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.

Date of Patent:
Aug. 11, 2015

Filed:

Mar. 18, 2011
Applicant:

Kumiko Tadano, Tokyo, JP;

Inventor:

Kumiko Tadano, Tokyo, JP;

Assignee:

NEC CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06K 9/18 (2006.01); G06F 21/16 (2013.01);
U.S. Cl.
CPC ...
G06F 21/16 (2013.01);
Abstract

A digital content management system () includes: a digital watermark embedding device () which generates embedding information uniquely determined from identification information for tracking use, and embeds a digital watermark into a digital content to be managed, based on the thus-generated embedding information; a digital watermark detection device () which generates the tracking information uniquely determined from identification information for verification use, and detects the digital watermark in a digital content to be verified based on the thus-generated tracking information; and a verification device () which verifies the identification information for verification use supposed to be used for verifying the digital content to be verified in which the digital watermark was detected.


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