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21. 发明申请

US20130158974A1 MODELING AND PREDICTING CONTROL SYSTEM BEHAVIOR THROUGH FAST-FORWARDING 审中-公开
标题翻译：通过快速前进的建模和预测控制系统行为
公开(公告)号：US20130158974A1
公开(公告)日：2013-06-20
申请号：US13325077
申请日：2011-12-14
申请人： Jason Croft , Ratul Mahajan , Madan Musuvathi
发明人： Jason Croft , Ratul Mahajan , Madan Musuvathi
IPC分类号： G06G7/62
CPC分类号： G05B17/02
摘要： Methods and systems for modeling and predicting control system behavior through fast-forwarding are provided herein. The method includes obtaining sets of equivalent inputs, time zones, and a user-defined stop time. The method also includes taking a primary checkpoint of a main instance of a control system in response to a user input. The method includes fast-forwarding the control system by generating a secondary instance from the main instance at the primary checkpoint and subjecting the secondary instance to each combination of an input from each of the sets of equivalent inputs in each time zone. The method includes taking a secondary checkpoint from the primary checkpoint for each combination. For each secondary checkpoint, the method includes fast-forwarding the control system by generating a tertiary instance from the secondary instance and subjecting the tertiary instance to each combination as long as a time does not exceed the user-defined stop time.
摘要翻译：本文提供了通过快速转发建模和预测控制系统行为的方法和系统。该方法包括获得等效输入集，时区和用户定义的停止时间。该方法还包括响应于用户输入取得控制系统的主要实例的主要检查点。该方法包括通过在主检查点从主实例生成辅助实例来快速转发控制系统，并且对次级实例进行每个时区中每组等效输入的输入的每个组合。该方法包括从每个组合的主检查点获取辅助检查点。对于每个二级检查点，该方法包括通过从次级实例生成三级实例并且只要时间不超过用户定义的停止时间，就对三级实例进行每个组合，来对控制系统进行快速转发。

22. 发明申请

US20090088089A1 CONTROL CHANNEL NEGOTIATED INTERMITTENT WIRELESS COMMUNICATION 有权
标题翻译：控制通道协调间接无线通信
公开(公告)号：US20090088089A1
公开(公告)日：2009-04-02
申请号：US11866092
申请日：2007-10-02
申请人： Ranveer Chandra , Christos Gkantsidis , Ratul Mahajan , Antony Ian Taylor Rowstron , Alastair Wolman , Yongqiang Xiong
发明人： Ranveer Chandra , Christos Gkantsidis , Ratul Mahajan , Antony Ian Taylor Rowstron , Alastair Wolman , Yongqiang Xiong
IPC分类号： H04B7/02
CPC分类号： H04B7/02 , H04B7/04 , H04B7/12 , H04W28/18 , H04W64/006
摘要： A dual mode communication device utilizes a control channel to exploit diversity, history, and context in advance of establishing a broadband data exchange session on a broadband but shorter range wireless data channel, maximizing productive use of such a session. Appropriate diversity for the negotiated session further enhance data transfer, including path diversity, radio technology diversity (e.g., WiMax, Wi-Fi, ultra wideband, Bluetooth), antenna diversity (e.g., MIMO), modulation diversity (e.g., rate selection for 802.11, or symbol length selection to combat multi-path fading), and frequency diversity (e.g., 2.4 GHz versus 5 GHz). Historical information about channel characteristics optimize the selection of channel parameters with respect to the diversity choices. In addition, context information such as location and speed can be used to categorize the historical information that is collected to further optimize channel parameters.
摘要翻译：提前在宽带但较短范围的无线数据信道上建立宽带数据交换会话，双模式通信设备利用控制信道来利用分集，历史和上下文，从而最大化这种会话的生产性使用。协商会话的适当分集进一步增强数据传输，包括路径分集，无线电技术分集（例如WiMax，Wi-Fi，超宽带，蓝牙），天线分集（例如，MIMO），调制分集（例如，802.11的速率选择，或符号长度选择以对抗多径衰落）和频率分集（例如，2.4GHz与5GHz）。关于信道特征的历史信息优化了对于多样性选择的信道参数的选择。此外，可以使用位置和速度等上下文信息对收集的历史信息进行分类，以进一步优化信道参数。

