Data storage apparatus having memory area with a predetermined logic type
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United States of America Patent
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Jul 1, 1997
Grant Date -
N/A
app pub date -
Mar 22, 1994
filing date -
Mar 29, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
A data memory of an IC card is divided into a plurality of areas, a logic type used when data is written in each area is set, and the logical AND between the written data and stored data in the memory is calculated by an AND logic circuit and written in the memory. In read access, output data can be directly obtained from the memory.
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