IC card having fault checking function
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United States of America Patent
Stats
-
Jul 26, 1988
Grant Date -
N/A
app pub date -
Jun 3, 1986
filing date -
Jun 4, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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