Card interface for interfacing a host application program to data storage cards
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United States of America Patent
Stats
-
Apr 10, 2001
Grant Date -
N/A
app pub date -
May 27, 1998
filing date -
May 9, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A card reader/writer which interfaces between a host application program and a data storage card. The card reader/writer reads from and writes to the application program with high level language of the commands. The card reader/writer translates the high level language commands of the host program to corresponding sequences of low level commands for reading and writing to the data storage card. The card reader/writer stores a plurality of sets of such low level commands, and is able to establish the card type for any card interfaced with the card reader/writer, and to use the appropriate command set for the established card type. The card reader/writer also translates low level commands from the card to high level commands for the host application program. The card reader/writer can be loaded with low level command sets for additional card types as required.
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