公开(公告)号：US08204967B2

公开(公告)日：2012-06-19

申请号：US10824725

申请日：2004-04-14

申请人： Rajiv Goel ,  Jianyu Chen ,  Scott Molloy ,  Chung T. Nguyen ,  David Ward ,  John Bettink ,  Peramanayagam Marimuthu

发明人： Rajiv Goel ,  Jianyu Chen ,  Scott Molloy ,  Chung T. Nguyen ,  David Ward ,  John Bettink ,  Peramanayagam Marimuthu

IPC分类号： G06F15/177

CPC分类号： H04L12/4633

摘要： A method is disclosed for dynamically creating encapsulation and decapsulation chains and segmenting the packet-forwarding plane. A distributed router may comprise multiple cards, each exposing a subset of the router's physical interfaces. Some physical interfaces may be configured to send/receive only certain types and destinations of data packets. Some cards might not expose any physical interfaces configured to send/receive a particular type and destination of packet, making encapsulation and/or decapsulation chains for virtual interfaces that process data packets of the particular type useless on those cards. Therefore, instead of always creating both encapsulation and decapsulation chains for a virtual interface on a card, an aspect of the method dynamically determines which of the encapsulation and decapsulation chains are useful for a virtual interface on that card, and creates only those chains that are useful on that card. Thus, the packet-forwarding plane is segmented into independent encapsulation and decapsulation segments.

摘要翻译： 公开了一种用于动态地创建封装和解封装链以及对分组转发平面进行分段的方法。 分布式路由器可以包括多个卡，每个卡暴露路由器的物理接口的子集。 一些物理接口可以被配置为仅发送/接收数据分组的某些类型和目的地。 某些卡可能不会将任何物理接口配置为发送/接收数据包的特定类型和目标，从而为处理特定类型的数据包在这些卡上无用的虚拟接口进行封装和/或解封装链。 因此，代替总是为卡上的虚拟接口创建封装和解封装链，该方法的一个方面动态地确定哪个封装和解封装链对于该卡上的虚拟接口是有用的，并且仅创建那些链 对该卡有用 因此，分组转发平面被分割为独立的封装和解封装段。

公开(公告)号：US20120144066A1

公开(公告)日：2012-06-07

申请号：US13110987

申请日：2011-05-19

申请人： Jan Medved ,  Hannes Gredler ,  David Ward ,  Satish Raghunath

发明人： Jan Medved ,  Hannes Gredler ,  David Ward ,  Satish Raghunath

IPC分类号： G06F15/173

CPC分类号： H04L45/42 ,  H04L45/02 ,  H04L45/04 ,  H04L45/64 ,  H04L67/32 ,  H04L69/321 ,  H04L69/329

摘要： In general, techniques are described for using routing information obtained by operation of network routing protocols to dynamically generate network and cost maps for an application-layer traffic optimization (ALTO) service. For example, an ALTO server of an autonomous system (AS) receives routing information from routers of the AS by listening for routing protocol updates outputted by the routers and uses the received topology information to dynamically generate a network map of PIDs that reflects a current topology of the AS and/or of the broader network that includes the AS. Additionally, the ALTO server dynamically calculates inter-PID costs using received routing information that reflects current link metrics. The ALTO server then assembles the inter-PID costs into a cost map that the ALTO server may provide, along with the network map, to clients of the ALTO service.

