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Self-Checking Pairs Of MicroprocessorsMethod of imparting fault tolerance to computer system provides for immediate detection of faults at microprocessor level. Shadow microprocessor provides nominal duplicate outputs to verify functioning of main microprocessor. When output signal on any pin of one microprocessor differs from that on corresponding pin of other microprocessor, comparator puts out alarm signal.
Document ID
19950065175
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Smith, Brian S.
(NASA Goddard Space Flight Center, Greenbelt, MD.)
Date Acquired
August 17, 2013
Publication Date
January 1, 1995
Publication Information
Publication: NASA Tech Briefs
Volume: 19
Issue: 1
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
GSC-13626
Accession Number
95B10016
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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