Intellectual Valley Law, P.C.
Video displaying method, video displaying apparatus, and computer-program product
A video displaying method. The method includes applying a first frequency modulation in time domain on an original video thereby obtaining a first modulated video; applying a second frequency modulation in spatial domain on the first modulated video thereby obtaining a second modulated video including a first invisible-light image; and displaying the second modulating video with a corresponding frame rate. A time-domain frequency of the first invisible-light image is in a first range unrecognizable by a naked eye and recognizable by a video recorder. A spatial-domain frequency of the first invisible-light image is in a second range unrecognizable by the naked eye and recognizable by a video recorder.
JIAXING SEC-VIEW INFORMATION TECHNOLOGY CO., LTD BOE TECHNOLOGY GROUP CO., LTD.
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additional inventional inventional additional
Wenbo Yingyi Lin Guangtao Kairan
Li Li Zhu Zhai Liu