Method and apparatus for film anti-piracy
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United States of America Patent
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Jan 29, 2008
Grant Date -
N/A
app pub date -
Jun 9, 2000
filing date -
Oct 29, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus is disclosed for introducing alterations or distortions in projected images. The distortions on the projected image are imperceptible to a human viewer. The distortions are recorded on recording devices and observable upon viewing the recorded images.
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Cited Art Landscape
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