Data processing: financial – business practice – management – or co – Automated electrical financial or business practice or... – Including point of sale terminal or electronic cash register
Patent
1997-10-21
2000-02-08
Poinvil, Frantzy
Data processing: financial, business practice, management, or co
Automated electrical financial or business practice or...
Including point of sale terminal or electronic cash register
705 17, 705 44, 380 23, 380 24, G06F 1760
Patent
active
060236825
ABSTRACT:
A method and apparatus for credit card purchase authorization includes using a credit card validation unit to transmit to a credit card company computer a purchase amount, a credit card number and a purchase token comprising both the purchase amount and credit card number which are encrypted using the user's personal identification code as a key. The transmission can be made by a wireless communications device, such as a cellular telephone or PCS communications device. The credit card company computer creates a test token by encrypting the received credit card number and purchase amount using a stored user's personal identification code number as a key. The test token is then compared to the purchase token. If the test token corresponds to the purchase token, the purchase is considered to be authorized.
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AT&T Corporation
Morgan George D.
Poinvil Frantzy
LandOfFree
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