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11. 发明授权

US08416937B2 System and method for changing conference moderators during a conference call 有权
标题翻译：在电话会议期间更改会议主持人的系统和方法
公开(公告)号：US08416937B2
公开(公告)日：2013-04-09
申请号：US12978742
申请日：2010-12-27
申请人： Jon L. Bentley , Anjur S. Krishnakumar , Parameshwaran Krishnan , Navjot Singh , Shalini Yajnik
发明人： Jon L. Bentley , Anjur S. Krishnakumar , Parameshwaran Krishnan , Navjot Singh , Shalini Yajnik
IPC分类号： H04M3/42
CPC分类号： H04N7/15 , H04L12/1822 , H04M3/563 , H04M2203/5009 , H04M2203/5027
摘要： Disclosed herein are systems, methods, and non-transitory computer-readable storage media for changing moderators during a e-conference. To change moderators during an e-conference, a system identifies a departure of the original moderator from the e-conference. A moderator can indicate his intention to leave an e-conference through the conferencing system. A participant to replace the original moderator is identified and subsequently promoted to replacement moderator while maintaining the e-conference. Additionally, changing moderators during an e-conference is accomplished by creating a new conference bridge and transferring each participant to the new conference bridge. This method allows for a seamless transfer between moderators during an e-conference without the inconvenience of reconnecting.
摘要翻译：本文公开了用于在电子会议期间改变主持人的系统，方法和非暂时的计算机可读存储介质。要在电子会议期间更改主持人，系统会确定原始主持人离开电子会议。主持人可以表明他打算通过会议系统离开电子会议。在维护电子会议的同时，确定替换原主持人的参与者，随后晋升为替换主持人。此外，在电子会议期间更改主持人是通过创建一个新的会议桥并将每个参与者转移到新的会议桥来实现的。这种方法允许在电子会议期间主持人之间的无缝转移，而不会重新连接的不便。

12. 发明授权

US08312239B2 Cache management for increasing performance of high-availability multi-core systems 有权
标题翻译：缓存管理，以提高高可用性多核系统的性能
公开(公告)号：US08312239B2
公开(公告)日：2012-11-13
申请号：US12570990
申请日：2009-09-30
申请人： Jon Louis Bentley , Frank John Boyle, III , Anjur Sundaresan Krishnakumar , Parameshwaran Krishnan , John H. Meiners , Navjot Singh , Shalini Yajnik
发明人： Jon Louis Bentley , Frank John Boyle, III , Anjur Sundaresan Krishnakumar , Parameshwaran Krishnan , John H. Meiners , Navjot Singh , Shalini Yajnik
IPC分类号： G06F12/00
CPC分类号： G06F12/0815 , G06F11/1658 , G06F11/2038 , G06F11/2043 , G06F11/2097
摘要： An apparatus and method for improving performance in high-availability systems are disclosed. In accordance with the illustrative embodiment, pages of memory of a primary system that are to be shadowed are initially copied to a backup system's memory, as well as to a cache in the primary system. A duplication manager process maintains the cache in an intelligent manner that significantly reduces the overhead required to keep the backup system in sync with the primary system, as well as the cache size needed to achieve a given level of performance. Advantageously, the duplication manager is executed on a different processor core than the application process executing transactions, further improving performance.
摘要翻译：公开了一种用于提高高可用性系统性能的装置和方法。根据说明性实施例，要被镜像的主系统的存储器页面最初被复制到备份系统的存储器以及主系统中的高速缓存。复制管理器进程以智能的方式维护高速缓存，这显着地减少了保持备份系统与主系统同步所需的开销以及实现给定级别的性能所需的高速缓存大小。有利地，复制管理器在与执行事务的应用进程不同的处理器核上执行，进一步提高性能。

