公开(公告)号：US07076611B2

公开(公告)日：2006-07-11

申请号：US10632386

申请日：2003-08-01

申请人： David C. Steere ,  Brian S. Aust ,  Yun Lin ,  Mohammed Samji ,  Navjot Virk ,  Shishir P. Pardikar

发明人： David C. Steere ,  Brian S. Aust ,  Yun Lin ,  Mohammed Samji ,  Navjot Virk ,  Shishir P. Pardikar

IPC分类号： G06F12/00 ,  G06F7/00

CPC分类号： G06F12/121 ,  G06F12/0868 ,  G06F2212/463

摘要： The present invention is directed at a system and method for managing and evicting objects stored in a cache. The invention provides a mechanism for determining which objects to evict based on a weight that is calculated for each object stored in the cache. The weight is determined by at least two factors, including file size, file type, primary user, last access time, and the like, and by the relative importance of each of the factors. The weight for each object may be determined autonomously and/or may be determined upon a trigger event. The factors and their relative importance may be obtained from a policy applicable to one or several computers.

摘要翻译： 本发明涉及用于管理和排除存储在高速缓存中的对象的系统和方法。 本发明提供了一种用于基于为存储在高速缓存中存储的每个对象计算的权重来确定要驱逐的对象的机制。 重量由至少两个因素确定，包括文件大小，文件类型，主用户，最后访问时间等，以及每个因素的相对重要性。 每个对象的权重可以自主确定和/或可以在触发事件上确定。 这些因素及其相对重要性可以从适用于一台或多台计算机的策略中获得。

公开(公告)号：US07702745B2

公开(公告)日：2010-04-20

申请号：US11064235

申请日：2005-02-22

申请人： Yun Lin ,  Navjot Virk ,  Brian S. Aust ,  Shishir P. Pardikar ,  David C. Steere ,  Mohammed A. Samji

发明人： Yun Lin ,  Navjot Virk ,  Brian S. Aust ,  Shishir P. Pardikar ,  David C. Steere ,  Mohammed A. Samji

IPC分类号： G06F15/16

CPC分类号： G06F17/30902

摘要： The present invention provides a novel client side caching (CSC) infrastructure that supports transition states at the directory level to facilitate a seamless operation across connectivity states between client and remote server. More specifically, persistent caching is performed to safeguard the user (e.g., client) and/or the client applications across connectivity interruptions and/or bandwidth changes. This is accomplished in part by caching to a client data store the desirable file(s) together with the appropriate file access parameters. Moreover, the client maintains access to cached files during periods of disconnect. Furthermore, portions of a path can be offline while other portions upstream can remain online. CSC operates on the logical path which cooperates with DFS which operates on the physical path to keep track of files cached, accessed and changes in the directories. In addition, truth on the client is facilitated whether or not a conflict of file copies exists.

公开(公告)号：US07698376B2

公开(公告)日：2010-04-13

申请号：US11064255

申请日：2005-02-22

申请人： Yun Lin ,  Navjot Virk ,  Brian S. Aust ,  Shishir P. Pardikar ,  David C. Steere ,  Mohammed A. Samji

发明人： Yun Lin ,  Navjot Virk ,  Brian S. Aust ,  Shishir P. Pardikar ,  David C. Steere ,  Mohammed A. Samji

IPC分类号： G06F15/16

CPC分类号： G06F17/30902

摘要： The present invention provides a novel client side caching (CSC) infrastructure that supports transition states at the directory level to facilitate a seamless operation across connectivity states between client and remote server. More specifically, persistent caching is performed to safeguard the user (e.g., client) and/or the client applications across connectivity interruptions and/or bandwidth changes. This is accomplished in part by caching to a client data store the desirable file(s) together with the appropriate file access parameters. Moreover, the client maintains access to cached files during periods of disconnect. Furthermore, portions of a path can be offline while other portions upstream can remain online. CSC operates on the logical path which cooperates with DFS which operates on the physical path to keep track of files cached, accessed and changes in the directories. In addition, truth on the client is facilitated whether or not a conflict of file copies exists.

摘要翻译： 本发明提供了一种新颖的客户端缓存（CSC）基础设施，其支持目录级别的转换状态，以促进跨客户端和远程服务器之间的连接状态的无缝操作。 更具体地，执行持续高速缓存以跨连接中断和/或带宽改变来保护用户（例如，客户端）和/或客户端应用。 这部分是通过将客户端数据存储器连同适当的文件访问参数一起缓存所需的文件来实现的。 此外，客户端在断开连接期间保持对缓存文件的访问。 此外，路径的一部分可以离线，而上游的其他部分可以保持联机。 CSC在与物理路径上运行的DFS协作的逻辑路径上运行，以跟踪缓存，访问和更改目录中的文件。 此外，无论文件副本是否存在冲突，客户端上的真相都是有利的。

公开(公告)号：US08108483B2

公开(公告)日：2012-01-31

申请号：US10768819

申请日：2004-01-30

申请人： Brian S. Aust ,  David G. De Vorchik ,  Yun Lin ,  Timothy P. McKee ,  Jason F. Moore ,  Shishir Pardikar ,  Mohammed Samji ,  David C. Steere ,  Navjot Virk

发明人： Brian S. Aust ,  David G. De Vorchik ,  Yun Lin ,  Timothy P. McKee ,  Jason F. Moore ,  Shishir Pardikar ,  Mohammed Samji ,  David C. Steere ,  Navjot Virk

IPC分类号： G06F15/16

CPC分类号： G06F17/30132 ,  G06F17/30174 ,  G06F17/30233

摘要： A system and method for implementing a consistent user name-space on networked computing devices is provided. When a network connection between a local or host computing device and one or more remote computing devices is present, remote items are represented using the same methodology as items located on the host computing device. To the user, remote and local items are indistinguishable. When the network connection is lost or items located on a remote computer are otherwise unavailable, the unavailable items remain represented on the host computing device. Unavailable items are represented in a way that informs the user that the items may not be fully accessed.

摘要翻译： 提供了一种用于在网络计算设备上实现一致的用户名空间的系统和方法。 当存在本地或主机计算设备与一个或多个远程计算设备之间的网络连接时，使用与位于主机计算设备上的项目相同的方法来表示远程项目。 对用户而言，远程和本地项目是不可区分的。 当网络连接丢失或位于远程计算机上的项目否则不可用时，不可用项目保持在主机计算设备上。 不可用的项目以通知用户这些项目可能未被完全访问的方式表示。

公开(公告)号：US07441011B2

公开(公告)日：2008-10-21

申请号：US10692221

申请日：2003-10-23

申请人： Yun Lin ,  David C. Steere ,  Navjot Virk ,  Shishir P. Pardikar ,  Ahmed H. Mohamed

发明人： Yun Lin ,  David C. Steere ,  Navjot Virk ,  Shishir P. Pardikar ,  Ahmed H. Mohamed

IPC分类号： G06F15/16

CPC分类号： G06F12/0866 ,  G06F12/126 ,  G06F17/30902 ,  G06F2212/463 ,  H04L67/2852 ,  H04L67/289 ,  H04L69/329

摘要： The present invention provides a novel client side caching (CSC) infrastructure that supports transition states at the directory level to facilitate a seamless operation across connectivity states between client and remote server. More specifically, persistent caching is performed to safeguard the user (e.g., client) and/or the client applications across connectivity interruptions and/or bandwidth changes. This is accomplished in part by caching to a client data store the desirable file(s) together with the appropriate file access parameters. Moreover, the client maintains access to cached files during periods of disconnect. Furthermore, portions of a path can be offline while other portions upstream can remain online. CSC operates on the logical path which cooperates with DFS which operates on the physical path to keep track of files cached, accessed and changes in the directories. In addition, truth on the client is facilitated whether or not a conflict of file copies exists.

摘要翻译： 本发明提供了一种新颖的客户端缓存（CSC）基础设施，其支持目录级别的转换状态，以促进跨客户端和远程服务器之间的连接状态的无缝操作。 更具体地，执行持续高速缓存以跨连接中断和/或带宽改变来保护用户（例如，客户端）和/或客户端应用。 这部分是通过将客户端数据存储器连同适当的文件访问参数一起缓存所需的文件来实现的。 此外，客户端在断开连接期间保持对缓存文件的访问。 此外，路径的一部分可以离线，而上游的其他部分可以保持联机。 CSC在与物理路径上运行的DFS协作的逻辑路径上运行，以跟踪缓存，访问和更改目录中的文件。 此外，无论文件副本是否存在冲突，客户端上的真相都是有利的。

公开(公告)号：US07643491B2

公开(公告)日：2010-01-05

申请号：US11275177

申请日：2005-12-16

申请人： Dan Teodosiu ,  Philip A. Chou ,  Alexandra Heron ,  Cheng Huang ,  Tom Kleinpeter ,  Jin Li ,  Eyal Schwartz ,  John T Spivey ,  David C. Steere

发明人： Dan Teodosiu ,  Philip A. Chou ,  Alexandra Heron ,  Cheng Huang ,  Tom Kleinpeter ,  Jin Li ,  Eyal Schwartz ,  John T Spivey ,  David C. Steere

IPC分类号： H04L12/28

CPC分类号： H04L67/325 ,  H04L67/06 ,  H04L67/104 ,  H04L67/1044 ,  H04L67/1095 ,  H04W76/14

摘要： Various embodiments can utilize a distributed solution for scheduling connections between peers in a file sharing environment. In accordance with at least some embodiments, individual nodes in a peer-to-peer system include scheduling software that enables the nodes to make scheduling decisions with regard to how, when and where connections are made with other peers. Scheduling decisions can be based on a number of different parameters. In at least some embodiments, a synchronization negotiation manager is embodied with logic that drives the negotiation and scheduling process. This logic is represented by an innovative state machine that is designed to implement the negotiation and synchronization process.

