公开(公告)号：US06996618B2

公开(公告)日：2006-02-07

申请号：US09898807

申请日：2001-07-03

申请人： John G. Apostolopoulos ,  Sujoy Basu ,  Gene Cheung ,  Rajendra Kumar ,  Sumit Roy ,  Wai-tan Tan ,  Susie J. Wee ,  Tina Wong ,  Bo Shen

发明人： John G. Apostolopoulos ,  Sujoy Basu ,  Gene Cheung ,  Rajendra Kumar ,  Sumit Roy ,  Wai-tan Tan ,  Susie J. Wee ,  Tina Wong ,  Bo Shen

IPC分类号： G06F15/16

CPC分类号： H04W36/12 ,  H04L67/04 ,  H04L67/14 ,  H04L69/329

摘要： A method for handing off to a second server, in either a fixed or mobile streaming media system, a multiple description streaming session between a first server and either a fixed or mobile client. In one embodiment, the present invention recites selecting a second server to receive a handoff of a multiple description streaming media session between the first server and the client. In this embodiment, the multiple description streaming media session is comprised of a first multiple description bitstream and a second multiple description bitstream. The present embodiment further recites receiving at the second server, the second multiple description bitstream for streaming to the client. This embodiment further recites sending the second multiple description bitstream from the second server to the client.

摘要翻译： 一种在固定或移动流媒体系统中切换到第二服务器的方法，在第一服务器和固定或移动客户端之间的多描述流会话。 在一个实施例中，本发明阐述了选择第二服务器以接收第一服务器和客户端之间的多描述流媒体会话的切换。 在该实施例中，多描述流媒体会话由第一多重描述比特流和第二多个描述比特流组成。 本实施例进一步在第二服务器处接收第二多个描述比特流，以便流式传送到客户端。 该实施例进一步叙述将第二多重描述比特流从第二服务器发送到客户端。

公开(公告)号：US07200402B2

公开(公告)日：2007-04-03

申请号：US09898572

申请日：2001-07-03

申请人： John G. Apostolopoulos ,  Sujoy Basu ,  Gene Cheung ,  Rajendra Kumar ,  Sumit Roy ,  Wai-tan Tan ,  Susie J. Wee ,  Tina Wong ,  Bo Shen

发明人： John G. Apostolopoulos ,  Sujoy Basu ,  Gene Cheung ,  Rajendra Kumar ,  Sumit Roy ,  Wai-tan Tan ,  Susie J. Wee ,  Tina Wong ,  Bo Shen

IPC分类号： H04Q7/20

CPC分类号： H04W36/18 ,  H04B7/022 ,  H04L25/4919 ,  H04W36/08

摘要： A method for performing a soft-handoff in a mobile streaming media system, and a method for performing a hard-handoff in a mobile streaming media system are is disclosed. In the soft-handoff embodiment, the present invention detects that a channel quality between a mobile client and a first base station remains above a drop threshold and that a channel quality between the mobile client and a second base station increases from below to above an add threshold. The present embodiment then sends a first multiple description bitstream from the first base station to the mobile client and sends a complementary second multiple description bitstream from the second base station to the mobile client. This method thereby provides improved utilization of wireless bandwidth during soft-handoffs, in contrast to conventional systems where the same bitstream is transmitted from each base station. In both the cases of soft-handoffs and hard-handoffs, when a mobile client enters a cell whose base station has no free capacity, the base station may prevent call dropping by reducing the number of descriptions being served to the existing clients and thereby providing capacity (at least one description) for the new client. These methods provide improved utilization of wireless bandwidth during soft-handoffs, and reduced probability of service disruption during both soft-handoffs and hard-handoffs.

摘要翻译： 公开了一种用于在移动流媒体系统中执行软切换的方法，以及用于在移动流媒体系统中执行硬切换的方法。 在软切换实施例中，本发明检测到移动客户端与第一基站之间的信道质量保持高于丢弃阈值，并且移动客户端与第二基站之间的信道质量从下至上增加 阈。 本实施例然后将第一多个描述比特流从第一基站发送到移动客户端，并将互补的第二多个描述比特流从第二基站发送到移动客户端。 因此，与从每个基站发送相同比特流的常规系统相比，该方法从而提供了在软切换期间无线带宽的改进的利用。 在软切换和硬切换的情况下，当移动客户端进入其基站没有可用容量的小区时，基站可以通过减少向现有客户端提供的描述的数量来防止呼叫丢弃，从而提供 新客户端的容量（至少一个描述）。 这些方法在软切换期间提供了无线带宽的改进的利用，并且在软切换和硬切换期间降低了服务中断的概率。

