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:
Jun. 09, 1987
Filed:
Nov. 30, 1984
Eiichi Yoshida, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image processing apparatus comprising a detector for reading out image information on an original placed on an original glass plate and detecting an area of the original, and a microcomputer for detecting a concentration level regarding the main-scan line of the image information in the original area read out by the detector and operating a threshold value for a binary coding process regarding the main-scan line of the image information on the basis of the concentration level. By changing the threshold level, the background noise eliminating process can be performed even if the background level varies. Thus, even if an original is unevenly placed on the original glass plate, the background noise eliminating process can be executed in the whole area of the original image.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile