公开(公告)号：US20150029218A1

公开(公告)日：2015-01-29

申请号：US13951351

申请日：2013-07-25

申请人： Oliver Michael Christian Williams ,  Paul Barham ,  Michael Isard ,  Tuan Wong ,  Kevin Woo ,  Georg Klein ,  Douglas Kevin Service ,  Ashraf Ayman Michail ,  Andrew Pearson ,  Martin Shetter ,  Jeffrey Neil Margolis ,  Nathan Ackerman ,  Calvin Chan ,  Arthur C. Tomlin

发明人： Oliver Michael Christian Williams ,  Paul Barham ,  Michael Isard ,  Tuan Wong ,  Kevin Woo ,  Georg Klein ,  Douglas Kevin Service ,  Ashraf Ayman Michail ,  Andrew Pearson ,  Martin Shetter ,  Jeffrey Neil Margolis ,  Nathan Ackerman ,  Calvin Chan ,  Arthur C. Tomlin

IPC分类号： G06T19/00 ,  G02B27/01

CPC分类号： G06T19/006 ,  G02B27/017 ,  G02B27/0172 ,  G02B27/0179 ,  G02B2027/014 ,  G02B2027/0178 ,  G02B2027/0187 ,  G06F3/012 ,  G06F3/013 ,  G06F3/04815 ,  G06K9/6215 ,  G06K9/66 ,  G06T3/20 ,  G09G3/3208 ,  G09G2300/04

摘要： Methods for generating and displaying images associated with one or more virtual objects within an augmented reality environment at a frame rate that is greater than a rendering frame rate are described. The rendering frame rate may correspond with the minimum time to render images associated with a pose of a head-mounted display device (HMD). In some embodiments, the HMD may determine a predicted pose associated with a future position and orientation of the HMD, generate a pre-rendered image based on the predicted pose, determine an updated pose associated with the HMD subsequent to generating the pre-rendered image, generate an updated image based on the updated pose and the pre-rendered image, and display the updated image on the HMD. The updated image may be generated via a homographic transformation and/or a pixel offset adjustment of the pre-rendered image.

摘要翻译： 描述了以大于渲染帧速率的帧速率在增强现实环境内生成和显示与一个或多个虚拟对象相关联的图像的方法。 渲染帧速率可以对应于呈现与头戴式显示设备（HMD）的姿势相关联的图像的最小时间。 在一些实施例中，HMD可以确定与HMD的未来位置和取向相关联的预测姿态，基于预测姿态生成预渲染图像，在生成预渲染图像之后确定与HMD相关联的更新姿态 基于更新的姿势和预先呈现的图像生成更新的图像，并且在HMD上显示更新的图像。 可以经由预渲染图像的同形变换和/或像素偏移调整来生成更新的图像。

公开(公告)号：US20120159506A1

公开(公告)日：2012-06-21

申请号：US12972563

申请日：2010-12-20

申请人： Paul Barham ,  Joseph N. Figueroa

发明人： Paul Barham ,  Joseph N. Figueroa

IPC分类号： G06F9/46

CPC分类号： G06F9/5044 ,  G06F9/5066 ,  G06F2209/501 ,  G06F2209/503

摘要： A personal datacenter system is described herein that provides a framework for leveraging multiple heterogeneous computers in a dynamically changing environment together as an ad-hoc cluster for performing parallel processing of various tasks. A home environment is much more heterogeneous and dynamic than a typical datacenter, and typical datacenter scheduling strategies do not work well for these types of small clusters. Machines in a home are likely to be powered on and off, be removed and taken elsewhere, and be connected by an ad-hoc network topology with a mix of wired and wireless technologies. The personal data center system provides components to overcome these differences. The system identifies a dynamically available set of machines, characterizes their performance, discovers the network topology, and monitors the available communications bandwidth between machines. This information is then used to compute an efficient execution plan for data-parallel and/or High Performance Computing (HPC)-style applications.

摘要翻译： 本文描述了个人数据中心系统，其提供了用于在动态变化的环境中一起作为用于执行各种任务的并行处理的自组群的多个异构计算机的框架。 家庭环境比典型的数据中心更加异构和动态，而典型的数据中心调度策略对于这些类型的小型集群来说并不奏效。 家庭中的机器可能被开启和关闭，被移除并在其他地方使用，并通过有线和无线技术的组合通过自组织网络拓扑连接。 个人数据中心系统提供组件来克服这些差异。 系统识别动态可用的机器集，表征其性能，发现网络拓扑，并监视机器之间可用的通信带宽。 然后，该信息用于计算数据并行和/或高性能计算（HPC）应用程序的高效执行计划。

公开(公告)号：US20080103729A1

公开(公告)日：2008-05-01

申请号：US11554980

申请日：2006-10-31

申请人： Paul Barham ,  Richard Black ,  Moises Goldszmidt ,  Rebecca Isaacs ,  John MacCormick ,  Richard Mortier

发明人： Paul Barham ,  Richard Black ,  Moises Goldszmidt ,  Rebecca Isaacs ,  John MacCormick ,  Richard Mortier

IPC分类号： G06F19/00 ,  G06F17/40 ,  G06F11/30

CPC分类号： H04L41/06 ,  H04L41/147 ,  H04L41/16 ,  H04L43/0811

摘要： Activity models are maintained on a plurality of computers on a network. When a user or a particular activity model at a computer discovers an error, it may query its own activity model to determine a possible source of the error. If it is determined to not be the likely source of the error, the activity model queries the activity models of those computers on the network that it depends on. These activity models may then query the activity models of the computers that their particular host computer depends on and so forth. Ultimately the results of these activity model queries may be used to diagnose the likely source of the error and may be presented to the requesting user as a report.

摘要翻译： 在网络上的多台计算机上维护活动模型。 当用户或计算机上的特定活动模型发现错误时，它可以查询其自己的活动模型以确定错误的可能来源。 如果确定不是错误的可能来源，则活动模型会查询网络上依赖的那些计算机的活动模型。 然后，这些活动模型可以查询其特定主机依赖的计算机的活动模型等等。 最终，这些活动模型查询的结果可以用于诊断错误的可能来源，并且可以作为报告呈现给请求用户。

公开(公告)号：US10203974B2

公开(公告)日：2019-02-12

申请号：US12972531

申请日：2010-12-20

申请人： Paul Barham ,  Joseph N. Figueroa ,  Jeremiah C. Spradlin

发明人： Paul Barham ,  Joseph N. Figueroa ,  Jeremiah C. Spradlin

IPC分类号： G06F9/50 ,  G06F11/34 ,  G06F9/455 ,  G06F11/30 ,  G06F11/36 ,  G06F21/53 ,  G06F21/57

摘要： A performance monitoring system is described herein that works with a hypervisor to reserve resources outside of a virtual machine to monitor performance of an application running within the virtual machine. The application receives the guaranteed amount of resources specified by the virtual machine's specifications, and the monitoring consumes resources not associated with the virtual machine. The application running in the virtual machine is already isolated by the hypervisor from the physical machine, and thus additional burdens on the physical machine that allow the hypervisor to continue meeting guarantees to the virtual machine will not impact application performance. The performance monitoring system provides instrumentation of deployed applications that information technology (IT) personnel can dynamically turn on and off without affecting the performance of the deployed application. The performance monitoring system provides a robust framework for monitoring production applications without affecting the performance of those applications during execution.

公开(公告)号：US08560839B2

公开(公告)日：2013-10-15

申请号：US12972534

申请日：2010-12-20

申请人： Paul Barham ,  Joseph N. Figueroa

发明人： Paul Barham ,  Joseph N. Figueroa

IPC分类号： H04L29/06

CPC分类号： G06F21/6218 ,  G06F21/604 ,  G06F2221/0708 ,  G06F2221/2111 ,  H04L63/107

摘要： A secure location system is described herein that leverages location-based services and hardware to make access decisions. Many mobile computers have location devices, such as GPS. They also have a trusted platform module (TPM) or other security device. Currently GPS location data is made directly accessible to untrusted application code using a simple protocol. The secure location system provides a secure mechanism whereby the GPS location of a computer at a specific time can be certified by the operating system kernel and TPM. The secure location system logs user activity with a label indicating the geographic location of the computing device at the time of the activity. The secure location system can provide a difficult to forge, time-stamped location through a combination of kernel-mode GPS access and TPM security hardware. Thus, the secure location system incorporates secure location information into authorization and other operating system decisions.

