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:
Mar. 13, 2001
Filed:
May. 08, 1997
Applicant:
Inventors:
Nobuatsu Sasanuma, Yokohama, JP;
Hiroshi Tanioka, Yokohama, JP;
Shinobu Arimoto, Yokohama, JP;
Kazuo Yoshinaga, Machida, JP;
Toshio Hayashi, Kawasaki, JP;
Takehiko Nakai, Tokyo, JP;
Tsutomu Utagawa, Yokohama, JP;
Tetsuya Nagase, Kawasaki, JP;
Yoshiki Uchida, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 1/40 ;
U.S. Cl.
CPC ...
H04N 1/40 ;
Abstract
An image processor includes a first reader which obtains a first signal corresponding to visible information read on an original, and a second reader which obtains a second signal corresponding to invisible information on the original. A comparator compares the first and second signals to discriminate a predetermined pattern on the original.