Electronic transaction systems and methods therefor

  • US 6,175,922 B1
  • Filed: 03/13/2000
  • Issued: 01/16/2001
  • Est. Priority Date: 12/04/1996
  • Status: Expired due to Term
  • ×
    • Pin
First Claim
Patent Images

1. A method for approving a transaction request between an electronic transaction system and a portable electronic authorization device carried by a user using an electronic service authorization token, comprising steps of:

  • receiving at the portable electronic authorization device first digital data representing the transaction request;

    providing information to the user regarding an ability to approve the transaction request; and

    when the transaction request is approved by the user, receiving at the portable electronic authorization device second digital data representing the electronic service authorization token.

View all claims