Payment card financial validation processing center

Details Payment card financial validation processing center Payment card financial validation processing center

2007-10-20

2009-12-15

Frech, Karl D. (Department: 2887)

Registers

Systems controlled by data bearing records

Credit or identification card systems

C235S487000, C235S379000

Reexamination Certificate

active

07631804

ABSTRACT:
A method for validating a payment card financial transaction includes receiving a financial transaction approval request message derived from a payment card that is able to change its magnetic card data as elicited by a card reader. Out-of-sequence transactions encoded in a dynamic number included in said magnetic card data are detected. The dynamic number is compared with a last valid number that was previously stored in a database. An approval message is issued to enable the completion of a financial transaction with the payment card.

REFERENCES:
patent: 7543739 (2009-06-01), Brown et al.
patent: 2005/0247797 (2005-11-01), Ramachandran

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