Arrangement for protecting an electronic card and its use for pr

Details Arrangement for protecting an electronic card and its use for pr Arrangement for protecting an electronic card and its use for pr

1992-09-28

1993-08-24

Harrell, Robert B.

Boots, shoes, and leggings

3642731, 3642466, 3649187, 364969, 364DIG1, 364DIG2, 380 4, G06F 126, G06F 1214

Patent

active

052396649

ABSTRACT:
The present invention relates to an arrangement for protecting an electronic card and to its use for protecting a terminal for reading a magnetic card and/or a microprocessor card. An arrangement for protecting a card including, on a printed circuit, an electronic circuit with volatile memory (12) containing programs or information to be protected, characterized in that it includes a resistive network (21, 22) surrounding the circuit (1) embedded in the resin (3), the resistive network (21, 22) being incorporated in an electronic circuit (10) for detecting modifications to the resistance of the network, to bring about a destruction of the information of the volatile memories (12).

REFERENCES:
patent: 4360727 (1982-11-01), Lehmann
patent: 4523297 (1985-06-01), Ugon et al.
patent: 4593384 (1986-06-01), Kleijne
patent: 4691350 (1987-09-01), Kleijne et al.
patent: 4783801 (1988-11-01), Kaule
patent: 4811288 (1989-03-01), Kleijne et al.
patent: 4849927 (1989-07-01), Vos

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