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:
May. 16, 1989
Filed:
Aug. 23, 1988
Katsuhito Dei, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image processing apparatus includes an image signal generator for generating an image signal, an edge detector for detecting an edge of the image signal, a triangle wave generator for generating a reference signal, a multiplier or subtracting circuit for modulating the reference signal on the basis of a detection output from the edge detector and outputting a modulated reference signal, and a comparator for processing the image signal from the image signal generator by using the modulated reference signal and for generating a pulse width modulated signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile