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. 06, 2009
Filed:
Aug. 25, 2004
Applicant:
Shinsuke Hayashida, Tochigi, JP;
Inventor:
Shinsuke Hayashida, Tochigi, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A radiographic method and apparatus determine the presence/absence of an afterimage and notify a user to erase the afterimage only when it is necessary instead of erasing the afterimage every time radiography is executed. An FPN image is obtained before radiography and uniformity of the values of pixels contained in the FPN image is determined by using the values of the pixels contained in the FPN image.