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91. 发明授权

US07428751B2 Secure recovery in a serverless distributed file system 有权
标题翻译：在无服务器分布式文件系统中安全恢复
公开(公告)号：US07428751B2
公开(公告)日：2008-09-23
申请号：US10310440
申请日：2002-12-05
申请人： Miguel Oom Temudo de Castro , Atul Adya , John R. Douceur , William J. Bolosky
发明人： Miguel Oom Temudo de Castro , Atul Adya , John R. Douceur , William J. Bolosky
IPC分类号： H04L29/00 , G06F21/00
CPC分类号： H04L63/0435 , G06F17/30194 , G06F21/40 , G06F21/62 , G06F2221/2101 , H04L9/3236 , H04L9/3247 , H04L9/3255 , H04L63/0442 , H04L63/0823
摘要： Systems and methods for secure file writes after a catastrophic event are allowed over an unauthenticated channel in a serverless distributed file system if an authenticator accompanies the secure file writes. The authenticator can be a power-of-attorney certificate with time limitations, a vector of message authenticated code, or a single message authenticator with secured with a secret shared among members of the serverless distributed file system. The serverless distributed file system includes at least 3f+1 participating computer members, with f representing a number of faults tolerable by the system. The group requires at least one authenticator for file creation and file uploads. Any changes to files stored among the members can be made over an unauthenticated channel if the file changes are secured by the authenticator and the group is able to verify the authenticator.
摘要翻译：如果认证者伴随着安全文件写入，则在无故障分布式文件系统中，通过未经身份验证的通道允许灾难性事件之后的安全文件写入的系统和方法。验证器可以是具有时间限制的授权证书，消息认证代码的向量，或者具有在无服务器分布式文件系统的成员之间共享的秘密的单个消息认证器。无服务器分布式文件系统至少包括3f + 1个参与的计算机成员，其中f表示系统可容忍的许多故障。该组至少需要一个身份验证器用于文件创建和文件上传。如果文件更改由验证者保护，并且该组能够验证验证器，则可以通过未经身份验证的通道对存储在成员中的文件进行任何更改。

92. 发明申请

US20080070563A1 COLLABORATIVELY LOCATING DISCONNECTED CLIENTS AND ROGUE ACCESS POINTS IN A WIRELESS NETWORK 有权
标题翻译：在无线网络中协调定位不连接的客户端和ROGUE接入点
公开(公告)号：US20080070563A1
公开(公告)日：2008-03-20
申请号：US11940466
申请日：2007-11-15
申请人： Atul Adya , Paramvir Bahl , Ranveer Chandra , Lili Qiu
发明人： Atul Adya , Paramvir Bahl , Ranveer Chandra , Lili Qiu
IPC分类号： H04Q7/20
CPC分类号： H04W12/12 , H04W24/08 , H04W64/00
摘要： Methods are described for using collaboration of neighboring wireless devices to enable location of disconnected wireless devices and rogue wireless access points. A central server computes the locations of the neighboring clients and uses those locations to estimate the location of a disconnected client. These techniques may take advantage of the beaconing and probing mechanisms of IEEE 802.11 to ensure that connected clients do not pay unnecessary overheads for detecting disconnected clients. Methods are also described for detecting and locating rogue devices by collaboratively collecting information from neighboring devices and comparing the information to a database.
摘要翻译：描述了使用相邻无线设备的协作来实现断开的无线设备和流氓无线接入点的位置的方法。中央服务器计算相邻客户端的位置，并使用这些位置来估计断开的客户端的位置。这些技术可以利用IEEE 802.11的信标和探测机制来确保连接的客户端不会为检测断开的客户端支付不必要的开销。还描述了通过协同收集来自相邻设备的信息并将该信息与数据库进行比较来检测和定位流氓设备的方法。

