Detector circuit for detecting an external manipulation of...

Static information storage and retrieval – Read only systems – Fusible

Reexamination Certificate

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Details

C365S064000, C365S112000, C365S241000, C365S154000

Reexamination Certificate

active

07969763

ABSTRACT:
A detector circuit for detecting an external manipulation of an electrical circuit. The detector circuit includes a digital circuit which is sensitive to at least one of the effects of ionizing radiation or fluctuations of a supply voltage, and the output state of the digital circuit is indicative of an attack.

REFERENCES:
patent: 3731119 (1973-05-01), Matzen
patent: 4043321 (1977-08-01), Soldner et al.
patent: 4413327 (1983-11-01), Sabo et al.
patent: 5159629 (1992-10-01), Double et al.
patent: 7042752 (2006-05-01), Okuda
patent: 197 41 178 A 1 (1998-12-01), None
patent: 10 2004 020 870 (2005-11-01), None
patent: 0785623 (1997-07-01), None

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