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Method and arrangement for generating and checking a security imprint

  • US 5,712,916 A
  • Filed: 11/07/1996
  • Issued: 01/27/1998
  • Est. Priority Date: 12/21/1993
  • Status: Expired due to Term
First Claim
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1. A method for producing a security imprint in a postage meter machine, comprising the steps of:

  • generating a franking imprint by said postage meter machine as said security imprint;

    including a mark symbol sequence in said franking imprint in the form of an encoded combination number including a first number, a second number and a third number;

    locating said first, second and third numbers at respective, predetermined places within said combination number;

    assigning a respective contextual meaning to each of said first, second and third numbers; and

    evaluating said encoded combination number to extract said contextual meaning of each of said first, second and third numbers therein.

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