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Payment system

  • US 20050033692A1
  • Filed: 04/08/2002
  • Published: 02/10/2005
  • Est. Priority Date: 04/06/2001
  • Status: Active Grant
First Claim
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1. An electronic transaction payment system comprising:

  • a vendor terminal associated with a vendor who provides goods or services to a purchaser;

    a vendor smart-card;

    a vendor smart-card reader for transmitting data to and receiving data from said vendor smart-card;

    a purchaser smart-card; and

    a purchaser smart-card reader for transmitting data to and receiving data from said purchaser smart-card;

    wherein said vendor terminal comprises;

    (i) means for processing requests for vendor goods or services from said purchaser;

    (ii) means for generating cost data identifying the cost of requested goods or services;

    (iii) means for interfacing with said vendor smart-card reader;

    (iv) means for interfacing with said purchaser smart-card reader; and

    (v) means for transmitting the cost data to said purchaser smart-card via said purchaser smart-card reader interface;

    wherein said purchaser smart-card comprises;

    (i) means for receiving said cost data from said vendor terminal;

    (ii) means for encrypting payment data to be transmitted to said vendor smart-card; and

    (iii) means 25 for outputting the encrypted payment data for transmission to said vendor smart-card; and

    wherein said vendor smart-card comprises;

    (i) means for receiving said encrypted payment data from said purchaser smart-card; and

    (ii) means for decrypting said encrypted payment data received from said purchaser smart-card to obtain payment for the requested goods or services.

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