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Method and apparatus for securing and authenticating encoded data and documents containing such data

  • US 7,725,726 B2
  • Filed: 08/20/2007
  • Issued: 05/25/2010
  • Est. Priority Date: 02/15/1996
  • Status: Expired due to Fees
First Claim
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1. A method of authenticating a token, comprising:

  • detecting a data point representing an element of the data stored on the token;

    determining a location of the data point on the token;

    determining a reference location for the data point on the token;

    comparing the determined location with the reference location to determine whether the token is authentic; and

    authenticating the token if the determined location is within a predetermined range of distances from the reference location.

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