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US 9,311,583 B2Granted
Barcode copy protection system
AssigneeDocument Security Systems, Inc.
InventorsNicole Acton, Michael Caton, Patrick White, David Wicker
Life of this patent
Estimating the term…
Abstract
A copy protection system for barcode includes a barcode pattern that is printed together with a security pattern that includes a line screen that intersects elements of the barcode pattern. A difference in print density between the barcode elements and the security pattern is sufficient to allow the barcode pattern to be read by a barcode scanner. However, upon reproduction of the printed barcode pattern and security pattern by a copier, the barcode pattern is not similarly readable on the resulting reproduction.
Claims11
A copy protection system comprising:
- a barcode pattern including a plurality of barcode elements printed on a printable surface at a print density less than 90 percent;
- a security pattern printed on the printable surface at a print density between 10 percent and 30 percent;
- a background pattern printed on the printable surface wherein the background pattern is a repeated geometric design such that when the printable surface is imaged the background pattern and the security pattern distort at least one of the plurality of barcode elements;
- and
- wherein the security and background patterns are positioned to intersect an edge of at least one of the plurality of barcode elements.
2 more elements
A method comprising:
- printing, on a printable surface, a barcode pattern including a plurality of barcode elements at a print density less than 90 percent;
- printing a security pattern on the printable surface at a print density between 10 percent and 30 percent,
- printing a background pattern on the printable surface wherein the background pattern is a repeated geometric design such that when the printable surface is imaged the background pattern and the security pattern distort at least one of the plurality of barcode elements;
- and
- wherein the security and background patterns are positioned to intersect an edge of at least one of the plurality of barcode elements.
2 more elements
Dependencies are inferred from the claim text.