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Method for automatically reading electronic tickets

  • US 6,538,757 B1
  • Filed: 05/19/2000
  • Issued: 03/25/2003
  • Est. Priority Date: 05/19/2000
  • Status: Expired due to Term
First Claim
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1. A method for printing and reading electronic tickets, comprising the steps of:

  • printing a graphic field on the ticket that will change in appearance when the ticket is either reproduced by either scanning/printing and/or photocopying, reading the graphic field while storing characteristics of printing settings that are printed on a ticket in the form of a bar code of a printer that printed the graphic field; and

    interpreting the graphic field to determine whether or not the graphic field has been reproduced by scanning/printing and/or photocopying wherein the interpreting step further includes the steps of;

    calculating ideal minimum and maximum ideal density values for the printer that printed the graphic field;

    comparing the calculated values with the read values; and

    determining if the read values are between the minimum and maximum ideal density values.

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