Excavating
Patent
1981-09-23
1984-07-17
Atkinson, Charles E.
Excavating
371 57, G06F 1100
Patent
active
044609965
ABSTRACT:
A process for the prevention of the propagation of errors in a security processor having processing circuits which carry out arithmetic and logic operations on given operands, and detection devices for detecting single definite breakdowns occurring in these processing circuits in which single ambiguous breakdowns resulting in the weakening of a signal are detected by the detection of the single definite breakdowns, by using signal interpreting circuits which make the weakened signals definite, whether or not correct. In addition, definite or ambiguous breakdowns of these interpreting circuits are also detected by the detection devices.
REFERENCES:
patent: 3548175 (1970-12-01), Tomlin
patent: 3581075 (1971-06-01), Mattsson
patent: 3586968 (1971-06-01), Barjot
patent: 3716834 (1973-02-01), Adams
patent: 4320512 (1982-03-01), Richman
de Langre Bruno
Fourre Remy D.
Atkinson Charles E.
Societe d'Etudes et Conseills A E R O(Automation-Electronique-Re
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