Patent · US Expired

Apparatus and process for color-identification

US4110826A · kind A · utility

33Cited by

8References

21Claims

0Family size

Assignee

Dr. Ing. Rudolf Hell GmbH · DE

Inventors

Klaus Mollgaard · Kiel, DE
Hans Keller · Zürich, CH
Ulrich Sendtko · Kiel, DE
Rudiger Sommer · Kiel, DE

Key dates

Filing date	Oct 1, 1976
Grant date	Aug 29, 1978
Priority date	—
Expiry date	Oct 1, 1996

Classification

Technology area (CPC G)Physics
CPC primaryG01J3/513
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A process for the identification of a predetermined plurality of colors on the surface of an object which is scanned by electrical-optical means to produce measured signals substantially representing the colors red, green, and blue coordinates, the plurality of colors defining color-regions, and defining color-identification-regions, wherein the boundaries of the identification-regions are simulated electronically through threshold-value circuits for each of the coordinates, the output signals of which are transferred to coincidence circuits, which indicate the presence of one of the plurality of colors when the coordinates of the color signals lie within the color-identification-region.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.