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:
May. 19, 2009
Filed:
Feb. 01, 2007
Kitahiro Kaneda, Kanagawa, JP;
Keiichi Iwamura, Kanagawa, JP;
Ken-ichi Ohta, Kanagawa, JP;
Yoshihiro Ishida, Kanagawa, JP;
Shinichi Kato, Kanagawa, JP;
Junichi Hayashi, Kanagawa, JP;
Jun Tamaru, Tokyo, JP;
Takami Eguchi, Tokyo, JP;
Kitahiro Kaneda, Kanagawa, JP;
Keiichi Iwamura, Kanagawa, JP;
Ken-ichi Ohta, Kanagawa, JP;
Yoshihiro Ishida, Kanagawa, JP;
Shinichi Kato, Kanagawa, JP;
Junichi Hayashi, Kanagawa, JP;
Jun Tamaru, Tokyo, JP;
Takami Eguchi, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
It is required to protect the copyrights and the like of partial images which form respective parts of an image obtained by reading an image, exchanged using a print as a medium, by an image scanner or the like. Input image data is divided into a plurality of image regions having different features, digital watermarks, which are embedded in the detected image regions by embedding methods corresponding to the features of the image regions, are extracted, and the availability of the input image is checked on the basis of the extracted digital watermarks.