摘要翻译： 各种实施例可以利用分布式解决方案来调度文件共享环境中的对等体之间的连接。 根据至少一些实施例，对等系统中的单个节点包括调度软件，其使节点能够就如何，何时何地与其他对等体进行连接做出调度决定。 调度决定可以基于许多不同的参数。 在至少一些实施例中，同步协商管理器具有驱动协商和调度过程的逻辑。 该逻辑由创新的状态机表示，旨在实现协商和同步过程。

公开(公告)号：US06390191B1

公开(公告)日：2002-05-21

申请号：US09617001

申请日：2000-07-14

申请人： Arthur F. Melson ,  David C. Steere

发明人： Arthur F. Melson ,  David C. Steere

IPC分类号： E21B2800

CPC分类号： E21B28/00 ,  E21B43/003

摘要： A system for stimulating the production of hydrocarbon containing substances, such as from oil and gas wells, by the use of a generally cylindrical, high energy producing transducer mechanism. The transducer comprises a series of aligned transducer elements, preferably formed of doped ceramic piezoelectric materials, encased in a housing maintained under controlled pressure by a pressure compensator to equalize the pressure within the housing to that of the surrounding strata containing the hydrocarbon substance. When energized, the respective transducer elements transmit a very narrow, horizontal beam of ultrasonic energy radiating omni directionally, preferably in a narrow band of about 2 to 3°, to thereby focus the energy horizontally for maximum penetration into the surrounding strata.

摘要翻译： 一种用于通过使用通常为圆柱形的高能量产生换能器机构来刺激产生含烃物质的系统，例如来自油井和气井。 换能器包括一系列对准的换能器元件，优选地由掺杂的陶瓷压电材料形成，封装在由压力补偿器保持在受控压力下的壳体中，以将壳体内的压力与含有烃物质的周围地层的压力相等。 当通电时，相应的换能器元件发射非常狭窄的水平的超声能量束，其全向辐射，优选地在约2至3°的窄带内辐射，从而水平聚焦以最大程度地渗透到周围的层中。

公开(公告)号：US07685633B2

公开(公告)日：2010-03-23

申请号：US11326992

申请日：2006-01-05

申请人： Ido Ben-Shachar ,  Ashwin Palekar ,  David C. Steere ,  Joy Chik ,  Tudor A. Baraboi ,  Meher P. Malakapalli

发明人： Ido Ben-Shachar ,  Ashwin Palekar ,  David C. Steere ,  Joy Chik ,  Tudor A. Baraboi ,  Meher P. Malakapalli

IPC分类号： G06F15/16

CPC分类号： H04L63/029 ,  H04L63/0227 ,  H04L63/08 ,  H04L63/102

摘要： Implementations of the present invention relate to a communication framework that is readily adaptable to a wide variety of resources intended to be accessible through a firewall. In general, a communication framework at a gateway server can provide a specific connection to a requested resource in accordance with a wide range of resource and/or network access policies. In one instance, a client requests a connection to a specific resource behind a firewall. The communication framework authenticates the connection, and quarantines the connection until determining, for example, that the client is using an appropriate resource features. If appropriately authenticated, the communication framework can pass control of the connection to an appropriately identified protocol plug-in processor, which facilitates a direct connection to the requested resource at an application layer of a communication stack.

摘要翻译： 本发明的实现涉及一种易于适应旨在通过防火墙访问的各种资源的通信框架。 通常，网关服务器处的通信框架可以根据广泛的资源和/或网络访问策略提供与请求的资源的特定连接。 在一种情况下，客户端请求与防火墙后面的特定资源的连接。 通信框架认证连接，并隔离连接，直到确定客户端正在使用适当的资源特征。 如果适当地认证，则通信框架可以将连接的控制传递到适当识别的协议插件处理器，这有助于在通信栈的应用层处直接连接到所请求的资源。

公开(公告)号：US07743023B2

公开(公告)日：2010-06-22

申请号：US11275870

申请日：2006-02-01

申请人： Dan Teodosiu ,  David C. Steere ,  Muthukaruppan Annamalai ,  Nikolaj S Bjorner ,  Michael J Bohlander ,  Huisheng Liu ,  Patrick E Bozeman

发明人： Dan Teodosiu ,  David C. Steere ,  Muthukaruppan Annamalai ,  Nikolaj S Bjorner ,  Michael J Bohlander ,  Huisheng Liu ,  Patrick E Bozeman

IPC分类号： G06F7/00 ,  G06F17/30

CPC分类号： G06F17/30212

摘要： Various embodiments introduce the notion of a replication entity which implements a highly scalable file replication system. In one embodiment, the replication entity resides in the form of a scalable replication service. In at least some embodiments, the replication service provides a “drive in the sky” facility that can be used by individuals, such as subscribers, to synchronize their individual machines, such that their files are automatically replicated to a safe and always-on location. Alternatively or additionally, individuals such as subscribers can also access their files via a web-based interface when they are away from their machines.

摘要翻译： 各种实施例引入了实现高度可扩展性的文件复制系统的复制实体的概念。 在一个实施例中，复制实体驻留在可伸缩复制服务的形式中。 在至少一些实施例中，复制服务提供了可以被诸如订户之类的个人使用的“天空中的驱动器”来同步其各自的机器，使得它们的文件被自动地复制到安全且永远在位的位置 。 或者或另外，诸如订户的个人当他们离开他们的机器时也可以经由基于网络的界面访问他们的文件。

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。