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. 22, 1981
Filed:
Apr. 30, 1980
Frank D Sundermeyer, Middletown, CT (US);
Stephen E Niemczyk, Enfield, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
A color identification circuit for use in identifying color samples received by a color raster scanner from a multicolor cartographic source chart includes a plurality of color limit comparators, one for each spectral parameter data channel of the sampled color element, each limit comparator including for each resident color on the source chart, the range of spectral values for the spectral parameter associated therewith, the range of values for each parameter representing the variations in the same color as obtained through color measurement samples taken from the source chart prior to actual data raster scanning; the output identification of a defined color spectral parameter from each limit comparator being presented to a color encoder, the color encoder identifying a unique color in dependence on the spectral parameter identification signals from each of the color limit comparators.