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Transaction processing system

  • US 4,877,947 A
  • Filed: 07/30/1987
  • Issued: 10/31/1989
  • Est. Priority Date: 08/05/1986
  • Status: Expired due to Term
First Claim
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1. A transaction processing system using a prepaid microchip card, comprisinga customer'"'"'s microchip card in which a balance is recorded,a vendor'"'"'s microchip card in which a balance is recorded,a terminal means for exchanging data between said customer'"'"'s microchip card and said vendor'"'"'s microchip card, for inputting the amount of a transaction, for instructing the customer'"'"'s microchip card to perform the deduction, and for instructing the vendor'"'"'s microchip card to perform the addition, said terminal means including a first terminal having a vendor'"'"'s microchip card reader/writer disposed therein for communicating with said vendor'"'"'s microchip card, and a second terminal which is electrically coupled to said first terminal for exchange of data therebetween, said second terminal having a customer'"'"'s microchip card reader/writer disposed therein for communicating with said customer'"'"'s microchip card,said customer'"'"'s microchip card having a function of authentication of said second terminal, andsaid vendor'"'"'s microchip card having a function of authentication of said first terminal,wherein a transaction is processed by deducting the amount of the transaction from the balance in the customer'"'"'s microchip card and adding said amount to the balance in the vendor'"'"'s microchip card, andsaid transaction processing is performed after the authentication by the customer'"'"'s microchip card and the vendor'"'"'s microchip card.

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