Patent ID: 7006630

Claim:
A content protection system for digital cinema comprising: a first protection layer having a camera detector including at least two surveillance cameras configured to detect recording devices within a theater using automatic pattern recognition; a second protection layer having a near infrared signal projector and a strong signal embedder together configured to embed an imperceptible recording device visible copy mark in a recorded copy of digital content being displayed in the theater; and a third protection layer having a watermark generator and a watermark embedder, the watermark embedder provided in conjunction with a digital cinema movie projector and, in combination with the watermark generator, are together configured to embed an imperceptible recording device invisible watermark in the digital content displayed in the theater by the digital cinema movie projector, wherein a location of a detected recording device producing the recorded copy is used by at least one of said second or third protection layers to specifically target the recording device by generating at least one of the electronic copy mark or the electronic watermark as a function of the location.