23. 发明授权

US09122995B2 Classification of stream-based data using machine learning 有权
标题翻译：使用机器学习分析基于流的数据
公开(公告)号：US09122995B2
公开(公告)日：2015-09-01
申请号：US13047804
申请日：2011-03-15
申请人： Bongshin Lee , Ashish Kapoor , Ratul Mahajan , Blaine S. Christian , Saleema Amershi
发明人： Bongshin Lee , Ashish Kapoor , Ratul Mahajan , Blaine S. Christian , Saleema Amershi
IPC分类号： G06N99/00
CPC分类号： G06N99/005
摘要： The described implementations relate to data classification. One implementation includes identifying one or more likely classifications for an incoming data item using an algorithm. The implementation can also include providing the one or more identified classifications to a user. A selection of an individual identified classification for the incoming data item can be received from the user. The algorithm can be refined to reflect the selection by the user.
摘要翻译：所描述的实现涉及数据分类。一个实现包括使用算法识别输入数据项的一个或多个可能的分类。该实现还可以包括向用户提供一个或多个所识别的分类。可以从用户接收对输入数据项目的单独识别的分类的选择。该算法可以被细化以反映用户的选择。

24. 发明授权

US09083560B2 Interactive visualization to enhance automated fault diagnosis in networks 有权
标题翻译：互动可视化，以增强网络中的自动化故障诊断
公开(公告)号：US09083560B2
公开(公告)日：2015-07-14
申请号：US12752317
申请日：2010-04-01
申请人： Bongshin Lee , Srikanth Kandula , Ratul Mahajan , Zhicheng Liu
发明人： Bongshin Lee , Srikanth Kandula , Ratul Mahajan , Zhicheng Liu
IPC分类号： G06F3/01 , G06F15/177 , H04L12/64 , G06Q10/10
CPC分类号： H04L12/6418 , G06Q10/10
摘要： Described is a visual analytics system for network diagnostics. The visual analytics system obtains network diagnostic-related information from a diagnostic system. The visual analytics system includes an interactive user interface that displays the representations of network components, including network machines and, zero or more links between those components, (e.g., as appropriate based upon selection or dynamic conditions). The user interface includes a main network view that displays representations of network components, a diagnostics view that displays suggested diagnosis results obtained from the diagnostic system, and a performance counter view that displays performance counter data. User interaction with one of the views correspondingly changes the displays in the other views. The system allows effective exploration of multiple levels of detail, e.g., variable, component, edge level and network levels, for example, via flexible navigation across these levels from the top, the bottom, or anywhere in the middle, while retaining context.
摘要翻译：描述了一种用于网络诊断的视觉分析系统。视觉分析系统从诊断系统获取网络诊断相关信息。视觉分析系统包括交互式用户界面，其显示包括网络机器的网络组件的表示，以及这些组件之间的零个或多个链接（例如，基于选择或动态条件适当地）。用户界面包括显示网络组件的表示的主网络视图，显示从诊断系统获得的建议诊断结果的诊断视图，以及显示性能计数器数据的性能计数器视图。与其中一个视图的用户交互相应地更改其他视图中的显示。该系统允许例如通过从顶部，底部或中间任何地方的这些级别的柔性导航同时保留上下文来有效地探索多个细节级别，例如可变，组件，边缘级别和网络级别。

25. 发明授权

US08699424B2 Adapting channel width for improving the performance of wireless networks 有权
标题翻译：适应通道宽度，提高无线网络的性能
公开(公告)号：US08699424B2
公开(公告)日：2014-04-15
申请号：US12163187
申请日：2008-06-27
申请人： Ranveer Chandra , Ratul Mahajan , Thomas Moscibroda , Paramvir Bahl , Ramya Raghavendra
发明人： Ranveer Chandra , Ratul Mahajan , Thomas Moscibroda , Paramvir Bahl , Ramya Raghavendra
IPC分类号： H04W4/00 , H04J3/06 , H04J3/16
CPC分类号： H04W28/18 , H04W24/02 , H04W28/20
摘要： The subject invention relates to a system and/or methodology that provide improved wireless networking performance by dynamically adapting the channel width. A dynamic adaptation component adjust the channel width based on at least one characteristic of a wireless network, the characteristics can include but are not limited to range, power consumption, throughput, signal to noise ratio (SNR), resilience to delay spread, data rate, and capacity. Additionally, an optimization component can determine an optimum channel width.
摘要翻译：本发明涉及通过动态调整信道宽度来提供改进的无线网络性能的系统和/或方法。动态适配组件基于无线网络的至少一个特性来调整信道宽度，特征可以包括但不限于范围，功耗，吞吐量，信噪比（SNR），对延迟扩展的恢复能力，数据速率和容量。另外，优化组件可以确定最佳通道宽度。

