File management system for memory card
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United States of America Patent
Stats
-
Mar 4, 1997
Grant Date -
N/A
app pub date -
Dec 9, 1994
filing date -
Dec 10, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In an IC card using a file management system for performing data management of a plurality of files obtained by dividing a data memory, when selection is performed to allow use of the file, discrimination ID information representing that each file is already selected is provided to each file. In accessing a file, the provided discrimination ID information is added to each access command to designate a specific access, and a file serving as an access target is recognized on the basis of the designated discrimination ID information, thereby accessing the file.
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