Method and apparatus for film anti-piracy

Details Method and apparatus for film anti-piracy Method and apparatus for film anti-piracy

2008-01-29

2008-01-29

Moazzami, Nasser (Department: 2136)

Cryptography

Electric signal masking

C380S211000

Reexamination Certificate

active

07324646

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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