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:
Sep. 06, 1988
Filed:
Sep. 26, 1984
Masahiro Tomosada, Kawasaki, JP;
Katsuyoshi Maeshima, Tokyo, JP;
Tsuneki Inuzuka, Machida, JP;
Hisashi Sakamaki, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image scanning apparatus has a reciprocating member for scanning a document, a first motor for driving the reciprocating member, a first detection circuit for detecting the speed of the first motor, a first control circuit associated with the detection circuit for rotating the motor at a speed to scan the document at a speed determined by a magnification factor, a recording medium, a second motor for driving the recording medium, a second detection circuit for detecting the speed of the second motor and a second control circuit associated with the second detection circuit for rotating the second motor at a speed determined by the magnification factor.