Integrated circuit for memorizing and processing information confidentially, including an anti-fraud device
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United States of America Patent
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Jul 25, 1989
Grant Date -
N/A
app pub date -
Nov 6, 1987
filing date -
Nov 7, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An integrated circuit for memorizing and processing information confidentially, which includes a device for controlling access to its own functions, intended to receive a confidential code, and a time delay circuit imparting a minimum predetermined delay between two attempts at introducing a confidential code even in the event of a power cut of the circuit between attempts.
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