NASA NTRS · 19950065175
Self-Checking Pairs Of Microprocessors
Abstract
Method 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.
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Smith, Brian S.. 1995-01-01. Self-Checking Pairs Of Microprocessors. https://ntrs.nasa.gov/citations/19950065175
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