Patent ID: 6334575
Filing Date: 2002-01-01
Classification: G06Q,G07F

Abstract:
A safety transaction method of using a credit card to make a transaction, comprising the steps of:(1) calling a bill built in a PDA, personal digital assistant, in a PDFA, portable data & financing assistance, main unit; (2) inputting the amount consumed; (3) inserting a shop data identification card of the shop in which the transaction is to be done, and then reading the data of the inserted shop data identification card and then inputting the data of the inserted shop data identification card automatically or by labor; (4) removing the inserted shop data identification card from said PDFA main unit, and then inserting the personal data credit card of the consumer, and then clicking a quick-dial key to connect to the financial center who issues the shop data identification card through a wireless communication module of said PDFA main unit; and (5) inputting the consumer's fingerprint, so as to complete the transaction after recognition of the inputted fingerprint by a finger print module of said PDFA main unit.