93. 发明授权

US07317914B2 Collaboratively locating disconnected clients and rogue access points in a wireless network 有权
标题翻译：在无线网络中协作定位不连接的客户端和流氓接入点
公开(公告)号：US07317914B2
公开(公告)日：2008-01-08
申请号：US11047022
申请日：2005-01-31
申请人： Atul Adya , Paramvir Bahl , Ranveer Chandra , Lili Qiu
发明人： Atul Adya , Paramvir Bahl , Ranveer Chandra , Lili Qiu
IPC分类号： H04M11/00
CPC分类号： H04W12/12 , H04W24/08 , H04W64/00
摘要： Methods are described for using collaboration of neighboring wireless devices to enable location of disconnected wireless devices and rogue wireless access points. A central server computes the locations of the neighboring clients and uses those locations to estimate the location of a disconnected client. These techniques may take advantage of the beaconing and probing mechanisms of IEEE 802.11 to ensure that connected clients do not pay unnecessary overheads for detecting disconnected clients. Methods are also described for detecting and locating rogue devices by collaboratively collecting information from neighboring devices and comparing the information to a database.
摘要翻译：描述了使用相邻无线设备的协作来实现断开的无线设备和流氓无线接入点的位置的方法。中央服务器计算相邻客户端的位置，并使用这些位置来估计断开的客户端的位置。这些技术可以利用IEEE 802.11的信标和探测机制来确保连接的客户端不会为检测断开的客户端支付不必要的开销。还描述了通过协同收集来自相邻设备的信息并将该信息与数据库进行比较来检测和定位流氓设备的方法。

94. 发明授权

US07142855B2 Power efficient channel scheduling in a wireless network 有权
公开(公告)号：US07142855B2
公开(公告)日：2006-11-28
申请号：US11011011
申请日：2004-12-13
申请人： Paramvir Bahl , Atul Adya , Jitendra D. Pahhye
发明人： Paramvir Bahl , Atul Adya , Jitendra D. Pahhye
IPC分类号： H04Q7/20 , H04Q7/24
CPC分类号： H04W52/0216 , H04W52/0219 , H04W52/0241 , H04W52/46 , H04W72/14 , H04W84/12 , H04W88/04 , H04W88/06 , Y02D70/1226 , Y02D70/142
摘要： A method and system for optimizing channel access scheduling for multiple wireless computing devices over a wireless network improves channel access efficiency with respect to a primary channel. An access point, or host computer, includes a host transceiver for receiving control information from the wireless computing devices over a low power channel. Upon receiving the control information, the access point applies a scheduling algorithm to schedule channel access for the wireless computing devices to transmit data over the primary communication channel. The wireless computing devices include a low power radio for receiving scheduling information via the low power channel during idle periods. When the scheduling information is received, the wireless computing device activates its primary channel network interface components to communicate data through the primary channel. When the computing device is idle, the device is configured to power down all of its components with the exception of the circuitry required to power the low power channel. As such, the low power channel is maintained in an active state for receiving scheduling information, such as an access schedule, during both idle and non-idle periods.

95. 发明申请

US20060077946A1 Using a connected wireless computer as a conduit for a disconnected wireless computer 有权
标题翻译：使用连接的无线计算机作为断开连接的无线计算机的导管
公开(公告)号：US20060077946A1
公开(公告)日：2006-04-13
申请号：US11047190
申请日：2005-01-31
申请人： Atul Adya , Paramvir Bahl , Ranveer Chandra
发明人： Atul Adya , Paramvir Bahl , Ranveer Chandra
IPC分类号： H04J3/24
CPC分类号： H04W24/04 , H04W12/12 , H04W24/08 , H04W84/18 , H04W88/06
摘要： Systems and methods are described for using client conduits to enable bootstrapping and fault diagnosis of disconnected wireless clients. Client conduits are used to enable disconnected clients to diagnose their problems with the help of nearby clients. This technique may take advantage of the beaconing and probing mechanisms of IEEE 802.11 to ensure that connected clients do not pay unnecessary overheads for detecting disconnected clients. Methods are also described for detecting rogue devices disguising as disconnected clients.
摘要翻译：描述了使用客户端管道来实现断开连接的无线客户端的自举和故障诊断的系统和方法。客户端管道用于使不连接的客户端能够在附近客户的帮助下诊断他们的问题。这种技术可以利用IEEE 802.11的信标和探测机制来确保连接的客户端不会为检测断开的客户端支付不必要的开销。还描述了用于检测伪装成断开的客户端的流氓设备的方法。

