Barcode copy protection system
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United States of America Patent
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-
Apr 12, 2016
Grant Date -
Dec 5, 2013
app pub date -
Mar 15, 2013
filing date -
May 31, 2012
priority date (Note) -
In Force
status (Latency Note)
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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.
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