Supervision of transactions with chip cards

Details Supervision of transactions with chip cards Supervision of transactions with chip cards

1996-10-25

1998-06-23

Pitts, Harold

Registers

Systems controlled by data bearing records

Credit or identification card systems

235379, 902 26, G06K 500

Patent

active

057708444

ABSTRACT:
A transaction audit system is disclosed comprising a chip card, for completing a transaction between the holder of the chip card and a transaction partner such as a merchant. During the transaction, a transaction identifier is generated uniquely identifying the transaction. For completing execution of the transaction by posting of the payment amount to the merchants account, the chip card transmits a transaction receiver data record comprising the transaction identifier, and further data, if required, to a third party. To allow auditing the transaction settlement posting accuracy, the transaction provider also transmits a transaction provider data record comprising the corresponding transaction identifier to the third party. The third party is then able compare the receiver data record and the provider data record and identify possible irregularities, such as possible errors or manipulations in the transaction system, or intentional or non-intentional manipulation by the participants to the transaction, particularly the transaction receiver. The transaction identifier identifies both the transaction receiver data record and the transaction provider data record as being data records belonging to the same transaction.

REFERENCES:
patent: 3852571 (1974-12-01), Hall et al.

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