公开(公告)号：US6115027A

公开(公告)日：2000-09-05

申请号：US28172

申请日：1998-02-23

申请人： Ming C. Hao ,  Joseph S. Sventek ,  Dongman Lee

发明人： Ming C. Hao ,  Joseph S. Sventek ,  Dongman Lee

IPC分类号： G06F3/023 ,  G06F3/038 ,  G06F3/0489 ,  G06F3/14

CPC分类号： G06F3/038 ,  G06F3/04892 ,  G06F3/1454

摘要： A non-intrusive cursor synchronization system is described that does not change or modify the existing system or application. The cursor synchronization system is used for synchronously displaying a cursor on a plurality of display systems connected together via a network without requiring database or shared memory. The cursor synchronization system includes a plurality of agents, each being coupled to one of the display systems to cause the respective display system to display a consistent cursor movement, and to trigger concurrent execution among a number of existing applications. The cursor synchronization system also includes a cursor synchronizer that captures and compresses the cursor movement generated from one of the display systems within a time interval that is adjustable based on the speed at which the user moves the cursor. The cursor synchronizer synchronously sends the compressed cursor movement to each of the agents such that the cursor movement is synchronously displayed on each of the display systems with minimized network traffic through the network. A method for synchronously displaying a cursor on a plurality of display systems connected together via a network is also described.

摘要翻译： 描述了不改变或修改现有系统或应用的非侵入式光标同步系统。 光标同步系统用于在不需要数据库或共享存储器的情况下经由网络在连接在一起的多个显示系统上同步显示光标。 光标同步系统包括多个代理，每个代理被耦合到一个显示系统，以使相应的显示系统显示一致的光标移动，并触发多个现有应用之间的并发执行。 光标同步系统还包括光标同步器，其基于用户移动光标的速度在可调整的时间间隔内捕捉并压缩从显示系统之一产生的光标移动。 光标同步器同步地将压缩的光标移动发送到每个代理，使得光标移动通过网络以最小化的网络流量同步显示在每个显示系统上。 还描述了通过网络连接在一起的多个显示系统上同步显示光标的方法。

公开(公告)号：US5828866A

公开(公告)日：1998-10-27

申请号：US676762

申请日：1996-07-08

申请人： Ming C. Hao ,  Joseph S. Sventek

发明人： Ming C. Hao ,  Joseph S. Sventek

IPC分类号： G06F15/16 ,  G06F9/46 ,  G06F15/177 ,  G06F17/50 ,  H04M3/56

CPC分类号： G06F9/542 ,  H04M3/567

摘要： A synchronization system includes a motion event synchronizer and multiple application encapsulators which operate together to synchronize motion events operating in replicated multi-dimensional non-modified 3-D existing applications. The application encapsulators compress one or more user generated motion events together and then send the compressed motion events to the motion event synchronizer. The motion event synchronizer multi-casts the motion event to each of the application encapsulators in the synchronization system. The application encapsulators and the motion event synchronizer conduct a two-phase lock-step acknowledge and download enable protocol that ensures each application is downloaded with the same motion event at the same time. To ensure simultaneous motion event viewing at each user site, the application encapsulators interleave spacer events between adjacent motion events.

摘要翻译： 同步系统包括运动事件同步器和多个应用封装器，其一起操作以同步在复制的多维未修改的3-D现有应用中操作的运动事件。 应用封装器将一个或多个用户生成的运动事件压缩在一起，然后将压缩的运动事件发送到运动事件同步器。 运动事件同步器将运动事件多播到同步系统中的每个应用程序封装器。 应用程序封装器和运动事件同步器执行两阶段锁步骤确认和下载使能协议，确保每个应用程序同时以相同的运动事件下载。 为了确保在每个用户站点同时进行运动事件查看，应用程序封装器在相邻运动事件之间交替间隔事件。

公开(公告)号：US06330685B1

公开(公告)日：2001-12-11

申请号：US09273843

申请日：1999-03-22

申请人： Ming C. Hao ,  Michael E. Goss ,  Joseph S. Sventek

发明人： Ming C. Hao ,  Michael E. Goss ,  Joseph S. Sventek

IPC分类号： G06F1100

CPC分类号： G06F11/0751 ,  G06F11/0739 ,  G06F11/0748 ,  G06F11/08

摘要： A system for and method of graphic consistency verification for a replicated network having a plurality of existing applications. The system includes a graphic consistency autochecker and a plurality of application encapsulators. One encapsulator is distributed to and operates with each application. Each encapsulator includes an event tracker, an image catcher, and a signature calculator. The method includes the steps of receiving and multicasting input events from the user of one of the applications, capturing a graphic image from each of the applications, calculating an image signature for each graphic image, comparing all image signatures for consistency, and correcting any discrepancy when at least one of the applications has an inconsistent image signature before executing the next input event.

