Integrated circuit card
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United States of America Patent
Stats
-
Jan 15, 1991
Grant Date -
N/A
app pub date -
Feb 21, 1989
filing date -
Feb 20, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An integrated circuit (IC) card is provided with an external memory having a much larger memory capacity than that of a usual internal memory packaged inside the IC card together with a processor. The external memory can be managed only by the processor through an external IC card accepted by a terminal machine.
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