Method and device for the management of transactions using micro

Details Method and device for the management of transactions using micro Method and device for the management of transactions using micro

1991-01-28

1993-07-13

Pitts, Harold

Registers

Systems controlled by data bearing records

Banking systems

235380, 235492, 902 26, G06F 1530

Patent

active

052276120

ABSTRACT:
The method for the management of transactions in a system including card readers and the associated microcircuit cards consists in organizing the memory of the cards, designed for the recording of the transactions, in two zones, one zone that is accessible through the presenting of the bearer code at each transaction, for the transactions involving sums above a predetermined value, the other zone being accessible for the transactions involving sums that are below the predetermined value, without any systematic presenting of the bearer's code: a presenting of the bearer's code commands the writing of opening bits of recording spaces in this second zone until the number of open spaces is equal to N which is a predetermined value. The disclosed method can be applied, notably, to credit cards, telephone cards and multiple-use cards.

REFERENCES:
patent: 4001550 (1977-01-01), Schatz
patent: 4859837 (1989-08-01), Halpern

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