Integrated circuit for the confidential storage and processing o

Details Integrated circuit for the confidential storage and processing o Integrated circuit for the confidential storage and processing o

1987-06-10

1989-03-14

Fears, Terrell W.

Static information storage and retrieval

Powering

Data preservation

365206, 365207, 371 21, 371 67, G11C 1300

Patent

active

048130249

ABSTRACT:
A fraud-preventive device for a memory card comprising an EPROM type or similar non-volatile memory designed to receive confidential authorization data as well as the results, wrong or otherwise, of tests on the authorization data, comprises a single simulation cell designed to record the non-erroneous results, this cell consuming the same current as a memory cell, which has never been programmed, of the memory part designed to record the wrong data.

REFERENCES:
patent: 4211919 (1980-07-01), Ugon
patent: 4295041 (1981-10-01), Ugon

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