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公开(公告)号:US20090031423A1
公开(公告)日:2009-01-29
申请号:US11961062
申请日:2007-12-20
申请人: Peng Liu , Yoon-Chan Jhi , Lunquan Li
发明人: Peng Liu , Yoon-Chan Jhi , Lunquan Li
IPC分类号: G06F21/00
CPC分类号: H04L63/145 , H04L63/10 , H04L63/1408 , H04L63/1491
摘要: A proactive worm containment (PWC) solution for enterprises uses a sustained faster-than-normal outgoing connection rate to determine if a host is infected. Two novel white detection techniques are used to reduce false positives, including a vulnerability time window lemma to avoid false initial containment, and a relaxation analysis to uncontain (or unblock) those mistakenly contained (or blocked) hosts, if there are any. The system integrates seamlessly with existing signature-based or filter-based worm scan filtering solutions. Nevertheless, the invention is signature free and does not rely on worm signatures. Nor is it protocol specific, as the approach performs containment consistently over a large range of worm scan rates. It is not sensitive to worm scan rate and, being a network-level approach deployed on a host, the system requires no changes to the host's OS, applications, or hardware.
摘要翻译: 企业的主动式蠕虫病毒(PWC)解决方案使用持续的比正常速度更快的传出连接速率来确定主机是否被感染。 使用两种新颖的白色检测技术来减少误报,包括漏洞时间窗口引理,以避免错误的初始容纳,以及松弛分析,以解除(或解除阻塞)那些被错误地包含(或阻止)的主机,如果有的话。 该系统与现有的基于签名或基于过滤器的蠕虫扫描过滤解决方案无缝集成。 然而,本发明是免签名的,不依赖于蠕虫特征。 该方法也不具体,因为该方法在大范围的蠕虫扫描速率下始终保持一致。 它对蠕虫扫描速率不敏感,作为在主机上部署的网络级方法,系统不需要更改主机的操作系统,应用程序或硬件。
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公开(公告)号:US08904535B2
公开(公告)日:2014-12-02
申请号:US11961062
申请日:2007-12-20
申请人: Peng Liu , Yoon-Chan Jhi , Lunquan Li
发明人: Peng Liu , Yoon-Chan Jhi , Lunquan Li
CPC分类号: H04L63/145 , H04L63/10 , H04L63/1408 , H04L63/1491
摘要: A proactive worm containment (PWC) solution for enterprises uses a sustained faster-than-normal outgoing connection rate to determine if a host is infected. Two novel white detection techniques are used to reduce false positives, including a vulnerability time window lemma to avoid false initial containment, and a relaxation analysis to uncontain (or unblock) those mistakenly contained (or blocked) hosts, if there are any. The system integrates seamlessly with existing signature-based or filter-based worm scan filtering solutions. Nevertheless, the invention is signature free and does not rely on worm signatures. Nor is it protocol specific, as the approach performs containment consistently over a large range of worm scan rates. It is not sensitive to worm scan rate and, being a network-level approach deployed on a host, the system requires no changes to the host's OS, applications, or hardware.
摘要翻译: 企业的主动式蠕虫病毒(PWC)解决方案使用持续的比正常速度更快的传出连接速率来确定主机是否被感染。 使用两种新颖的白色检测技术来减少误报,包括一个漏洞时间窗口引理,以避免虚假的初始遏制,以及放松分析以解除(或解除阻塞)那些被错误地包含(或阻止)的主机,如果有的话。 该系统与现有的基于签名或基于过滤器的蠕虫扫描过滤解决方案无缝集成。 然而,本发明是免签名的,不依赖于蠕虫特征。 该方法也不具体,因为该方法在大范围的蠕虫扫描速率下始终保持一致。 它对蠕虫扫描速率不敏感,作为在主机上部署的网络级方法,系统不需要更改主机的操作系统,应用程序或硬件。
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公开(公告)号:US20130069435A1
公开(公告)日:2013-03-21
申请号:US13574541
申请日:2011-01-25
申请人: Lunquan Li , Heming Li , Shuqin Zhuang , Feng He , Yilei Gu
发明人: Lunquan Li , Heming Li , Shuqin Zhuang , Feng He , Yilei Gu
IPC分类号: H02J9/04
CPC分类号: H02J9/04 , H02J9/06 , H02M1/4208 , H02M3/158 , Y02B70/126 , Y10T307/625
摘要: A pre-stage boost device, comprising: a selector switch (130); a power factor inductor (140), a common boost circuit (150), a rectifier circuit (160), and a filter circuit (170). The common boost circuit includes: connected in series a first switch (Q1), a second switch (Q2) and a third switch (Q3). The rectifier circuit includes two rectifier diodes (D5, D6). The filter circuit includes connected in series two capacitors (C1, C2). Maximum multiplexing of the main power components under the battery mode and the commercial power mode is achieved by this invention, the cost to performance ratio is also improved.
摘要翻译: 一种前级升压装置,包括:选择器开关(130); 功率因数电感器(140),公共升压电路(150),整流器电路(160)和滤波器电路(170)。 公共升压电路包括:串联连接第一开关(Q1),第二开关(Q2)和第三开关(Q3)。 整流电路包括两个整流二极管(D5,D6)。 滤波器电路包括串联两个电容器(C1,C2)。 通过本发明实现了电池模式下的主要功率部件和商业功率模式的最大复用,性价比也提高了。
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