13. 发明申请

US20090274144A1 Multi-Node and Multi-Call State Machine Profiling for Detecting SPIT 有权
标题翻译：用于检测SPIT的多节点和多呼叫状态机分析
公开(公告)号：US20090274144A1
公开(公告)日：2009-11-05
申请号：US12115199
申请日：2008-05-05
申请人： Sachin Garg , Navjot Singh , Akshay Adhikari , Yu-Sung Wu
发明人： Sachin Garg , Navjot Singh , Akshay Adhikari , Yu-Sung Wu
IPC分类号： H04L12/66
CPC分类号： H04L65/1079 , G06F21/51 , G06F21/56 , H04L63/1408 , H04L63/1416 , H04L63/1425 , H04L65/1006 , H04M7/006 , H04M7/0078
摘要： An apparatus and method for detecting potentially-improper call behavior (e.g., SPIT, etc.) are disclosed. The illustrative embodiment of the present invention is based on finite-state machines (FSMs) that represent the legal states and state transitions of communications protocols at nodes during Voice over Internet Protocol (VoIP) calls. In accordance with the illustrative embodiment, a library of FSM execution profiles associated with improper call behavior and a set of rules (or rule base) associated with improper FSM behavior over one or more calls are maintained. When the behavior of one or more finite-state machines during one or more calls matches either an execution profile in the library or a rule in the rule base, an alert is generated.
摘要翻译：公开了一种用于检测潜在不适当的呼叫行为（例如，SPIT等）的装置和方法。本发明的说明性实施例基于有限状态机（FSM），其表示在因特网协议语音（VoIP）呼叫期间节点处的通信协议的合法状态和状态转换。根据说明性实施例，维护与不正当呼叫行为相关联的FSM执行简档库和与一个或多个调用上的不正确FSM行为相关联的一组规则（或规则库）。当一个或多个调用期间一个或多个有限状态机的行为与库中的执行概要文件或规则库中的规则匹配时，将生成警报。

14. 发明申请

US20080148384A1 Embedded Firewall at a Telecommunications Endpoint 有权
标题翻译：嵌入式防火墙在电信端点
公开(公告)号：US20080148384A1
公开(公告)日：2008-06-19
申请号：US11610485
申请日：2006-12-13
申请人： Akshay Adhikari , Sachin Garg , Anjur Sundaresan Krishnakumar , Navjot Singh
发明人： Akshay Adhikari , Sachin Garg , Anjur Sundaresan Krishnakumar , Navjot Singh
IPC分类号： G06F17/00
CPC分类号： H04L63/0209 , H04L63/0263
摘要： A method is disclosed that enables the implementation of an embedded firewall at a telecommunications endpoint. In particular, the illustrative embodiment of the present invention addresses the relationship between the application, firewall engine, and packet-classification rules database that are all resident at the endpoint. In the variations of the illustrative embodiment that are described herein, the application: (i) directly communicates with the co-resident firewall engine such as through local message passing, (ii) shares memory with the firewall engine, and (iii) makes socket calls to the operating system that are intercepted by a middleware layer that subsequently modifies the rules database, depending on the socket call. The common thread to these techniques is that the application, firewall engine, and rules database are co-resident at the endpoint, which is advantageous in the implementation of the embedded firewall.
摘要翻译：公开了一种能够在电信端点实现嵌入式防火墙的方法。特别地，本发明的说明性实施例解决了所有驻留在端点的应用，防火墙引擎和分组分类规则数据库之间的关系。在本文描述的说明性实施例的变型中，应用：（i）直接与共驻防火墙引擎通信，例如通过本地消息传递，（ii）与防火墙引擎共享存储器，以及（iii）使套接字调用由中间件层拦截的操作系统，随后根据套接字调用修改规则数据库。这些技术的共同点是应用程序，防火墙引擎和规则数据库共同驻留在端点，这在嵌入式防火墙的实现方面是有利的。

