| 摘要 |
A system for credit/debit card use that requires the user to associate a PIN code with the account number on the card prior to carrying out a financial transaction. A vendor code and a unique transaction code are automatically associated with the card when the user identifies the PIN code. A credit/debit card (12) with magnetizable memory fields (20, 22, 24, 26) on the card carry a "permanent" imprint of the account number and a rewritable imprint of the PIN code, the vendor code and the transaction code. At the time of a financial transaction, the appropriate PIN code, vendor code, and a unique transaction code are imprinted on the card magnetically and are carried with the account number to a card reader (16) wherein the codes are read and transmitted by electronic linkage (42) to a central card database (18).
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