26. 发明授权

US08184656B2 Control channel negotiated intermittent wireless communication 有权
标题翻译：控制通道协商间歇性无线通信
公开(公告)号：US08184656B2
公开(公告)日：2012-05-22
申请号：US11866092
申请日：2007-10-02
申请人： Ranveer Chandra , Christos Gkantsidis , Ratul Mahajan , Antony Ian Taylor Rowstron , Alastair Wolman , Yongqiang Xiong
发明人： Ranveer Chandra , Christos Gkantsidis , Ratul Mahajan , Antony Ian Taylor Rowstron , Alastair Wolman , Yongqiang Xiong
IPC分类号： H04L12/413
CPC分类号： H04B7/02 , H04B7/04 , H04B7/12 , H04W28/18 , H04W64/006
摘要： A dual mode communication device utilizes a control channel to exploit diversity, history, and context in advance of establishing a broadband data exchange session on a broadband but shorter range wireless data channel, maximizing productive use of such a session. Appropriate diversity for the negotiated session further enhance data transfer, including path diversity, radio technology diversity (e.g., WiMax, Wi-Fi, ultra wideband, Bluetooth), antenna diversity (e.g., MIMO), modulation diversity (e.g., rate selection for 802.11, or symbol length selection to combat multi-path fading), and frequency diversity (e.g., 2.4 GHz versus 5 GHz). Historical information about channel characteristics optimize the selection of channel parameters with respect to the diversity choices. In addition, context information such as location and speed can be used to categorize the historical information that is collected to further optimize channel parameters.
摘要翻译：提前在宽带但较短范围的无线数据信道上建立宽带数据交换会话，双模式通信设备利用控制信道来利用分集，历史和上下文，从而最大化这种会话的生产性使用。协商会话的适当分集进一步增强数据传输，包括路径分集，无线电技术分集（例如WiMax，Wi-Fi，超宽带，蓝牙），天线分集（例如，MIMO），调制分集（例如，802.11的速率选择，或符号长度选择以对抗多径衰落）和频率分集（例如，2.4GHz与5GHz）。关于信道特征的历史信息优化了对于多样性选择的信道参数的选择。此外，可以使用位置和速度等上下文信息对收集的历史信息进行分类，以进一步优化信道参数。

27. 发明授权

US08098584B2 Optimization of traffic routing for data center services 有权
标题翻译：数据中心业务流量路由优化
公开(公告)号：US08098584B2
公开(公告)日：2012-01-17
申请号：US12537479
申请日：2009-08-07
申请人： Ming Zhang , Albert Greenberg , Ratul Mahajan , Blaine S. Christian , Zheng Zhang
发明人： Ming Zhang , Albert Greenberg , Ratul Mahajan , Blaine S. Christian , Zheng Zhang
IPC分类号： G01R31/08 , H04L12/28
CPC分类号： H04L45/70 , H04L43/0829 , H04L43/0841 , H04L43/0882 , H04L43/12 , H04L45/22
摘要： Techniques and systems for providing optimization of traffic routing for data centers are disclosed herein. In some embodiments, a method may include identifying a plurality of available source sites and paths or routes between an online service provider (OSP) and a destination prefix. A traffic manager may measure a cost for each of the plurality of available paths. In some instances, the traffic manager may also measure a performance value for each of the available paths. The traffic manager may then select one of the available source sites and paths as a preferred source site and path that has a minimized cost for an instance of the performance value when compared to other paths of the plurality of available source sites and paths. In further embodiments, the traffic manager may rewrite a routing table and DNS mapping to implement the preferred source site and path as the default source site and path between the OSP and the destination prefix.
摘要翻译：本文公开了用于为数据中心提供业务路由优化的技术和系统。在一些实施例中，方法可以包括识别在线服务提供商（OSP）和目的地前缀之间的多个可用源站点和路径或路由。流量管理器可以测量多个可用路径中的每一个的成本。在某些情况下，流量管理器还可以测量每个可用路径的性能值。然后，当与多个可用源站点和路径中的其他路径相比较时，流量管理器可以选择可用源站点和路径中的一个作为优选源站点和路径，其具有性能值的实例的最小化成本。在另外的实施例中，业务管理器可以重写路由表和DNS映射，以实现优选源站点和路径作为OSP和目的地前缀之间的默认源站点和路径。