摘要翻译： 一般来说，描述了使用通过网络路由协议的操作而获得的路由信息​​来动态地生成用于应用层流量优化（ALTO）服务的网络和成本映射的技术。 例如，自治系统（AS）的ALTO服务器通过监听由路由器输出的路由协议更新从AS的路由器接收路由信息，并使用接收的拓扑信息动态生成反映当前拓扑的PID的网络映射 的AS和/或包括AS的更广泛的网络。 此外，ALTO服务器使用反映当前链路指标的接收路由信息动态计算PID间成本。 然后，ALTO服务器将PID成本组合到ALTO服务器可以提供的成本图以及网络映射到ALTO服务的客户端。

公开(公告)号：US08154956B2

公开(公告)日：2012-04-10

申请号：US12633307

申请日：2009-12-08

申请人： David Ward

发明人： David Ward

IPC分类号： G01V1/137 ,  H04B17/00

CPC分类号： G01V1/26

摘要： Data is collected from the integral timing sensor of a marine acoustic source such as an airgun, typically used for seismic measurements. Artefacts in the firing data are used to monitor the firing pressure and optionally the correct functioning of the marine acoustic source.

摘要翻译： 从诸如通常用于地震测量的气枪的海洋声源的积分定时传感器收集数据。 燃烧数据中的人工制品用于监测燃烧压力和可选的海洋声源的正确功能。

公开(公告)号：US08087459B2

公开(公告)日：2012-01-03

申请号：US12415571

申请日：2009-03-31

申请人： Rebecca Caldwell ,  Patrick J. Zimmerman ,  Robert Coon ,  Henry Joe Jordan, Jr. ,  David Ward

发明人： Rebecca Caldwell ,  Patrick J. Zimmerman ,  Robert Coon ,  Henry Joe Jordan, Jr. ,  David Ward

IPC分类号： E21B33/12

CPC分类号： E21B33/1208 ,  E21B23/04 ,  E21B23/06 ,  E21B33/1216 ,  E21B33/126 ,  E21B33/128

摘要： A packer provides multiple seals when deployed downhole. Exposed to an activating agent, a swellable element on the packer's mandrel expands radially outward to form a seal with the borehole wall. Deformable elements, are disposed on the mandrel adjacent the swellable element. These deformable elements deform outward to the surrounding borehole wall to at least partially isolate the downhole annulus and the swellable element. Bias units releasable affixed on the tool adjacent the deformable elements can deform the elements. These bias units can be released either by swelling of the swellable element or by fluid pressure. Once released, the bias units are axially biased toward the deformable elements to deform them. In this way, the packer can form multiple seals with the borehole wall, and the deformable elements can isolate the swellable element from the downhole annulus, which can keep the swellable element from degrading or being overly extruded.

摘要翻译： 封隔器在井下部署时提供多个密封。 封隔器心轴上的可膨胀元件暴露于活化剂时，径向向外膨胀，以形成与钻孔壁的密封。 可变形元件设置在与可膨胀元件相邻的心轴上。 这些可变形元件向外变形到周围的钻孔壁，以至少部分隔离井下环和可膨胀元件。 可拆卸地固定在与可变形元件相邻的工具上的偏置单元可使元件变形。 这些偏压单元可以通过溶胀元件的溶胀或通过流体压力释放。 一旦释放，偏压单元被轴向偏向可变形元件以使它们变形。 以这种方式，封隔器可以与钻孔壁形成多个密封，并且可变形元件可以将可溶胀元件与井下环空隔离开，这可以保持可溶胀元件的降解或过度挤压。

公开(公告)号：US08069918B2

公开(公告)日：2011-12-06

申请号：US12409661

申请日：2009-03-24

申请人： Patrick J. Zimmerman ,  David Ward ,  Jonathan Young

发明人： Patrick J. Zimmerman ,  David Ward ,  Jonathan Young

IPC分类号： E21B23/01

CPC分类号： E21B33/129 ,  E21B23/06

摘要： A downhole tool, such as a packer or liner hanger, has a mandrel on which slips are disposed for engaging a surrounding tubular downhole. When the tool is being run in or out of the hole, at least one magnetic component magnetically retains the slip adjacent the mandrel so the slip can be held away from the surrounding tubular. When the tool is set downhole, the initial magnetic retention can be broken, and the slips can be moved away from the mandrel to engage the surface of the surrounding tubular.

