System and method for supporting real-time computing within general purpose operating systems

Patent 6466962 Issued on October 15, 2002. Estimated Expiration Date:

October 15, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

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Inventor

Bollella, Gregory

Application

No. 472365 filed on 06/07/1995

US Classes:

718/107, Multitasking, time sharing718/104Resource allocation

Examiners

Primary: Follansbee, John

Attorney, Agent or Firm

International Class

G06F 009/00

Abstract

A method of supporting real-time computing within a general purpose operating system, by supporting co-resident operating systems. This is a methodology for allowing existing, well-understood real-time systems technology to co-exist with commercial, general purpose operating systems to support applications such as desktop multimedia conferencing. The approach is to partition the central processor and other system resources into two virtual machines, first a machine running a largely unmodified general purpose operating system, and second a machine running a real-time kernel, then to multiplex access to the physical hardware by the virtual machines.