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. 14, 1993
Filed:
Oct. 08, 1992
Applicant:
Inventor:
Shih-Chung Chang, Hsinchu, TW;
Assignee:
Umax Data System Inc., Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
250226 ; 356418 ;
Abstract
A compact, high-speed, high resolution, low-cost color filter driver for use in a color optical reader. The image of a document is reflected through a cylindrical color filter assembly rotated by a motor, causing a charge coupled device to be exposed to the light three times (red, blue, green) as the motor was rotated through a half run, and the document scanning portion moves ahead for one step. The color image of the document is reproduced by repeating the aforesaid procedure again and again through the operation of the single color charge coupled device and the cylindrical color filter assembly.