Method of writing information in a non-volatile memory

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United States of America Patent

PATENT NO 5850506
SERIAL NO

08556986

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Abstract

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Non-volatile memory cards in which the writing mechanisms are controlled by a microprocessor. To improve the coherence of the data elements recorded in the non-volatile memory files, the invention proposes to provide for a possibility of grouped control of several write operations (addition, updating or elimination of recordings). The successive operations are performed by the recording, in a non-volatile transaction space (TS), of the data elements corresponding to the state of the memory before each operation (especially former chainings (A7/16) of chained recordings). Then, a command for the comprehensive validation of the N operations, or on the contrary a command for comprehensive invalidation, is carried out, a validation or invalidation of individual operations being not permitted.

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Patent Owner(s)

Patent OwnerAddress
GEMPLUS CARD INTERNATIONALAVENUE DU PIC DE BERTAGNE PARC D'ACTIVITES DE LA PLAINE DE JOUQUES 13420 GEMENOS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gordons, Edouard Aubagne, FR 3 115

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