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:
Apr. 27, 2010
Filed:
Jun. 09, 2005
Applicant:
Keiichi Iwamura, Kanagawa-ken, JP;
Inventor:
Keiichi Iwamura, Kanagawa-ken, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); H03M 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention aims to be able to provide an efficient public key digital watermark method which is specialized to information common to contents. In the method, arrangement order of digital data in input digital contents is set to become predetermined arrangement order so that the input digital contents constitute an error correction code.