The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 02, 2021
Filed:
Nov. 19, 2018
Boe Technology Group Co., Ltd., Beijing, CN;
Jiaxing Sec-view Information Technology Co., Ltd, Zhejiang, CN;
Yingyi Li, Beijing, CN;
Kairan Liu, Beijing, CN;
Wenbo Li, Beijing, CN;
Lin Zhu, Beijing, CN;
Guangtao Zhai, Zhejiang, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
JIAXING SEC-VIEW INFORMATION TECHNOLOGY CO., LTD, Zhejiang, CN;
Abstract
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.