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:
Oct. 05, 1993
Filed:
Aug. 05, 1992
Applicant:
Inventors:
Kenneth A Parulski, Rochester, NY (US);
Gordon Geisbuesch, East Rochester, NY (US);
John C Rutter, Rochester, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358500 ; 358475 ; 358 42 ;
Abstract
This abstract describes an apparatus for providing accurate white balance for images from a color sequential image scanner while minimizing the object illumination level. A shutter synchronized to the phase of a fluorescent light source allows for different exposure times for the red, green and blue image captures, in order to achieve proper white balance while maximizing the signal to noise ratio. By synchronizing the shutter with the AC voltage supplied to the illumination source, light level variations from one image capture to another are minimized.