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:
Nov. 26, 1996
Filed:
Jun. 22, 1995
Keiji Kataoka, Ibaraki, JP;
Susumu Saito, Ibaraki, JP;
Shuuho Yokokawa, Ibaraki, JP;
Satoshi Aita, Ibaraki, JP;
Muneyoshi Akai, Ibaraki, JP;
Shigeo Nemoto, Ibaraki, JP;
Isao Nakajima, Ibaraki, JP;
Hitomi Shimizu, Ibaraki, JP;
Kunitomo Takahashi, Ibaraki, JP;
Youji Hirose, Ibaraki, JP;
Hitachi Koki Co., Ltd., Tokyo, JP;
Abstract
A simple optical recorder which permits alignment of scanning positions of a plurality of laser beams with high accuracy and effects optical recording using the laser beams. The optical recorder is provided with a photosensitive drum which is scanned by a plurality of laser beams formed in rows at an inclined angle with respect to the direction of scan, a single photosensor for sensing each of the sweep positions of the laser beams, and a controller for controlling the scanning positions of the laser beams on the basis of a sensing result of the sensor. The controller is made up of an optical sensing signal separation circuit, synchronous clock generation circuits, FIFO memory circuit elements, and OR circuits.