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:
Mar. 06, 1990
Filed:
Jul. 22, 1987
Applicant:
Inventors:
Howard H Barney, Berkeley, CA (US);
Kent S Johnson, Berkeley, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
382-1 ; 356404 ; 356418 ; 358 75 ; 358901 ; 382 56 ; 382 67 ;
Abstract
A color slide transparency scanner projects an intense stripe of light through a color slide. Red, green, and blue filters successively filter the stripe of image from the slide. In some applications, a neutral density filter adds still more information from dark areas of the slide image. A carriage carrying the slide moves across the light. A CCD array detects the filtered images and converts them to analog electrical signals. Circuitry converts the analog signals to digital.