公开(公告)号：US20110227704A1

公开(公告)日：2011-09-22

申请号：US13118997

申请日：2011-05-31

申请人： Venkata Padmanabhan ,  Lenin Ravindranath Sivalingam ,  Piyush Agrawal

发明人： Venkata Padmanabhan ,  Lenin Ravindranath Sivalingam ,  Piyush Agrawal

IPC分类号： G06K7/01

CPC分类号： H04Q9/00 ,  H04Q2209/47 ,  H04Q2209/845

摘要： An “RFID-Based Inference Platform” provides various techniques for using RFID tags in combination with other enterprise sensors to track users and objects, infer their interactions, and provide these inferences for enabling further applications. Specifically, observations are collected from combinations of RFID tag reads and other enterprise sensors including electronic calendars, user presence identifiers, cardkey access logs, computer logins, etc. Given sufficient observations, the RFID-Based Inference Platform automatically differentiates between tags associated with or affixed to people and tags affixed to objects. The RFID-Based Inference Platform then infers additional information including identities of people, ownership of specific objects, the nature of different “zones” in a workspace (e.g., private office versus conference room). These inferences are then used to enable various applications including object tracking, automated object ownership determinations, automated object cataloging, automated misplaced object alerts, video annotations, automated conference room scheduling, semi-automated object image catalogs, object interaction query systems, etc.

摘要翻译： “基于RFID的推理平台”提供了使用RFID标签与其他企业传感器结合跟踪用户和对象，推断其交互作用并提供这些推论以实现其他应用的各种技术。 具体来说，从RFID标签读取和其他企业传感器的组合（包括电子日历，用户存在标识符，卡密钥访问日志，计算机登录等）收集观察结果。给定足够的观察结果，基于RFID的推理平台自动区分与或相关的标签 贴在物体上的人和标签。 然后，基于RFID的推理平台推出了包括人的身份，特定对象的所有权，工作空间（例如，私人办公室与会议室）中的不同“区域”的性质的附加信息。 然后将这些推论用于启用各种应用程序，包括对象跟踪，自动对象所有权确定，自动对象编目，自动放错对象警报，视频注释，自动会议室调度，半自动对象图像目录，对象交互查询系统等。

公开(公告)号：US20090315678A1

公开(公告)日：2009-12-24

申请号：US12141096

申请日：2008-06-18

申请人： Venkata Padmanabhan ,  Lenin Ravindranath Sivalingam ,  Piyush Agrawal

发明人： Venkata Padmanabhan ,  Lenin Ravindranath Sivalingam ,  Piyush Agrawal

IPC分类号： H04Q5/22

CPC分类号： H04Q9/00 ,  H04Q2209/47 ,  H04Q2209/845

摘要： An “RFID-Based Inference Platform” provides various techniques for using RFID tags in combination with other enterprise sensors to track users and objects, infer their interactions, and provide these inferences for enabling further applications. Specifically, observations are collected from combinations of RFID tag reads and other enterprise sensors including electronic calendars, user presence identifiers, cardkey access logs, computer logins, etc. Given sufficient observations, the RFID-Based Inference Platform automatically differentiates between tags associated with or affixed to people and tags affixed to objects. The RFID-Based Inference Platform then infers additional information including identities of people, ownership of specific objects, the nature of different “zones” in a workspace (e.g., private office versus conference room). These inferences are then used to enable various applications including object tracking, automated object ownership determinations, automated object cataloging, automated misplaced object alerts, video annotations, automated conference room scheduling, semi-automated object image catalogs, object interaction query systems, etc.

摘要翻译： “基于RFID的推理平台”提供了使用RFID标签与其他企业传感器结合跟踪用户和对象，推断其交互作用并提供这些推论以实现其他应用的各种技术。 具体来说，从RFID标签读取和其他企业传感器的组合（包括电子日历，用户存在标识符，卡密钥访问日志，计算机登录等）收集观察结果。给定足够的观察结果，基于RFID的推理平台自动区分与或相关的标签 贴在物体上的人和标签。 然后，基于RFID的推理平台推出了包括人的身份，特定对象的所有权，工作空间（例如，私人办公室与会议室）中的不同“区域”的性质的附加信息。 然后将这些推论用于启用各种应用程序，包括对象跟踪，自动对象所有权确定，自动对象编目，自动放错对象警报，视频注释，自动会议室调度，半自动对象图像目录，对象交互查询系统等。

