Copyright protection in color thermal prints
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United States of America Patent
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Oct 13, 1998
Grant Date -
N/A
app pub date -
Feb 8, 1996
filing date -
Feb 8, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Disclosed is a copy protection method for identifying copied images that have been captured or generated in electronic form. The method generates information in electronic form for causing the printing of copy restrictive information as a plurality of contiguous pixels, of substantially yellow color onto the hard copy. The visibility of the yellow pixels is very low until a cyan illumination is applied to the protected image then the copy restrictive information becomes highly visible.
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Cited Art Landscape
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