IC card having fault checking function

Details IC card having fault checking function IC card having fault checking function

1986-06-03

1988-07-26

Atkinson, Charles E.

Excavating

371 25, G01R 3128

Patent

active

047605758

ABSTRACT:
Disclosed is an IC card having a fault check function comprising a ROM having test areas of the number corresponding to memory address lines so that predetermined various data necessary for executing a fault check are recorded in advance into the test areas, means for successively reading out the data previously recorded in the test areas, means for detecting coincidence of the respective data successively read out by the reading-out means with corresponding ones of said predetermined data previously recorded n the test areas, and means for making judgement as to whether a fault exists or not on the basis of a result of detection by the coincidence detecting means.

REFERENCES:
patent: 3579199 (1971-05-01), Anderson et al.
patent: 4319355 (1982-03-01), Mollier
patent: 4414665 (1983-11-01), Kimura et al.
patent: 4559626 (1985-12-01), Brown
patent: 4584663 (1986-04-01), Tanikawa

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