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.
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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