VIDEO IMAGE DISPLAY SCREEN, VIDEO IMAGE DISPLAY SYSTEM, AND METHOD FOR DETECTING CAMERA USED IN ILLEGAL CAMCORDING
First Claim
Patent Images
1. A video image display screen comprising:
- a video image display section that displays a video image;
a non-visible light emission part that projects light other than visible light, together with the video image, toward an observer; and
a non-visible light detection section that detects the light other than visible light reflected by a camcorder owned by the observer.
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Accused Products
Abstract
Provided is a technique for easily detecting a person who attempts illegal camcording, by using device(s) that removes non-visible light as an anti-camcording interference image from a video image containing the non-visible light. A video image display system includes: a screen that displays a video image; an infrared ray emitting unit that projects infrared rays together with the video image toward an observer; and an infrared ray camera that detects infrared rays reflected by a video camera owned by the observer. The infrared ray camera particularly detects reflection light from an infrared ray cut filter attached to the video camera of the observer.
50 Citations
24 Claims
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1. A video image display screen comprising:
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a video image display section that displays a video image; a non-visible light emission part that projects light other than visible light, together with the video image, toward an observer; and a non-visible light detection section that detects the light other than visible light reflected by a camcorder owned by the observer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 16, 17, 18, 19, 21)
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13-15. -15. (canceled)
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20. (canceled)
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22. A detection method for detecting a camcorder for camcording a video image displayed on a video image display screen, the method comprising the steps of:
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projecting light other than visible light, together with the video image displayed on the video image display screen, toward an observer; and detecting presence/absence of a camcorder by detecting an intensity of the light other than visible light reflected by the camcorder owned by the observer. - View Dependent Claims (23)
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24. A video image display system comprising:
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a video image display section that displays a video image; and a non-visible light emission part that projects light other than visible light, together with the video image, toward an observer, wherein the non-visible light emission part projects light, while changing a region irradiated with the light.
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Specification