Method and system for monitoring microprocessor integrity

Details Method and system for monitoring microprocessor integrity Method and system for monitoring microprocessor integrity

2005-04-19

2005-04-19

Iqbal, Nadeem (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S048000

Reexamination Certificate

active

06883121

ABSTRACT:
A system and method for enhancing the integrity of a system which uses a high performance, low assurance, general purpose microprocessor to execute an avionics software application and uses a high assurance, low performance microprocessor to monitor the output of the general purpose microprocessor, without the need for comparison of outputs from parallel processors executing functionally equivalent versions of the avionics software application. The monitoring microprocessor is used to analyze state transitions of the first microprocessor and to analyze the computed values output by said general purpose microprocessor, against predetermined limitations based upon aircraft limitations.

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Printed page of website address as follows: http://www.ajile.com.
Co-pending patent application Docket No. 00CR029/KE entitled “Method And Apparatus For High Assurance Computing Using Virtual Machines On General Purpose Computing Resources” filed on an even date, inventor D. Greve.

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