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:
Feb. 18, 1986
Filed:
Oct. 07, 1983
Nao Nagashima, Tokyo, JP;
Kouki Kuroda, Yokohama, JP;
Jyoji Nagahira, Tokyo, JP;
Yoshiaki Takayanagi, Kawasaki, JP;
Koji Suzuki, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image formation apparatus has detection signal generator for generating an analog detection signal, reference signal generator for generating an analog reference signal of a reference level, A/D converter for converting the analog signal into a digital signal, and controller for causing the detection signal to be input to the A/D converter and putting out a desired control signal and for causing the reference signal to be input to the A/D converter and determining the then magnitude of the digital signal to thereby detect abnormality of the A/D converter.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile