The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 06, 2001
Filed:
Feb. 17, 1999
Ming C. Hao, Palo Alto, CA (US);
Joseph S. Sventek, Oakland, CA (US);
Todd M. Spencer, Ft. Collins, CO (US);
Alan H. Karp, Palo Alto, CA (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
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.