公开(公告)号：US06941378B2

公开(公告)日：2005-09-06

申请号：US09898800

申请日：2001-07-03

申请人： John G. Apostolopoulos ,  Sujoy Basu ,  Gene Cheung ,  Rajendra Kumar ,  Sumit Roy ,  Wai-tan Tan ,  Susie J. Wee ,  Tina Wong ,  Bo Shen

发明人： John G. Apostolopoulos ,  Sujoy Basu ,  Gene Cheung ,  Rajendra Kumar ,  Sumit Roy ,  Wai-tan Tan ,  Susie J. Wee ,  Tina Wong ,  Bo Shen

IPC分类号： H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04L29/14 ,  G06F15/16 ,  G06F15/173

CPC分类号： H04L65/4084 ,  H04L29/06027 ,  H04L65/607 ,  H04L69/329 ,  H04L69/40 ,  H04N21/23103 ,  H04N21/234327 ,  H04N21/234381 ,  H04N21/2662 ,  H04N21/41407 ,  H04W4/00 ,  H04W88/08

摘要： A method for assigning servers to provide multiple description bitstreams to a mobile client (in a mobile client environment) or to a fixed client (in a fixed client environment). In one embodiment, the present invention, upon receiving a request from a mobile client to have media data streamed thereto, analyzes a plurality of servers to determine a first candidate server for providing a first multiple description bitstream to the base station along a first path. The present method also determines a second candidate server for providing a second multiple description bitstream to the base station along a second path. The present method then sends a request to the first candidate server to provide the first multiple description bitstream to a mobile client through a base station along the first path, and also sends a request to the second candidate server to provide the second multiple description bitstream to the mobile client through the same base station along a second path. In another embodiment, there are two separate paths from two separate servers to two separate base stations and then from each base station there is a separate path to the mobile client. In still another embodiment, there are two paths from a single server to two separate base stations and then from each base station there is a separate path to the mobile client. In one fixed client embodiment, the present invention is able to assign a plurality of servers to provide a plurality of MD bitstreams to the fixed client.

摘要翻译： 一种用于分配服务器以向移动客户端（在移动客户端环境中）或固定客户端（在固定客户端环境中）提供多个描述比特流的方法。 在一个实施例中，本发明在从移动客户端接收到流媒体数据流的请求时分析多个服务器以确定第一候选服务器，用于沿着第一路径向基站提供第一多个描述比特流。 本方法还确定用于沿着第二路径向基站提供第二多描述比特流的第二候选服务器。 本方法然后向第一候选服务器发送请求，以通过沿着第一路径的基站向移动客户端提供第一多个描述比特流，并且还向第二候选服务器发送请求以将第二多个描述比特流提供给 移动客户端通过相同的基站沿着第二条路径。 在另一个实施例中，存在从两个分离的服务器到两个单独的基站的两个单独的路径，然后从每个基站到达移动客户端的单独的路径。 在另一个实施例中，存在从单个服务器到两个单独基站的两条路径，然后从每个基站到达移动客户端的单独路径。 在一个固定客户端实施例中，本发明能够分配多个服务器以向固定客户端提供多个MD比特流。

公开(公告)号：US06857047B2

公开(公告)日：2005-02-15

申请号：US10167358

申请日：2002-06-10

申请人： Sujoy Basu ,  Sumit Roy ,  Rajendra Kumar

发明人： Sujoy Basu ,  Sumit Roy ,  Rajendra Kumar

IPC分类号： G06F12/08 ,  G06F12/00

CPC分类号： G06F12/0866 ,  G06F2212/311 ,  G06F2212/401 ,  Y10S707/99942

摘要： A computer system is provided including a processor, a persistent storage device, and a main memory connected to the processor and the persistent storage device. The main memory includes a compressed cache for storing data retrieved from the persistent storage device after compression and an operating system. The operating system includes a plurality of interconnected software modules for accessing the persistent storage device and a filter driver interconnected between two of the plurality of software modules for managing memory capacity of the compressed cache and the buffer cache.

