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:
Jan. 22, 1991
Filed:
Apr. 26, 1989
Applicant:
Inventor:
Hitoshi Arai, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358448 ; 358458 ; 358298 ;
Abstract
An image processing apparatus in which a digital image signal is produced and characteristics thereof are converted, e.g., gradation-processed. The result of this processing is used to produce a pulse-width-modulated signal, which is used for image formation. Image forming conditions are detected and the processing is controlled in accordance with the result of such detection.