28. 发明申请

US20110246897A1 INTERACTIVE VISUALIZATION TO ENHANCE AUTOMATED FAULT DIAGNOSIS IN NETWORKS 有权
标题翻译：互动可视化，以增强网络中的自动故障诊断
公开(公告)号：US20110246897A1
公开(公告)日：2011-10-06
申请号：US12752317
申请日：2010-04-01
申请人： Bongshin Lee , Srikanth Kandula , Ratul Mahajan , Zhicheng Liu
发明人： Bongshin Lee , Srikanth Kandula , Ratul Mahajan , Zhicheng Liu
IPC分类号： G06F3/01 , G06F15/177
CPC分类号： H04L12/6418 , G06Q10/10
摘要： Described is a visual analytics system for network diagnostics. The visual analytics system obtains network diagnostic-related information from a diagnostic system. The visual analytics system includes an interactive user interface that displays the representations of network components, including network machines and, zero or more links between those components, (e.g., as appropriate based upon selection or dynamic conditions). The user interface includes a main network view that displays representations of network components, a diagnostics view that displays suggested diagnosis results obtained from the diagnostic system, and a performance counter view that displays performance counter data. User interaction with one of the views correspondingly changes the displays in the other views. The system allows effective exploration of multiple levels of detail, e.g., variable, component, edge level and network levels, for example, via flexible navigation across these levels from the top, the bottom, or anywhere in the middle, while retaining context.
摘要翻译：描述了一种用于网络诊断的视觉分析系统。视觉分析系统从诊断系统获取网络诊断相关信息。视觉分析系统包括交互式用户界面，其显示包括网络机器的网络组件的表示，以及这些组件之间的零个或多个链接（例如，基于选择或动态条件适当地）。用户界面包括显示网络组件的表示的主网络视图，显示从诊断系统获得的建议诊断结果的诊断视图，以及显示性能计数器数据的性能计数器视图。与其中一个视图的用户交互相应地更改其他视图中的显示。该系统允许例如通过从顶部，底部或中间任何地方的这些级别的柔性导航同时保留上下文来有效地探索多个细节级别，例如可变，组件，边缘级别和网络级别。

29. 发明授权

US07817547B2 Uncovering the differences in backbone networks 有权
标题翻译：揭示骨干网络的差异
公开(公告)号：US07817547B2
公开(公告)日：2010-10-19
申请号：US11865988
申请日：2007-10-02
申请人： Ming Zhang , Ratul Mahajan
发明人： Ming Zhang , Ratul Mahajan
IPC分类号： G06F11/00 , G06F15/173 , H04L12/26
CPC分类号： H04L41/5009 , H04L41/5038 , H04L41/5077 , H04L43/12
摘要： The claimed subject matter provides systems and/or methods that uncovers detailed differences in the performance of different Internet Service Provider ISP) networks. The system can include components, devices, and/or processes that utilize a list of target Internet Service Provider (ISP) networks to create a list of Internet Protocol (IP) addresses to interrogate, distribute the list of addresses to measurement nodes and obtains in return probing results from the measurement nodes, the probing results employed thereafter to provide comparative performance metrics associated with the target Internet Service Provider (ISP) networks.
摘要翻译：所要求保护的主题提供揭示不同互联网服务提供商ISP）网络的性能的详细差异的系统和/或方法。系统可以包括利用目标互联网服务提供商（ISP）网络列表的组件，设备和/或过程来创建互联网协议（IP）地址列表以进行询问，将地址列表分发到测量节点并获得从测量节点返回探测结果，此后使用的探测结果提供与目标因特网服务提供商（ISP）网络相关联的比较性能度量。

30. 发明申请

US20100020774A1 INTERACTIVE WiFi CONNECTIVITY FOR MOVING VEHICLES 有权
标题翻译：交互式WiFi连接运动车辆
公开(公告)号：US20100020774A1
公开(公告)日：2010-01-28
申请号：US12178410
申请日：2008-07-23
申请人： Ratul Mahajan , Aruna Balasubramanian
发明人： Ratul Mahajan , Aruna Balasubramanian
IPC分类号： H04W4/00
CPC分类号： H04W40/02 , H04W84/005
摘要： Systems and methods are provided to enable high-performance Internet access on board moving vehicles using WiFi data communication protocols. In an illustrative implementation, an exemplary wireless data communications environment comprises a ViFi module, an instruction set comprising at least one instruction set to process data for wireless communication between a cooperating component onboard a moving vehicle and other cooperating wireless components, and one or more wide-area wireless communications links. In an illustrative operation, the ViFi module can perform one or more wireless communications techniques to exploit macro-diversity and opportunistic receptions by cooperating WiFi base stations to minimize disruptions for mobile clients. The exemplary ViFi module can communicate data to and from one or more cooperating WiFI base stations such that the one or more base stations can operatively opportunistically overhear a packet, and can probabilistically relay the packet to the intended next hop.
摘要翻译：提供了系统和方法，以使得能够使用WiFi数据通信协议在移动车辆上实现高性能的因特网接入。在说明性实现中，示例性无线数据通信环境包括ViFi模块，包括至少一个指令集的指令集，用于处理移动车辆上的协作部件与其他协作无线部件之间的无线通信的数据，以及一个或多个宽 - 无线通信链路。在说明性操作中，ViFi模块可以执行一个或多个无线通信技术，以通过协作的WiFi基站来利用宏分集和机会接收，以最小化移动客户端的中断。示例性的ViFi模块可以向一个或多个合作的WiFI基站传送数据，或者从一个或多个合作的WiFI基站传送数据，使得一个或多个基站可以有选择地机会地窃听分组，并且可以概率地将分组中继到预期的下一跳。

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