Chip card comprising means and method for managing a virtual memory and associated communication method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Feb 3, 2004
Grant Date -
N/A
app pub date -
Dec 15, 1999
filing date -
Apr 15, 1998
priority date (Note) -
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status (Latency Note)
Importance
Abstract
The invention relates to a chip card (21) including an information processing means and main information storage means, which operates to load and unload a programmable memory as a function of the need for the program run by the card and for applicative data. The processing means comprises a means for detecting, during the operation of the chip card, that the main storage means contain a quantity of information such that the execution of an operation is not possible. The chip card also includes a means for selecting, in the main storage means, a set of information (K) to be unloaded. The unloading of the set of information (K) releases enough space in the main storage means to allow the execution of the operation. Also included is a means for unloading the set of information (K) to be unloaded into secondary storage means (23 through 25), in the event that the secondary storage means does not contain the set of information to be unloaded.
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