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. 12, 1988
Filed:
Aug. 22, 1986
Ichirou Miyagawa, Kanagawa, JP;
Noboru Arai, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A synchronizing signal is generated in relation to the scanning of a recording medium with a scanning light beam emitted from a scanning light source and deflected by a light deflector. A synchronizing-signal generating laser beam is emitted from a synchronizing-signal generating laser source, and deflected by the light detector in synchronous relation to the deflection of the scanning light beam. The synchronizing-signal generating laser beam deflected by the light detector is applied back to the synchronizing-signal generating laser source at least once when the synchronizing-signal generating laser beam is deflected through a prescribed angle during one scanning cycle. A change in the output power of the synchronizing-signal generating laser source which is caused upon application of the synchronizing-signal generating laser beam back to the synchronizing-signal generating laser source, is detected for thereby generating the synchronizing signal.