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AssigneeMaxiVision Cinema Technology
InventorsDean K. Goodhill, Ty Safreno
Estimating the term…
A method and apparatus to inhibit the piracy of motion pictures in theaters by taking advantage of the frame rate discrepancies between film (or digital) display and video camcorders. By alternating specific image display intervals and, shuttering cadences, or with digital video projectors commanding a similar modified display via the digital projector's blanking and display capabilities, so that the projected images occur in a random and/or phase shifted manner, objectionable distortions are produced in an illicitly captured video image, while being invisible to theatrical viewers. In addition, various serrated, slit, multi-quadrant or spotted patterns may be used on mechanical shutters, or simulated on digital displays, to further degrade the quality of illicitly captured video by pirates in theaters.
A method of inhibiting the piracy of a motion picture including displayed images, the method configured to cause a camera used for illicit recording of the motion picture to at least one of capture intervals of darkness or miss some of the displayed images of the motion picture, the method comprising:
In a motion picture projector, a controller that commands the projector to display an image for an interval, to follow said display by an interval of darkness, and to selectively changes the intervals of image display and the intervals of darkness.
Dependencies are inferred from the claim text.