摘要翻译： 本文描述了利用基于位置的服务和硬件来进行访问决定的安全定位系统。 许多移动计算机具有诸如GPS的定位设备。 它们还具有可信平台模块（TPM）或其他安全设备。 目前，GPS位置数据可以使用简单的协议直接访问不受信任的应用程序代码。 安全定位系统提供了一种安全机制，由此可以通过操作系统内核和TPM来认证计算机在特定时间的GPS位置。 安全位置系统使用指示活动时计算设备的地理位置的标签记录用户活动。 安全定位系统可以通过内核模式GPS访问和TPM安全硬件的组合来提供难以伪造的时间戳位置。 因此，安全定位系统将安全位置信息合并到授权和其他操作系统决策中。

公开(公告)号：US20120159454A1

公开(公告)日：2012-06-21

申请号：US12972531

申请日：2010-12-20

申请人： Paul Barham ,  Joseph N. Figueroa ,  Jeremiah C. Spradlin

发明人： Paul Barham ,  Joseph N. Figueroa ,  Jeremiah C. Spradlin

IPC分类号： G06F9/44 ,  G06F9/455

CPC分类号： G06F9/45558 ,  G06F9/45533 ,  G06F9/5077 ,  G06F11/301 ,  G06F11/3096 ,  G06F11/3466 ,  G06F11/3644 ,  G06F2009/45591 ,  G06F2201/815 ,  G06F2221/2141

摘要： A performance monitoring system is described herein that works with a hypervisor to reserve resources outside of a virtual machine to monitor performance of an application running within the virtual machine. The application receives the guaranteed amount of resources specified by the virtual machine's specifications, and the monitoring consumes resources not associated with the virtual machine. The application running in the virtual machine is already isolated by the hypervisor from the physical machine, and thus additional burdens on the physical machine that allow the hypervisor to continue meeting guarantees to the virtual machine will not impact application performance. The performance monitoring system provides instrumentation of deployed applications that information technology (IT) personnel can dynamically turn on and off without affecting the performance of the deployed application. The performance monitoring system provides a robust framework for monitoring production applications without affecting the performance of those applications during execution.

摘要翻译： 本文描述了一种与虚拟机管理程序一起使用的性能监视系统，以在虚拟机之外预留资源以监视在虚拟机内运行的应用程序的性能。 应用程序接收虚拟机规范指定的保证资源量，监视消耗与虚拟机无关的资源。 在虚拟机中运行的应用程序已经由虚拟机管理程序从物理机器隔离，因此允许管理程序继续满足虚拟机保证的物理机器上的额外负担不会影响应用程序的性能。 性能监视系统提供部署应用程序的测量，信息技术（IT）人员可以动态地打开和关闭，而不会影响部署的应用程序的性能。 性能监控系统为监控生产应用提供了一个强大的框架，而不会在执行过程中影响到这些应用程序的性能。

公开(公告)号：US20110138476A1

公开(公告)日：2011-06-09

申请号：US12633326

申请日：2009-12-08

申请人： Richard John Black ,  Paul Barham ,  Manuel Costa ,  Marcus Peinado ,  Jean-Philippe Martin ,  Periklis Akritidis ,  Austin Donnelly ,  Miguel Castro

发明人： Richard John Black ,  Paul Barham ,  Manuel Costa ,  Marcus Peinado ,  Jean-Philippe Martin ,  Periklis Akritidis ,  Austin Donnelly ,  Miguel Castro

IPC分类号： G06F21/22

CPC分类号： G06F21/53 ,  G06F9/468 ,  G06F12/1483 ,  G06F21/54 ,  G06F21/57 ,  G06F2221/2141 ,  G06F2221/2149 ,  H04L63/101

摘要： Software fault isolation methods using byte-granularity memory protection are described. In an embodiment, untrusted drivers or other extensions to a software system are run in a separate domain from the host portion of the software system, but share the same address space as the host portion. Calls between domains are mediated using an interposition library and access control data is maintained for substantially each byte of relevant virtual address space. Instrumentation added to the untrusted extension at compile-time, before load-time, or at runtime and added by the interposition library enforces the isolation between domains, for example by adding access right checks before any writes or indirect calls and by redirecting function calls to call wrappers in the interposition library. The instrumentation also updates the access control data to grant and revoke access rights on a fine granularity according to the semantics of the operation being invoked.

摘要翻译： 描述了使用字节粒度内存保护的软件故障隔离方法。 在一个实施例中，软件系统的不受信任的驱动程序或其他扩展在与软件系统的主机部分分开的域中运行，但是与主机部分共享相同的地址空间。 域之间的调用使用插入库进行调用，并且访问控制数据基本上维持相关虚拟地址空间的每个字节。 在编译期间，在加载时间之前或在运行时添加到不可信扩展的仪器，在插入库中添加的这些扩展可以强制实现域之间的隔离，例如在任何写入或间接调用之前添加访问权限检查，并通过重定向函数调用 在插页库中调用包装器。 仪器还会更新访问控制数据，根据正在调用的操作的语义，以精细粒度授予和撤销访问权限。