15. 发明申请

US20060288411A1 System and method for mitigating denial of service attacks on communication appliances 审中-公开
标题翻译：减轻通信设备拒绝服务攻击的系统和方法
公开(公告)号：US20060288411A1
公开(公告)日：2006-12-21
申请号：US11157880
申请日：2005-06-21
申请人： Sachin Garg , Navjot Singh
发明人： Sachin Garg , Navjot Singh
IPC分类号： G06F12/14
CPC分类号： H04L63/0236 , H04L63/0254 , H04L63/0263 , H04L63/1458
摘要： A method for preventing or limiting the effects of Denial-of-Service attacks in a communication appliance having a packet-classification rule base which allows all legitimate packets to be forwarded to the communication appliance includes monitoring incoming packets to the communication appliance to determine whether conditions indicating a Denial-of-Service attack are present. If a Denial-of-Service attack is present, a rule base subset of the packet-classification rule base is selected from a plurality of rule base subsets based on a current one of a plurality of operating states of the communication appliance.
摘要翻译：一种防止或限制拒绝服务攻击在具有允许所有合法分组被转发到通信设备的分组分类规则库的通信设备中的效果的方法包括监视到通信设备的进入分组，以确定条件表示存在拒绝服务攻击。如果存在拒绝服务攻击，则基于通信设备的多个操作状态中的当前操作状态，从多个规则库子集中选择分组分类规则库的规则库子集。

16. 发明申请

US20050005152A1 Security vulnerability monitor 审中-公开
标题翻译：安全漏洞监控
公开(公告)号：US20050005152A1
公开(公告)日：2005-01-06
申请号：US10611264
申请日：2003-07-01
申请人： Navjot Singh , Timothy Tsai
发明人： Navjot Singh , Timothy Tsai
IPC分类号： G06F21/00 , H04L9/00
CPC分类号： G06F21/577 , G06F21/554
摘要： A method and apparatus for automatically determining whether a security vulnerability alert is relevant to a device (e.g., personal computer, server, personal digital assistant [PDA], etc.), and automatically retrieving the associated software patches for relevant alerts, are disclosed. The illustrative embodiment intelligently determines whether the software application specified by a security vulnerability alert is resident on the device, whether the version of the software application on the device matches that of the security vulnerability alert, and whether the device's hardware platform and operating system match those of the security vulnerability alert.
摘要翻译：公开了一种用于自动确定安全漏洞警报是否与设备（例如，个人计算机，服务器，个人数字助理[PDA]等）相关的方法和装置，以及自动检索相关警报的相关软件补丁。说明性实施例智能地确定由安全漏洞警报指定的软件应用程序是否驻留在设备上，设备上的软件应用程序的版本是否与安全漏洞警报的版本相匹配，以及设备的硬件平台和操作系统是否匹配的安全漏洞警报。

17. 发明授权

US06713532B2 Solid polymer dispersions and method for their preparation 失效
标题翻译：固体聚合物分散体及其制备方法
公开(公告)号：US06713532B2
公开(公告)日：2004-03-30
申请号：US10377353
申请日：2003-02-28
申请人： Navjot Singh , Joseph Michael Anostario
发明人： Navjot Singh , Joseph Michael Anostario
IPC分类号： C08J300
CPC分类号： C08J3/124 , C08J3/005 , C08J2383/04 , C08L69/00 , C08L71/02 , C08L83/04 , C08L101/00 , C08L83/00 , C08L2666/24 , C08L2666/14 , C08L2666/04
摘要： Solid blends of rubbery polymers and amorphous or crystalline polymers, said blends being free-flowing at temperatures lower than the glass transition temperature or crystalline melting temperature of the amorphous or crystalline polymer, are prepared by intimate mixing procedures. In general, said mixing conditions include high shear conditions sufficient to convert polymer A to dispersed particles coated with polymer B and produce a free-flowing powder blend.
摘要翻译：橡胶状聚合物和无定形或结晶聚合物的固体共混物，所述共混物在低于无定形或结晶聚合物的玻璃化转变温度或结晶熔融温度的温度下自由流动，通过紧密混合程序制备。通常，所述混合条件包括足以将聚合物A转化成涂覆有聚合物B的分散颗粒的高剪切条件，并产生自由流动的粉末混合物。

