Digitally watermarking holograms
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United States of America Patent
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Jan 15, 2013
Grant Date -
Feb 23, 2006
app pub date -
Mar 23, 2005
filing date -
Apr 16, 1998
priority date (Note) -
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Abstract
The present invention relates generally to digital watermarking holographic structures. One method recites: creating a computer model; executing a transform domain iterative method to convert the computer model into a holographic structure; combining a digital watermark with the holographic structure; and conveying the combined digital watermark and holographic structure to a surface. Other combinations are provided and claimed as well.
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Cited Art Landscape
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