×

Dynamic number authentication for credit/debit cards

  • US 7,606,771 B2
  • Filed: 01/11/2002
  • Issued: 10/20/2009
  • Est. Priority Date: 01/11/2001
  • Status: Expired due to Fees
First Claim
Patent Images

1. A token for conducting commercial transactions comprising:

  • a power source;

    a memory storing a unique set of predetermined random numbers and software, when executed causes the token to perform the steps of;

    selecting and dispensing an unused number from the set of predetermined random numbers, wherein the set of random numbers is identical to a set of numbers stored in an external authentication system;

    a plurality of buttons wherein each button is assigned a unique account identification number representing an account for conducting a commercial transaction, and said buttons for selecting and dispensing a previously unused number from the set of random numbers using the software; and

    displaying means for displaying the dispensed numbers and said unique account identification numbers.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×