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:
Oct. 09, 2012
Filed:
Sep. 28, 2007
Isao Echizen, Kawasaki, JP;
Takaaki Yamada, Kawasaki, JP;
Nobuharu Miura, Tokyo, JP;
Michiro Maeta, Tokyo, JP;
Takashi Mizuno, Tokyo, JP;
Isao Echizen, Kawasaki, JP;
Takaaki Yamada, Kawasaki, JP;
Nobuharu Miura, Tokyo, JP;
Michiro Maeta, Tokyo, JP;
Takashi Mizuno, Tokyo, JP;
Abstract
Regularity information such as time codes embedded preliminarily through an electronic watermark is detected from a predetermined number of pieces of continuous frame data of video content through the electronic watermark. In the case where the electronic watermark is not detected from the predetermined number of pieces of continuous frame data, a non-detection count is calculated, and falsification of the predetermined number of pieces of frame data is determined on the basis of the detected regularity information and the non-detection count. Accordingly, falsification such as deletion, addition, and replacement of video content is detected with high accuracy using the electronic watermark.