摘要翻译： 用于具有多个现有应用的复制网络的图形一致性验证的系统和方法。 该系统包括图形一致性自动检查器和多个应用封装器。 一个封装器被分配到每个应用程序并且与每个应用程序一起工作。 每个封装器包括事件跟踪器，图像俘获器和签名计算器。 该方法包括以下步骤：从应用程序之一的用户接收和组播输入事件，从每个应用程序捕获图形图像，计算每个图形图像的图像签名，比较所有图像签名的一致性，以及校正任何差异 当至少一个应用程序在执行下一个输入事件之前具有不一致的图像签名。

公开(公告)号：US06314453B1

公开(公告)日：2001-11-06

申请号：US09251367

申请日：1999-02-17

申请人： Ming C. Hao ,  Joseph S. Sventek ,  Todd M. Spencer ,  Alan H. Karp

发明人： Ming C. Hao ,  Joseph S. Sventek ,  Todd M. Spencer ,  Alan H. Karp

IPC分类号： G06F1300

CPC分类号： G06F9/542 ,  G06F2209/546 ,  G06Q10/10 ,  H04L67/1095

摘要： A system for and method of sharing and executing inaccessible dynamic processes in replicated architecture networks to ensure that local activities are executed concurrently at remote workstations in a shared server-client network without the need for application modification in the system. The invention provides for sharing and executing inaccessible dynamic existing processes for replica consistency among multiple applications in the shared network. The invention provides for use at each workstation an application encapsulator having a listener to observe input events representative of process state changes. Each encapsulator also includes a mapper that operates with an associator for creating hierarchial tree structures to provide concurrent execution among all participant workstations. The invention uses a replica when an accessible process becomes inaccessible for multicasting input events to all participant workstations to maintain replica consistency among the plurality of applications. The invention is preferably used in engineering systems that include 3-D CAD/CAM graphical intensive applications and selectively with text/spreadsheet applications.

摘要翻译： 在复制架构网络中共享和执行不可访问的动态进程的系统和方法，以确保在共享服务器 - 客户端网络中的远程工作站上并行执行本地活动，而无需系统中的应用程序修改。 本发明提供共享和执行在共享网络中的多个应用之间的复制一致性的不可访问的动态存在过程。 本发明提供了在每个工作站处使用具有监听器的应用程序封装器来观察表示进程状态改变的输入事件。 每个封装器还包括映射器，其与关联器一起操作，用于创建分层树结构以在所有参与者工作站之间提供并发执行。 当可访问进程变得不可访问时，本发明使用副本，以便向所有参与者工作站多播输入事件以维持多个应用程序之间的副本一致性。 本发明优选用于包括3-D CAD / CAM图形密集型应用程序和选择性地具有文本/电子表格应用程序的工程系统中。

公开(公告)号：US06535975B1

公开(公告)日：2003-03-18

申请号：US09417375

申请日：1999-10-13

申请人： Dean R. Thompson ,  Patrick Goldsack ,  Graham S. Pollock ,  Joseph S. Sventek

发明人： Dean R. Thompson ,  Patrick Goldsack ,  Graham S. Pollock ,  Joseph S. Sventek

IPC分类号： G06F1582

CPC分类号： G06F9/44505 ,  Y10S707/99945 ,  Y10S707/99948 ,  Y10S707/99952 ,  Y10S707/99953

摘要： A configuration system for an application having a plurality of application components is described. The configuration system includes a configuration oracle/initiator that repeatedly asserts a desired state to the application components to operate in that desired state. The desired state is a predetermined state. The configuration oracle only asserts the desired state to the application components and does not control the manner in which each of the application components moves to the desired state. The configuration system also includes a configuration engine in each of the application components that causes the corresponding application components to move to the desired state upon receiving the state assertion of the desired state unless the configuration engine determines that the corresponding application component is already in the desired state. A method of configuring an application having a large number of application components is also described.

摘要翻译： 描述具有多个应用组件的应用的配置系统。 配置系统包括配置oracle /启动器，该配置oracle /启动器重复地向应用组件确定期望状态以在该期望状态下操作。 期望状态是预定状态。 配置oracle仅向应用程序组件断言所需的状态，并且不控制每个应用程序组件移动到所需状态的方式。 配置系统还包括在每个应用组件中的配置引擎，其使相应的应用组件在接收到期望状态的状态断言之后移动到所需状态，除非配置引擎确定相应的应用组件已经处于期望状态 州。 还描述了配置具有大量应用组件的应用的方法。