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:
Dec. 13, 1994
Filed:
Aug. 10, 1993
Chun-Yen Chen, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
An optical scanning system uses a multiple synchronizing sensing device to device a row of modulated signals into multiple blocks so that the effect of velocity jitter of a polygon scanning mirror is evenly distributed on each zone. In this manner, the influence of printing quality by the velocity jitter is reduced. For instance, the multiple synchronizing sensing device is provided with twenty sensing elements, the influence of the velocity jitter is lessened to be one twenth time as much as its original value. Therefore, the cost is greatly lowered by applying the system of the present invention to a high resolution optical scanning device which utilizes a polygon scanning mirror of less precision.