96. 发明申请

US20050101320A1 Power efficient channel scheduling in a wireless network 有权
公开(公告)号：US20050101320A1
公开(公告)日：2005-05-12
申请号：US11011011
申请日：2004-12-13
申请人： Paramvir Bahl , Atul Adya , Jitendra Padhye
发明人： Paramvir Bahl , Atul Adya , Jitendra Padhye
IPC分类号： H04B7/005 , H04H20/00 , H04L12/28 , H04W52/02 , H04W52/46 , H04W74/04 , H04W84/12 , H04W88/04 , H04W88/06 , H04Q7/20 , H04B7/00
CPC分类号： H04W52/0216 , H04W52/0219 , H04W52/0241 , H04W52/46 , H04W72/14 , H04W84/12 , H04W88/04 , H04W88/06 , Y02D70/1226 , Y02D70/142
摘要： A method and system for optimizing channel access scheduling for multiple wireless computing devices over a wireless network improves channel access efficiency with respect to a primary channel. An access point, or host computer, includes a host transceiver for receiving control information from the wireless computing devices over a low power channel. Upon receiving the control information, the access point applies a scheduling algorithm to schedule channel access for the wireless computing devices to transmit data over the primary communication channel. The wireless computing devices include a low power radio for receiving scheduling information via the low power channel during idle periods. When the scheduling information is received, the wireless computing device activates its primary channel network interface components to communicate data through the primary channel. When the computing device is idle, the device is configured to power down all of its components with the exception of the circuitry required to power the low power channel. As such, the low power channel is maintained in an active state for receiving scheduling information, such as an access schedule, during both idle and non-idle periods.

97. 发明授权

US08346973B2 Crisscross cancellation protocol 有权
公开(公告)号：US08346973B2
公开(公告)日：2013-01-01
申请号：US12824084
申请日：2010-06-25
申请人： Atul Adya , Alastair Wolman , John D. Dunagan
发明人： Atul Adya , Alastair Wolman , John D. Dunagan
IPC分类号： G06F15/16
CPC分类号： H04L65/1003 , H04L43/10 , H04L67/14 , H04L67/142
摘要： Technologies, systems, and methods for ordered message delivery that avoid message races or crisscrosses between communicating nodes. For example, if Node A sends message 3 towards Node B and, shortly thereafter, Node B sends message X to Node A, Node A would like to know whether or not message X reflects Node B's state after receiving message 3. If Node B received message 3 prior to sending message X, then proper state may be maintained between the nodes. But if messages 3 and X crisscrossed, or if message 3 was never properly received by Node B, then the state between the nodes may be corrupt. Technologies, systems, and methods are provided to avoid such corruption.

98. 发明授权

US08335762B2 Resource tracking 有权
标题翻译：资源跟踪
公开(公告)号：US08335762B2
公开(公告)日：2012-12-18
申请号：US12245972
申请日：2008-10-06
申请人： Abolade Gbadegesin , Viraj B. Mody , David C. Steere , William Michael Zintel , Bruce W. Copeland , Atul Adya , Thomas W. Kleinpeter
发明人： Abolade Gbadegesin , Viraj B. Mody , David C. Steere , William Michael Zintel , Bruce W. Copeland , Atul Adya , Thomas W. Kleinpeter
IPC分类号： G06F17/30
CPC分类号： H04L29/0854 , G06F17/30516 , H04L67/1095
摘要： Clients may subscribe to resources for the purpose of receiving notifications of changes in the resource (e.g., a file is added to a shared folder). Storing subscriptions within persistent storage provides data security in the event of a service failure, at the cost of high latency in accessing subscription data. An efficient method for tracking a resource is provided herein. A subscription service creates subscriptions and monitors resources for a client. Upon a subscribed resource change, a notification service stores a notification of the change into a queue associated with the client. Efficient resource tracking is achieved because notification and subscription data is stored in low latency soft memory. The notification service is configured to detect a failure in the notification service and/or subscription service. In the event a service fails, the client provides a recovery mechanism by resubscribing to resources the client is interested in.
摘要翻译：客户可以订阅资源，以便接收资源更改的通知（例如，将文件添加到共享文件夹）。在永久存储器中存储订阅会在服务发生故障的情况下提供数据安全性，代价是访问订阅数据的高延迟。本文提供了一种跟踪资源的有效方法。订阅服务创建订阅并监视客户端的资源。在订阅的资源更改时，通知服务将更改的通知存储到与客户端相关联的队列中。由于通知和订阅数据存储在低延迟软存储器中，因此实现高效的资源跟踪。通知服务被配置为检测通知服务和/或订阅服务中的故障。在服务失败的情况下，客户端通过重新订阅客户端感兴趣的资源来提供恢复机制。