公开(公告)号：US07982609B2

公开(公告)日：2011-07-19

申请号：US12141096

申请日：2008-06-18

申请人： Venkata Padmanabhan ,  Lenin Ravindranath Sivalingam ,  Piyush Agrawal

发明人： Venkata Padmanabhan ,  Lenin Ravindranath Sivalingam ,  Piyush Agrawal

IPC分类号： G08B13/14

CPC分类号： H04Q9/00 ,  H04Q2209/47 ,  H04Q2209/845

摘要： An “RFID-Based Inference Platform” provides various techniques for using RFID tags in combination with other enterprise sensors to track users and objects, infer their interactions, and provide these inferences for enabling further applications. Specifically, observations are collected from combinations of RFID tag reads and other enterprise sensors including electronic calendars, user presence identifiers, cardkey access logs, computer logins, etc. Given sufficient observations, the RFID-Based Inference Platform automatically differentiates between tags associated with or affixed to people and tags affixed to objects. The RFID-Based Inference Platform then infers additional information including identities of people, ownership of specific objects, the nature of different “zones” in a workspace (e.g., private office versus conference room). These inferences are then used to enable various applications including object tracking, automated object ownership determinations, automated object cataloging, automated misplaced object alerts, video annotations, automated conference room scheduling, semi-automated object image catalogs, object interaction query systems, etc.

摘要翻译： “基于RFID的推理平台”提供了使用RFID标签与其他企业传感器结合跟踪用户和对象，推断其交互作用并提供这些推论以实现其他应用的各种技术。 具体来说，从RFID标签读取和其他企业传感器的组合（包括电子日历，用户存在标识符，卡密钥访问日志，计算机登录等）收集观察结果。给定足够的观察结果，基于RFID的推理平台自动区分与或相关的标签 贴在物体上的人和标签。 然后，基于RFID的推理平台推出了包括人的身份，特定对象的所有权，工作空间（例如，私人办公室与会议室）中的不同“区域”的性质的附加信息。 然后将这些推论用于启用各种应用程序，包括对象跟踪，自动对象所有权确定，自动对象编目，自动放错对象警报，视频注释，自动会议室调度，半自动对象图像目录，对象交互查询系统等。

公开(公告)号：US20080037536A1

公开(公告)日：2008-02-14

申请号：US11778490

申请日：2007-07-16

申请人： Venkata Padmanabhan ,  Lakshminarayanan Subramanian

发明人： Venkata Padmanabhan ,  Lakshminarayanan Subramanian

IPC分类号： H04L12/28

CPC分类号： H04L45/04 ,  H04L29/12066 ,  H04L41/12 ,  H04L61/1511 ,  H04L61/609 ,  H04L67/18 ,  H04W4/02

摘要： A system and methodologies are disclosed for determining the geographic location of an Internet host. A first method infers host location based on the DNS names of the host of interest or other nearby network nodes. A second method employs network delay measurements from geographically distributed locations to triangulate the coordinates of the host. A third method couples partial host-to-location mapping information obtained from one or more sources with BGP or other routing information in order to infer location of the host of interest.

摘要翻译： 公开了用于确定因特网主机的地理位置的系统和方法。 第一种方法根据感兴趣的主机的DNS名称或其他附近的网络节点来推断主机位置。 第二种方法采用来自地理分布位置的网络延迟测量来对主机的坐标进行三角测量。 第三种方法将从一个或多个源获得的部分主机到位置映射信息与BGP或其他路由信息相耦合，以便推断感兴趣的主机的位置。

公开(公告)号：US20060240835A1

公开(公告)日：2006-10-26

申请号：US11474666

申请日：2006-06-26

申请人： Kamal Jain ,  Jitendra Padhye ,  Venkata Padmanabhan ,  Lili Qiu

发明人： Kamal Jain ,  Jitendra Padhye ,  Venkata Padmanabhan ,  Lili Qiu

IPC分类号： H04Q7/20

CPC分类号： H04W16/14

摘要： Disclosed is a general model and method for computing performance bounds in multi-hop wireless networks. Rather than focusing on computing asymptotic performance bounds under assumptions of homogeneity or randomness in the network topology and/or workload, the present invention accommodates any given network, technology, interference model, routing paradigm, and workload. Using a conflict graph to formally characterize the impact of wireless interference on the performance of multi-hop wireless networks, methods for computing upper and lower bounds on the capacity of a given wireless network are detailed. Besides computing network capacity, the model and method disclosed can also enable or benefit other applications including maximizing fairness and minimizing maximum link utilization.

