SYSTEM AND METHOD THEREOF
    • 分布式对象共享系统及其方法
    • US20080133967A1
    • 2008-06-05
    • US11948918
    • 2007-11-30
    • Sang Min LeeJune KimMyung Joon Kim
    • Sang Min LeeJune KimMyung Joon Kim
    • G06F11/14
    • G06F11/2082G06F11/2087
    • A distributed object sharing system and a method thereof are provided. In a file server writing method for storing an object in a RAID (redundant array of inexpensive disks) apparatus having a plurality of storage apparatuses, the file server writing method includes: a first process of, when an object writing command for a specific object is generated during error recovery in an erroneous storage apparatus, checking a recovery state of the object with reference to recovery state information provided from a metadata server; a second process of, when the recovery of the object is completed, performing the object writing command on a normal storage apparatus and a recovery storage apparatus; a third process of, when the recovery of the object is proceeding, receiving the recovery date information from the metadata server again, checking the recovery state of the object again, and determining whether or not to perform the second process; a fourth process of, when the second process is determined not to performed, performing the object writing command on only the normal storage apparatus and receiving the recovery state information from the metadata server again; and a fifth process of checking the recovery state of the object with reference to the received recovery date information and, when the recovery of the object is completed, additionally performing the object writing command on the recovery storage apparatus. Accordingly, it is possible to prevent data loss and perform I/O command during error recovery.
    • 提供了一种分布式对象共享系统及其方法。 在用于将对象存储在具有多个存储装置的RAID(廉价磁盘的冗余阵列)装置的文件服务器写入方法中,文件服务器写入方法包括:第一处理,当对特定对象的对象写入命令为 参照从元数据服务器提供的恢复状态信息,检查对象的恢复状态; 当对象的恢复完成时,在正常存储装置和恢复存储装置上执行对象写入命令的第二处理; 第三过程,当对象的恢复正在进行时,再次从元数据服务器接收恢复日期信息,再次检查对象的恢复状态,并确定是否执行第二处理; 第四处理当第二处理被确定为不执行时,仅在普通存储装置上执行对象写入命令,并再次从元数据服务器接收恢复状态信息; 以及参照所接收的恢复日期信息来检查对象的恢复状态的第五处理,并且当对象的恢复完成时,在恢复存储装置上另外执行对象写入命令。 因此,可以防止数据丢失,并在错误恢复期间执行I / O命令。
    • 20. 发明授权
    • Method of designing watermark in consideration of wiener attack and whitening filtered detection
    • 考虑到智能攻击和美白滤波检测设计水印的方法
    • US07076081B2
    • 2006-07-11
    • US10271530
    • 2002-10-17
    • Youngha HwangKiryung LeeKyung Ae MoonMyung Joon Kim
    • Youngha HwangKiryung LeeKyung Ae MoonMyung Joon Kim
    • G06K9/00
    • G06T1/005G06T2201/0052G06T2201/0065H04N1/32149H04N1/3232
    • Disclosed a method of designing a watermark having the power spectral density optimized so that the detection performance can be improved by employing the whitening filtered detection after the Wiener attack. The power spectral density of the watermark is designed using an optimization method that can improve the entire detection performance by reflecting the gain of the whitening filter after the Wiener attack. A higher detection gain is obtained using the whitening filter after the Wiener attack, and the expected value of the difference between test statistics of the two hypotheses that the watermark exists and the watermark does not exist, respectively, is maximized to optimize the detection performance. Regarding the expected value of the difference between the test statistics as an objective function, the power spectral density of the watermark, which corresponds to a maximum differentiated value of the power spectral density of the watermark using the Lagrange multiplier method, is obtained.
    • 公开了一种设计具有优化的功率谱密度的水印的方法,以便可以在Wiener攻击之后采用白化滤波检测来提高检测性能。 使用优化方法设计水印的功率谱密度,通过在Wiener攻击后反映白化滤波器的增益,可以提高整个检测性能。 在Wiener攻击之后使用白化滤波器获得更高的检测增益,并且最大化分别对水印存在的两个假设的测试统计和不存在水印的测试统计之间的差异的期望值进行优化。 关于作为目标函数的测试统计之间的差异的期望值,获得与使用拉格朗日乘数法的水印的功率谱密度的最大微分值相对应的水印的功率谱密度。