99. 发明授权

US08327030B2 Crisscross cancellation protocol 有权
标题翻译：十字交叉取消协议
公开(公告)号：US08327030B2
公开(公告)日：2012-12-04
申请号：US12824092
申请日：2010-06-25
申请人： Atul Adya , Alastair Wolman , John D. Dunagan
发明人： Atul Adya , Alastair Wolman , John D. Dunagan
IPC分类号： G06F15/16
CPC分类号： H04L65/1003 , H04L43/10 , H04L67/14 , H04L67/142
摘要： Technologies, systems, and methods for ordered message delivery that avoid message races or crisscrosses between communicating nodes. For example, if Node A sends message 3 towards Node B and, shortly thereafter, Node B sends message X to Node A, Node A would like to know whether or not message X reflects Node B's state after receiving message 3. If Node B received message 3 prior to sending message X, then proper state may be maintained between the nodes. But if messages 3 and X crisscrossed, or if message 3 was never properly received by Node B, then the state between the nodes may be corrupt. Technologies, systems, and methods are provided to avoid such corruption.
摘要翻译：用于有序消息传递的技术，系统和方法，可避免通信节点之间的消息种族或交叉。例如，如果节点A向节点B发送消息3，并且此后不久，节点B向节点A发送消息X，则节点A想要知道消息X是否在接收到消息3之后反映节点B的状态。如果节点B接收到消息3在发送消息X之前，则可以在节点之间保持适当的状态。但如果消息3和X十字交叉，或者如果节点B从未正确接收到消息3，则节点之间的状态可能已损坏。提供技术，系统和方法以避免这种腐败。

100. 发明授权

US08086227B2 Collaboratively locating disconnected clients and rogue access points in a wireless network 有权
标题翻译：在无线网络中协作定位不连接的客户端和流氓接入点
公开(公告)号：US08086227B2
公开(公告)日：2011-12-27
申请号：US11940466
申请日：2007-11-15
申请人： Atul Adya , Paramvir Bahl , Ranveer Chandra , Lili Qiu
发明人： Atul Adya , Paramvir Bahl , Ranveer Chandra , Lili Qiu
IPC分类号： H04M11/00
CPC分类号： H04W12/12 , H04W24/08 , H04W64/00
摘要： Methods are described for using collaboration of neighboring wireless devices to enable location of disconnected wireless devices and rogue wireless access points. A central server computes the locations of the neighboring clients and uses those locations to estimate the location of a disconnected client. These techniques may take advantage of the beaconing and probing mechanisms of IEEE 802.11 to ensure that connected clients do not pay unnecessary overheads for detecting disconnected clients. Methods are also described for detecting and locating rogue devices by collaboratively collecting information from neighboring devices and comparing the information to a database.
摘要翻译：描述了使用相邻无线设备的协作来实现断开的无线设备和流氓无线接入点的位置的方法。中央服务器计算相邻客户端的位置，并使用这些位置来估计断开的客户端的位置。这些技术可以利用IEEE 802.11的信标和探测机制来确保连接的客户端不会为检测断开的客户端支付不必要的开销。还描述了通过协同收集来自相邻设备的信息并将该信息与数据库进行比较来检测和定位流氓设备的方法。

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