摘要翻译： 诸如封隔器或衬管悬挂器的井下工具具有心轴，在其上设有滑动件用于与周围的管状井下接合。 当工具进出孔时，至少一个磁性部件磁性地将滑动件保持在心轴附近，使得滑动件能够远离周围的管状部件。 当工具设置在井下时，可以破坏初始磁保持，并且滑动件可以移动远离心轴以接合周围管的表面。

公开(公告)号：US20110222091A1

公开(公告)日：2011-09-15

申请号：US12721391

申请日：2010-03-10

申请人： David Ward ,  Martin Wirth

发明人： David Ward ,  Martin Wirth

IPC分类号： G06F3/12

CPC分类号： G06F3/1284 ,  G06F3/1215 ,  G06F3/124 ,  G06F3/1248

摘要： Systems and methods presented herein provide for the processing of PostScript print jobs that are not DSC compliant. A single stream of a PostScript data is processed and divided into multiple streams (e.g., page objects), each comprising data operable to render an individual page. In one embodiment, a method includes receiving the PostScript data stream and identifying object tokens in the PostScript data stream. An object token is operable to generate a PostScript object or execute a PostScript operation. A portion of the object tokens may be operable to define page boundaries in the PostScript data stream. The method also includes analyzing the object tokens to parse the object tokens into a plurality of page objects, separating the page objects into a plurality of data paths, and parallel processing the page objects through the data paths to rasterize the PostScript data stream on a page by page basis.

摘要翻译： 本文介绍的系统和方法提供了不符合DSC标准的PostScript打印作业的处理。 PostScript数据的单个流被处理并分成多个流（例如，页面对象），每个流包括可操作以呈现单个页面的数据。 在一个实施例中，一种方法包括在PostScript数据流中接收PostScript数据流并识别对象标记。 对象标记可用于生成PostScript对象或执行PostScript操作。 对象标记的一部分可以用于在PostScript数据流中定义页面边界。 该方法还包括分析对象标记以将对象标记解析成多个页面对象，将页面对象分离成多个数据路径，以及通过数据路径并行处理页面对象以在页面上光栅化PostScript数据流 逐页。

公开(公告)号：US20110192613A1

公开(公告)日：2011-08-11

申请号：US13087635

申请日：2011-04-15

申请人： Cesar G. Garcia ,  Patrick J. Zimmerman ,  David Ward ,  Antonio B. Flores ,  Michael Dedman

发明人： Cesar G. Garcia ,  Patrick J. Zimmerman ,  David Ward ,  Antonio B. Flores ,  Michael Dedman

IPC分类号： E21B34/14

CPC分类号： E21B34/063 ,  E21B23/08 ,  E21B34/14 ,  E21B2034/007

摘要： A downhole sleeve has an insert movable in the sleeve's bore from a closed condition to an opened condition when a ball dropped in the bore engages an indexing seat in the sliding sleeve. In the closed condition, the insert prevents communication between the bore and the sleeve's port, while the insert in the opened condition permits communication between the bore and port. Keys of a seat extend into the bore to engage the ball and to move the insert open. After opening, the keys retract so the ball can pass through the sleeve to another cluster sleeve or to an isolation sleeve of an assembly. Insets or buttons disposed in the sleeve's port temporarily maintain fluid pressure in the sleeve's bore so that a cluster of sleeves can be opened before treatment fluid dislodges the button to treat the surrounding formation through the open port.