摘要翻译： 提供了一种包括处理器，持久存储设备和连接到处理器和永久存储设备的主存储器的计算机系统。 主存储器包括压缩缓存，用于存储在压缩之后从持久存储设备检索的数据和操作系统。 操作系统包括用于访问永久存储设备的多个互连的软件模块和在多个软件模块中的两个之间互连的用于管理压缩高速缓存和缓冲区高速缓存的存储器容量的过滤驱动器。

公开(公告)号：US20060167966A1

公开(公告)日：2006-07-27

申请号：US11008717

申请日：2004-12-09

申请人： Rajendra Kumar ,  Sujoy Basu

发明人： Rajendra Kumar ,  Sujoy Basu

IPC分类号： G06F15/16

CPC分类号： G06F9/5072 ,  G06F9/5038 ,  G06F9/5044 ,  G06F9/505 ,  G06F9/5083

摘要： A scheduler for a grid computing system includes a node information repository and a node scheduler. The node information repository is operative at a node of the grid computing system. Moreover, the node information repository stores node information associated with resource utilization of the node. Continuing, the node scheduler is operative at the node. The node scheduler is configured to determine whether to accept jobs assigned to the node. Further, the node scheduler includes an input job queue for accepted jobs, wherein each accepted job is launched at a time determined by the node scheduler using the node information.

摘要翻译： 网格计算系统的调度器包括节点信息库和节点调度器。 节点信息库在网格计算系统的一个节点处运行。 此外，节点信息库存储与节点的资源利用相关联的节点信息。 继续，节点调度器在节点处工作。 节点调度器被配置为确定是否接受分配给节点的作业。 此外，节点调度器包括用于接受作业的输入作业队列，其中每个接受的作业在节点调度器使用节点信息确定的时间启动。

公开(公告)号：US07340522B1

公开(公告)日：2008-03-04

申请号：US10632447

申请日：2003-07-31

申请人： Sujoy Basu ,  Vanish Talwar ,  Rajendra Kumar

发明人： Sujoy Basu ,  Vanish Talwar ,  Rajendra Kumar

IPC分类号： G06F15/16

CPC分类号： G06F9/5033 ,  G06F9/5072 ,  G06F9/5077 ,  G06F2209/5016

摘要： A method and system for resource allocation. Specifically, in one embodiment, a method begins by receiving a request for an interactive session from a user. The request also comprises a resource requirement profile. Then, the method continues by selecting a computing resource having an affinity to the user. The computing resource is selected from a plurality of computing resources that are available to the user. The selected computing resource is implemented to support the interactive session. Thereafter, the selected computing resource is assigned to the user for use in the interactive session.

摘要翻译： 一种用于资源分配的方法和系统。 具体地，在一个实施例中，方法开始于从用户接收对交互式会话的请求。 该请求还包括资源需求简档。 然后，该方法通过选择对用户具有亲和度的计算资源来继续。 从对用户可用的多个计算资源中选择计算资源。 所选择的计算资源被实现以支持交互式会话。 此后，所选择的计算资源被分配给用户以用于交互式会话。

公开(公告)号：US07475419B1

公开(公告)日：2009-01-06

申请号：US10665879

申请日：2003-09-19

申请人： Sujoy Basu ,  Vanish Talwar ,  Rajendra Kumar

发明人： Sujoy Basu ,  Vanish Talwar ,  Rajendra Kumar

IPC分类号： G06F21/00

CPC分类号： H04L63/105 ,  H04L63/102 ,  H04L67/306

摘要： A system and method for controlling access in an interactive grid environment is disclosed. Embodiments of the present invention include a method for controlling remote desktop access provided by an interactive grid computing system comprising determining user policies based on a classification of a user and providing a dynamic user account to the user, wherein the dynamic user account is customized based on the user policies to limit access to resources accessible through a remote desktop.

摘要翻译： 公开了一种在交互式网格环境中控制访问的系统和方法。 本发明的实施例包括一种用于控制由交互式网格计算系统提供的远程桌面访问的方法，包括基于用户的分类确定用户策略并向用户提供动态用户帐户，其中基于 用户策略限制对通过远程桌面访问的资源的访问。

公开(公告)号：US07130890B1

公开(公告)日：2006-10-31

申请号：US10235116

申请日：2002-09-04

申请人： Rajendra Kumar ,  Sujoy Basu

发明人： Rajendra Kumar ,  Sujoy Basu

IPC分类号： G06F15/16 ,  G06F1/12

CPC分类号： H04L67/2847 ,  G06F12/0862 ,  G06F2212/502 ,  G06F2212/6024 ,  H04L67/28 ,  H04L67/2852

摘要： A method and system for adaptively prefetching objects from a network has been disclosed. The invention includes adaptively tuning a prefetch engine to prefetch a plurality of objects from within the network. Because the prefetch engine is adaptively tuned, the prefetch process is optimized, thereby reducing the number of idle cycles that would otherwise be required to retrieve objects from the network. The method and system includes monitoring at least one proxy server within the network, the at least one proxy server comprising a prefetch engine and adaptively tuning the prefetch engine to prefetch a plurality of objects from within the network.

