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:
Jul. 28, 1987
Filed:
Jun. 04, 1986
Applicant:
Inventors:
Wahei Tokuda, Tokyo, JP;
Atushi Takagi, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
355 / ; 355 / ;
Abstract
A image recording apparatus capable, in the measurement of the background density of an original image, of detecting and omitting an area exceeding a determined width and a determined density in the determination of the background density, thus avoiding incorrect reproduction of background density. A signal output is provided upon detection of image density past the determined width, and the detected image density data is corrected in response to that signal output.