摘要翻译： 公开了一种用于计算多跳无线网络中的性能界限的通用模型和方法。 本发明不考虑在网络拓扑和/或工作负载中的均匀性或随机性假设下计算渐近性能界限，而是适应任何给定的网络，技术，干扰模型，路由范例和工作负载。 使用冲突图形式表征无线干扰对多跳无线网络性能的影响，详细描述了计算给定无线网络容量的上限和下限的方法。 除了计算网络容量之外，所公开的模型和方法还可以实现或受益于其他应用，包括最大化公平性并最小化最大链路利用率。

公开(公告)号：US20050185578A1

公开(公告)日：2005-08-25

申请号：US10787612

申请日：2004-02-25

申请人： Venkata Padmanabhan ,  Jiahe Wang ,  Philip Chou

发明人： Venkata Padmanabhan ,  Jiahe Wang ,  Philip Chou

IPC分类号： G01R31/08 ,  H04L12/18 ,  H04L12/56

CPC分类号： H04L12/185 ,  H04L41/5009 ,  H04L41/5035 ,  H04L43/0829 ,  H04L47/10 ,  H04L47/11 ,  H04L47/12 ,  H04L67/104 ,  H04L67/1089

摘要： A technique is disclosed that can efficiently control congestion, while supporting heterogeneity for streaming data among multiple computers in a network. A plurality of nodes is divided into a plurality of distribution trees within a computer network, wherein the data is divided into a plurality of prioritized layers. When a node experiences packet loss, the location of the congestion is inferred. If the congestion is at or near the outgoing link, outgoing traffic is shed to alleviate the congestion by shedding child node(s) receiving descriptions in the least important layer of data that the child node(s) are receiving. Similarly, if the congestion is at or near the incoming link, incoming traffic is shed by shedding parent nodes that are sending descriptions in the least important layer of data that the node is receiving. Nodes with available bandwidth are further instructed to subscribe to additional descriptions.

摘要翻译： 公开了一种可以有效地控制拥塞的技术，同时支持网络中的多个计算机之间的流数据的异构性。 多个节点被划分成计算机网络内的多个分配树，其中数据被分成多个优先化层。 当节点遇到数据包丢失时，推断出拥塞的位置。 如果拥塞处于或接近输出链路，则流出流量被减轻，以减轻子节点在子节点正在接收的最不重要的数据层中接收描述的缓冲来减轻拥塞。 类似地，如果拥塞处于或接近传入链路，则通过在发送节点正在接收的最不重要的数据层中发送描述的父节点脱离传入流量。 进一步指示具有可用带宽的节点订阅附加描述。

公开(公告)号：US20070133385A1

公开(公告)日：2007-06-14

申请号：US11304843

申请日：2005-12-14

申请人： Hank Hoek ,  Venkata Padmanabhan

发明人： Hank Hoek ,  Venkata Padmanabhan

IPC分类号： H04J3/10

CPC分类号： H04L29/12783 ,  G06F16/9537 ,  H04L61/35

摘要： Class information is leveraged to facilitate in grouping identifications (ID) to allow ID range-to-class mapping information to be determined. ID range-to-class inference techniques are employed to determine similarities of IDs associated with a class, creating ID range-to-class mapping. Identifications can include Internet Protocol (IP) addressing, telephone numbers, and other sequenceable forms of identification for users and/or computing devices. Classes can include user location, age, income, gender, language, and/or other classifications. Thus, IP address ranges, for example, can be mapped to user geographic locations using an inference technique, specifically a “GeoInference” technique. The inference techniques quickly detect IP proxy usage and identify and eliminate outliers within a given IP range, substantially increasing the accuracy of user location data. Complementary data sources can be employed to facilitate in increasing data accuracy.

摘要翻译： 利用类信息来促进分组标识（ID），以允许确定ID范围到类映射信息。 采用ID范围到类推理技术来确定与类相关联的ID的相似性，创建ID范围到类映射。 标识可以包括用于用户和/或计算设备的因特网协议（IP）寻址，电话号码和其他可序列的标识形式。 课程可以包括用户位置，年龄，收入，性别，语言和/或其他分类。 因此，例如，IP地址范围可以使用推理技术，特别是“GeoInference”技术映射到用户地理位置。 推理技术快速检测IP代理使用情况，识别和消除给定IP范围内的异常值，大大增加用户位置数据的准确性。 可以采用互补数据源来促进数据准确性的提高。

公开(公告)号：US20060190598A1

公开(公告)日：2006-08-24

申请号：US11407606

申请日：2006-04-20

申请人： Luis Cabrera ,  Venkata Padmanabhan

发明人： Luis Cabrera ,  Venkata Padmanabhan

IPC分类号： G06F15/173

CPC分类号： H04L67/42 ,  H04L29/06

摘要： A method of reducing bandwidth limitations to send events to a set of interested clients within a pre-defined time period as quickly and fairly as possible. The clients can be re-distributed among the servers in a network such that the delay due to server overloading is minimized by moving clients from an overloaded server to a server with available bandwidth. In addition, the latency of client-server communications can be incorporated into an estimation of download times, and the servers can then initiate delivery to respective clients based on those download times. By staggering the send times to account for heterogeneous latencies, more clients can receive the event at the same time, and a fairness of distribution can be achieved.

公开(公告)号：US20050157706A1

公开(公告)日：2005-07-21

申请号：US11064677

申请日：2005-02-24

申请人： Yi-Min Wang ,  Oixiang Sun ,  Daniel Simon ,  Wilfred Russell ,  Lili Qiu ,  Venkata Padmanabhan

发明人： Yi-Min Wang ,  Oixiang Sun ,  Daniel Simon ,  Wilfred Russell ,  Lili Qiu ,  Venkata Padmanabhan

IPC分类号： H04L29/06 ,  H04L12/66

CPC分类号： H04L63/0407 ,  G06F2221/2107 ,  G06F2221/2119 ,  G06Q20/10 ,  G06Q20/102 ,  G06Q20/1085 ,  G06Q20/40 ,  H04L63/1408

摘要： A system and method is provided for evaluating the effectiveness of data encryption for hiding the identity of the source of Web traffic. A signature is constructed from encrypted Web traffic for a Web page sent by a target Web site, and the signature is compared with archived traffic signatures obtained by accessing various Web pages of interest in advance. If the signature of the detected encrypted Web traffic matches a stored traffic signature beyond a pre-set statistical threshold, a positive match is found, and the source of the traffic is identified. Countermeasures for reducing the reliability of source identification based on traffic signature matching are provided.

摘要翻译： 提供了一种系统和方法，用于评估数据加密的有效性，以隐藏Web流量来源的身份。 由目标网站发送的网页的加密Web流量构建签名，并将签名与通过预先访问各种感兴趣的网页获得的归档流量签名进行比较。 如果检测到的加密Web流量的签名与存储的流量签名匹配超过预定的统计阈值，则找到正匹配，并且识别流量的来源。 提供了基于流量特征匹配降低源识别可靠性的对策。

公开(公告)号：US20070239876A1

公开(公告)日：2007-10-11

申请号：US11400103

申请日：2006-04-07

申请人： Ranveer Chandra ,  Venkata Padmanabhan ,  Ming Zhang

发明人： Ranveer Chandra ,  Venkata Padmanabhan ,  Ming Zhang

IPC分类号： G06F15/177 ,  G06F15/16

CPC分类号： H04W24/04 ,  H04L61/2015 ,  H04W84/12

摘要： Communication software to aid portable computers monitor, and correct problems accessing a network through a wireless access point. The software controls the exchange of information with other portable computers in the vicinity of the wireless access point. The information exchanged may be used to diagnose problems at the wireless layer, the network layer, the transport layer or the application layer. The information exchanged may provide information about the configuration of computers that successfully or unsuccessfully communicate through the wireless access point. A portable computer receiving this configuration information may compare it to similar information about its own configuration to diagnose problems. Such software may be of particular benefit for portable computers experiencing difficulty connecting to a network at a wireless hot spot.

摘要翻译： 用于辅助便携式计算机的通信软件监视并纠正通过无线接入点访问网络的问题。 软件控制与无线接入点附近的其他便携式计算机的信息交换。 所交换的信息可以用于诊断无线层，网络层，传输层或应用层的问题。 所交换的信息可以提供关于通过无线接入点成功或不成功通信的计算机的配置的信息。 接收该配置信息的便携式计算机可将其与关于其自身配置的类似信息进行比较以诊断问题。 这样的软件对于在无线热点处连接到网络的难易的便携式计算机可能是特别有益的。