Registers – Records
Patent
1986-02-18
1988-07-19
Cardillo, Raymond F.
Registers
Records
235492, 235380, 34082532, G06K 1906, G06K 500
Patent
active
047587180
ABSTRACT:
A high security and rewritable IC card has a microprocessor, a memory, and a keyboard. The memory has a password registration area, an error counter area in which the number of occurrences of an error in inputting a password is stored, and a card information area. The microprocessor controls a password registration operation, registers the password inputted through the keyboard in the password registration area. When the registered password is to be updated, the microprocessor clears the password registration area in the memory to allow writing of a new password only when the microprocessor detects that a password data inputted by a card user matches the registered password and the error count in the error counter is no more than a predetermined count.
REFERENCES:
patent: 3731076 (1973-05-01), Nagata et al.
patent: 3761683 (1973-09-01), Rogers
patent: 3971916 (1976-07-01), Moreno
patent: 4007355 (1977-02-01), Moreno
patent: 4092524 (1978-05-01), Moreno
patent: 4102493 (1978-07-01), Moreno
patent: 4207555 (1980-06-01), Trombly
patent: 4341951 (1982-07-01), Benton
patent: 4439670 (1984-03-01), Basset et al.
patent: 4575621 (1986-03-01), Dreifus
patent: 4614861 (1986-09-01), Pavlov et al.
Fujisaki Kunio
Iwanaga Akiko
Cardillo Raymond F.
Hitachi , Ltd.
Weinhardt Robert A.
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