Method for tamper-proofing magnetic stripe card reader

Details Method for tamper-proofing magnetic stripe card reader Method for tamper-proofing magnetic stripe card reader

1980-04-08

1982-03-30

Kilgore, Robert M.

Registers

Coded record sensors

Particular sensor structure

235437, 235477, 360 1, G06K 708, G06K 1300, G11B 500, G06K 500

Patent

active

043226132

ABSTRACT:
A method for inhibiting tampering with data on a magnetic stripe card is disclosed. The data are erased if the card is prematurely withdrawn from the reader/writer. A write protect bit is set and recorded on the card if the power source is interrupted. Apparatus for activating the tamper-proofing techniques are disclosed.

REFERENCES:
patent: Re28701 (1976-01-01), Edwards
patent: 3356021 (1967-12-01), May
patent: 3976857 (1976-08-01), Hogberg
patent: 4176259 (1979-11-01), Lee
patent: 4237375 (1980-12-01), Granholm

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