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. 03, 2007
Filed:
Sep. 07, 2005
Tomoyuki Miyashita, Tokyo, JP;
Tomoyuki Miyashita, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Although a copying machine which has finally output a forged print can be specified by the forgery tracking function, a copying machine which has output an original used for copying or a scanner used to read the images of bills or securities cannot be specified. For this purpose, history information embedded in input image data is extracted. When the history information is extracted, information unique to the apparatus is added to the history information. When no history information is extracted, history information containing information unique to the apparatus is generated. The generated or updated history information is embedded in the image data.