摘要翻译： 井下套筒具有可在套筒孔中从闭合状态移动到打开状态的插入件，当球落入孔中的啮合滑动套筒中的分度座时。 在封闭状态下，插入件防止孔和套筒端口之间的连通，而插入件处于打开状态则允许孔和端口之间的连通。 座椅的钥匙延伸到孔中以接合球并将插入件打开。 打开后，钥匙缩回，使得球可以穿过套筒到另一个簇套筒或组件的隔离套筒。 设置在套筒端口中的插塞或按钮暂时保持套筒孔中的流体压力，使得在治疗液体移除按钮以便通过开放端口处理周围地层之前可以打开一簇套筒。

公开(公告)号：US07974285B2

公开(公告)日：2011-07-05

申请号：US11045015

申请日：2005-01-26

申请人： Stefano Benedetto Previdi ,  Clarence Filsfils ,  Jean-Philippe Vasseur ,  Benoit Claise ,  David Ward

发明人： Stefano Benedetto Previdi ,  Clarence Filsfils ,  Jean-Philippe Vasseur ,  Benoit Claise ,  David Ward

IPC分类号： H04L12/28 ,  H04L12/56 ,  G06F15/173

CPC分类号： H04L45/02

摘要： A method of identifying an egress point to a network location in a data communications network comprising a plurality of nodes and links there between comprises the step, performed at the identifying node, of receiving a notification through the network advertising an adjacency to a network location. The method further comprises the steps, performed at the identifying node, of deriving from the notification adjacency information and identifying, from the adjacency information, the egress point.

摘要翻译： 一种识别包括在其中的多个节点和链路的数据通信网络中的网络位置的出口点的方法包括：在识别节点执行的步骤，通过网络接收通知与网络位置相邻的通知。 所述方法还包括在所述识别节点处执行的从所述通知邻接信息导出并从所述邻接信息识别所述出口点的步骤。

公开(公告)号：US20110064407A1

公开(公告)日：2011-03-17

申请号：US12586041

申请日：2009-09-15

申请人： Ornan Gerstel ,  Flavio Bonomi ,  David Ward

发明人： Ornan Gerstel ,  Flavio Bonomi ,  David Ward

IPC分类号： H04J14/00

CPC分类号： H04B10/0793 ,  H04B10/07955 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0267 ,  H04J14/0284 ,  H04L45/22 ,  H04L45/245 ,  H04L45/70 ,  H04L47/10 ,  H04L47/125 ,  Y02D50/30

摘要： A method for communicating optically between nodes of an optical network, including forming, between a first node and a second node of the network, a set of lightpaths, each of the set of lightpaths having a respective configuration, and transferring communication traffic between the first and second nodes via the set of lightpaths. The method also includes forming a determination for the set of lightpaths that a communication traffic level associated therewith is less than a predetermined threshold, and in response to the determination, removing a lightpath having a given configuration from the set of lightpaths to form a reduced set of lightpaths. The method further includes transferring the communication traffic between the first and second nodes via the reduced set of lightpaths, while reducing a level of power consumption in the removed lightpath and while maintaining the given configuration of the removed lightpath.

摘要翻译： 一种用于在光网络的节点之间进行光学通信的方法，包括在所述网络的第一节点和所述第二节点之间形成一组光路，所述一组光路中的每一个具有相应的配置，并且在所述第一 以及经由一组光路的第二节点。 该方法还包括形成对于与其相关联的通信业务量小于预定阈值的光路集合的确定，并且响应于该确定，从所述一组光路中去除具有给定配置的光路以形成缩小集合 的光线。 该方法还包括经由减少的光路集合在第一节点和第二节点之间传送通信业务，同时降低去除的光路中的功率消耗水平，同时保持去除的光路的给定配置。

公开(公告)号：US20100165786A1

公开(公告)日：2010-07-01

申请号：US12633307

申请日：2009-12-08

申请人： David Ward

发明人： David Ward

IPC分类号： H04B17/00

CPC分类号： G01V1/26

摘要： Data is collected from the integral timing sensor of a marine acoustic source such as an airgun, typically used for seismic measurements. Artefacts in the firing data are used to monitor the firing pressure and optionally the correct functioning of the marine acoustic source.

摘要翻译： 从诸如通常用于地震测量的气枪的海洋声源的积分定时传感器收集数据。 燃烧数据中的人工制品用于监测燃烧压力和可选的海洋声源的正确功能。