×

Imaging prevention method and system

  • US 6,827,454 B2
  • Filed: 06/04/2003
  • Issued: 12/07/2004
  • Est. Priority Date: 05/16/2001
  • Status: Expired due to Fees
First Claim
Patent Images

1. An imaging prevention method for interfering unauthorized imaging of a number of visual images projected on a screen, characterized bydirectly projecting infrared light to a viewer/audience side from at least one or more infrared light projector means;

  • said at least one or more infrared light projector means being disposed in a near proximity or close proximity of the screen;

    whereby enabling said infrared light to be directly incident into imaging means performing an unauthorized copying act so as to adversely affect the unauthorized copying operations thereof.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×