Registers – Systems controlled by data bearing records – Credit or identification card systems
Reexamination Certificate
2007-09-18
2007-09-18
Le, Thien M. (Department: 2876)
Registers
Systems controlled by data bearing records
Credit or identification card systems
C235S375000, C235S487000
Reexamination Certificate
active
11064052
ABSTRACT:
A process for managing an electronic transaction with a trader by use of a microprocessor chip card and of a reading terminal able to interact with the card. The card performs a first comparison where it compares a transaction amount with a first threshold value and instigates a bearer authentication procedure when this amount is above the first threshold. When the amount of the transaction is below the first threshold, the chip card performs a second comparison where it compares with a second threshold value an incremented value of a first counter. The first counter being an aggregate of small amounts counter and being successively incremented by values of amounts of transaction in cases where the amounts are below the first threshold. A procedure for authenticating the bearer of the card is instigated by the card depending on the result of this second comparison.
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Darbour Bernard
De Solages Aymeric
Remery Patrick
Cohen Pontani Lieberman & Pavane LLP
France Telecom
Labaze Edwyn
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