18. 发明授权

US06451954B1 Copolymer sealant compositions and method for making 有权
标题翻译：共聚物密封剂组合物及其制备方法
公开(公告)号：US06451954B1
公开(公告)日：2002-09-17
申请号：US09626768
申请日：2000-07-27
申请人： Navjot Singh , John Thomas Leman , John M. Whitney , Herman Otto Krabbenhoft
发明人： Navjot Singh , John Thomas Leman , John M. Whitney , Herman Otto Krabbenhoft
IPC分类号： C08G7724
CPC分类号： C08G77/52 , C08L83/10 , C08L2666/44
摘要： Condensation curable poly(fluoroorgano)siloxane-poly(silarylene)siloxane block copolymer compositions having a glass transition temperature not exceeding about −54° C. and excellent solvent resistance have been found useful as sealants. Polyalkoxysilylorgano compounds, such as 1,4-bis[trimethoxysilyl(ethyl)]benzene have been found to be effective as cross-linkers.
摘要翻译：玻璃化转变温度不超过约-54℃，耐溶剂性优异的缩合可固化聚（氟代有机）硅氧烷 - 聚（亚硅烷基）硅氧烷嵌段共聚物组合物已经被用作密封剂。已经发现多烷氧基甲硅烷基有机化合物如1,4-双[三甲氧基甲硅烷基（乙基）]苯作为交联剂是有效的。

19. 发明授权

US06389462B1 Method and apparatus for transparently directing requests for web objects to proxy caches 有权
公开(公告)号：US06389462B1
公开(公告)日：2002-05-14
申请号：US09212980
申请日：1998-12-16
申请人： Ariel Cohen , Sampath Rangarajan , Navjot Singh
发明人： Ariel Cohen , Sampath Rangarajan , Navjot Singh
IPC分类号： G06F1516
CPC分类号： H04L67/2804 , H04L29/06 , H04L29/12009 , H04L61/00 , H04L67/1002 , H04L67/1017 , H04L67/1019 , H04L67/1027 , H04L67/2814 , H04L69/16 , H04L69/161 , H04L69/165 , H04L69/166
摘要： In order to transparently redirect an HTTP connection request that is directed to an origin server (107) to a proxy cache (110-1), a proxy redirector (104) translates the destination address of packets directed to the origin server to the address of the proxy. During a handshaking procedure, a TCP connection is transparently established between the client (110-1) and the proxy cache. When the client transmits a GET request to what it thinks is the origin server, which request specifies the complete address of an object at that origin server that it wants a copy of, the proxy redirector modifies the complete address specified in that GET request before it is sent to the proxy cache. Specifically, the IP address of the origin server found in the destination field in the IP header of the one or more packets from the client containing the GET request is added by the proxy redirector as a prefix to the complete URL in the GET request to form an absolute URL. The proxy cache determines from that absolute URL whether it has the requested object stored in its cache. If it does, it sends the object back to the proxy redirector, which masquerades those packets as coming from the origin server by translating their destination address to the address of the client and their source address to that of the origin server. If the proxy does not have the requested object, a separate TCP connection is established between the proxy and the origin server from where the object is retrieved and then forwarded over the TCP connection between the client and the proxy. In order to account for the additional number of bytes in the GET request, an acknowledgement sequence number in packets returned from the proxy that logically follow receipt of the GET request are decremented by that number by the proxy redirector before being forwarded to the client. Similarly, a sequence number in packets transmitted by the client subsequent to the GET request are incremented by that number before being forwarded by the proxy redirector to the proxy cache.

20. 发明授权

US09736172B2 Signature-free intrusion detection 有权
公开(公告)号：US09736172B2
公开(公告)日：2017-08-15
申请号：US11854437
申请日：2007-09-12
申请人： Sachin Garg , Navjot Singh , Akshay Adhikari , Yu-Sung Wu
发明人： Sachin Garg , Navjot Singh , Akshay Adhikari , Yu-Sung Wu
IPC分类号： H04L29/06
CPC分类号： H04L63/1416 , H04L63/0254
摘要： An apparatus and method are disclosed for detecting intrusions in Voice over Internet Protocol systems, without the use of an attack signature database. In particular, the illustrative embodiment is based on the observation that some VoIP-related protocols (e.g., the Session Initiation Protocol [SIP], etc.) are simple enough to be represented by a finite-state machine (FSM) of compact size. A finite-state machine is maintained for each session/node/protocol combination, and any illegal state or state transition—which might be the result of a malicious attack—is flagged as a potential intrusion.

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