摘要翻译： 已经公开了一种用于从网络自适应地预取对象的方法和系统。 本发明包括自适应地调整预取引擎以从网络内预取多个对象。 因为预取引擎被自适应调整，所以预取过程被优化，从而减少了从网络检索对象所需的空闲周期数。 所述方法和系统包括监视网络内的至少一个代理服务器，所述至少一个代理服务器包括预取引擎并且自适应地调整预取引擎以从网络内预取多个对象。

公开(公告)号：US06868439B2

公开(公告)日：2005-03-15

申请号：US10117506

申请日：2002-04-04

申请人： Sujoy Basu ,  Rajendra Kumar

发明人： Sujoy Basu ,  Rajendra Kumar

IPC分类号： G06F17/30 ,  G06F15/167

CPC分类号： G06F17/30902

摘要： A special-purpose appliance (SPA) works in conjunction with a server farm consisting of multiple caching server appliances (CSAs) to supervise a local storage medium (i.e., a shared cache) that is accessible by all the CSAs for storing at least some of the remote objects such as web pages and their embedded objects and/or streaming media objects that have been and/or will be served by one or more of the CSAs to its respective clients. The SPA preferably also determines when to prefetch remote objects such as web pages and their embedded objects and/or streaming media objects that are not currently stored in the shared cache, but which the SPA has determined are likely to be requested in the future by one or more of the CSAs one behalf of one or more of the CSA's respective clients. In that regard, the SPA (and/or PSA) does not merely monitor the file requests from each CSA to the remote servers, but rather monitors and aggregates the individual requests from each client to its respective CSA, for example, by monitoring the access logs of each CSA and using that data to decide what to prefetch into the shared cache from the remote server or servers, what is still of value and needs to be updated, and what is no longer of value and can be replaced. What it prefetches can be based, for example, on links present in an already requested web page, on patterns of recent accesses to web pages and streaming media objects, on user profiles, and on past trends.

摘要翻译： 专用设备（SPA）与由多个缓存服务器设备（CSA）组成的服务器场一起工作，以监督可由所有CSA访问的本地存储介质（即，共享高速缓存），用于存储至少一些 诸如网页及其嵌入对象和/或流媒体对象的远程对象和/或将被一个或多个CSA服务于其相应的客户端。 SPA优选地还确定何时预取远程对象，例如网页及其嵌入的对象和/或当前未被存储在共享缓存中的流媒体对象，但是SPA已经确定的未来可能被请求一个 或更多的CSA代表CSA的一个或多个客户。 在这方面，SPA（和/或PSA）不仅监视来自每个CSA的文件请求到远程服务器，而且监视和聚合来自每个客户端的各个请求到其相应的CSA，例如通过监视访问 每个CSA的日志，并使用该数据来决定从远程服务器或服务器预取哪些共享缓存，还有什么值得和需要更新，什么不再是有价值的并且可以被替换。 它预取的内容可以基于例如已经请求的网页中存在的链接，最近访问网页和流媒体对象的模式，用户简档以及过去趋势。

公开(公告)号：US08935401B2

公开(公告)日：2015-01-13

申请号：US10742480

申请日：2003-12-19

申请人： Rajendra Kumar ,  Vanish Talwar ,  Sujoy Basu

发明人： Rajendra Kumar ,  Vanish Talwar ,  Sujoy Basu

IPC分类号： G06F15/173 ,  G06F15/16 ,  G06F9/50 ,  G06F9/46

CPC分类号： G06F9/5072 ,  G06F9/468

摘要： In brief, the invention provides a method and system for admission control in a grid computing environment. When a user request for a global session is received from a submission node, applications to be launched through the global session are identified, and resource requirements are determined. A execution node is then allocated, and the global session is established between the execution node and the submission node. A user then requests an application session through the established global session, and the application session is established with the execution node.

摘要翻译： 简而言之，本发明提供了一种用于网格计算环境中的准入控制的方法和系统。 当从提交节点接收用户对全局会话的请求时，识别要通过全局会话启动的应用程序，并确定资源需求。 然后分配执行节点，并且在执行节点和提交节点之间建立全局会话。 然后，用户通过建立的全局会话请求应用会话，并且与执行节点建立应用会话。