公开(公告)号：US07296083B2

公开(公告)日：2007-11-13

申请号：US10187043

申请日：2002-06-28

申请人： Paul Barham ,  Richard Black ,  Neil Stratford

发明人： Paul Barham ,  Richard Black ,  Neil Stratford

IPC分类号： G06F15/16

CPC分类号： H04L47/283 ,  H04L43/00 ,  H04L43/0864 ,  H04L43/0882 ,  H04L43/0894 ,  H04L43/106 ,  H04L43/16 ,  H04L47/10 ,  H04L47/11 ,  H04L47/14

摘要： A method and system are presented for determining the loading and capacity on a variable capacity channel by measuring the times at which packets are enqueued for transmission, and have their transmission completed, or by measuring these times in addition to the arrival times of the packets. The times may be measured using a device driver or other operating system component. The measurement may be performed in a centralized or distributed fashion for multi-access or point to point channels.

摘要翻译： 提出了一种方法和系统，用于通过测量分组入队传输的时间并完成传输，或通过测量这些时间以及分组的到达时间来确定可变容量信道上的负载和容量。 时间可以使用设备驱动程序或其他操作系统组件进行测量。 测量可以以集中或分布的方式对多路访问或点对点信道进行。

公开(公告)号：US20120306850A1

公开(公告)日：2012-12-06

申请号：US13152220

申请日：2011-06-02

申请人： Alexandru Balan ,  Jason Flaks ,  Steve Hodges ,  Michael Isard ,  Oliver Williams ,  Paul Barham ,  Shahram Izadi ,  Otmar Hilliges ,  David Molyneaux ,  David Kim

发明人： Alexandru Balan ,  Jason Flaks ,  Steve Hodges ,  Michael Isard ,  Oliver Williams ,  Paul Barham ,  Shahram Izadi ,  Otmar Hilliges ,  David Molyneaux ,  David Kim

IPC分类号： G06T15/00 ,  G09G5/00

CPC分类号： G06T19/006 ,  G06F3/005 ,  G06F3/0304 ,  G09G3/003 ,  G09G2340/12 ,  G09G2340/125 ,  G09G2340/14 ,  G09G2354/00

摘要： A system and method for providing an augmented reality environment in which the environmental mapping process is decoupled from the localization processes performed by one or more mobile devices is described. In some embodiments, an augmented reality system includes a mapping system with independent sensing devices for mapping a particular real-world environment and one or more mobile devices. Each of the one or more mobile devices utilizes a separate asynchronous computing pipeline for localizing the mobile device and rendering virtual objects from a point of view of the mobile device. This distributed approach provides an efficient way for supporting mapping and localization processes for a large number of mobile devices, which are typically constrained by form factor and battery life limitations.

摘要翻译： 描述了一种用于提供增强现实环境的系统和方法，其中环境映射过程与由一个或多个移动设备执行的定位处理分离。 在一些实施例中，增强现实系统包括具有用于映射特定现实世界环境和一个或多个移动设备的独立感测设备的映射系统。 一个或多个移动设备中的每一个利用单独的异步计算流水线来定位移动设备并从移动设备的角度呈现虚拟对象。 这种分布式方法提供了一种有效的方式来支持大量移动设备的映射和定位过程，这些移动设备通常受形状因素和电池寿命限制的限制。

公开(公告)号：US08077718B2

公开(公告)日：2011-12-13

申请号：US11203011

申请日：2005-08-12

申请人： Richard M. Mortier ,  Paul Barham ,  Rebecca Isaacs

发明人： Richard M. Mortier ,  Paul Barham ,  Rebecca Isaacs

IPC分类号： H04L12/28

CPC分类号： H04L41/042 ,  H04L41/0213 ,  H04L41/12 ,  H04L43/0811 ,  H04L45/02 ,  H04L45/44

摘要： Hosts or end-systems residing at the edges of a network gather data about the traffic they transmit into and receive from the network. The network's routing protocol (typically a link-state protocol such as OSPF) is monitored and routing data or packets are used to recover the network's current status and topology. This data can be collected, fused, and maintained and a platform, preferably distributed, can be provided to query the data, thus enabling a variety of network management applications.

摘要翻译： 驻留在网络边缘的主机或终端系统收集关于它们从网络发送和接收的流量的数据。 监控网络的路由协议（通常是链路状态协议，如OSPF），并使用路由数据或数据包来恢复网络的当前状态和拓扑。 可以收集，融合和维护该数据，并且可以提供优选分布的平台来查询数据，从而实现各种网络管理应用。