Patent · US Expired

Arrangement for color detection in map-plotting or other printed materials

US4474470A · kind A · utility

5Cited by

4References

3Claims

0Family size

Inventors

Udo Brandt · Hanau, DE
Christhard Deter · Hermsdorf, DE

Key dates

Filing date	Jan 29, 1981
Grant date	Oct 2, 1984
Priority date	—
Expiry date	Jan 29, 2001

Classification

Technology area (CPC H)Electricity
CPC primaryH04N1/486
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The invention relates to an arrangement for color detection when evaluating printed materials, maps or the like in that a color pattern under investigation is arranged substantially in the plane of a reference color pattern and both being cyclicly detected by an opto-electronic detection unit. The detector, itself consists of only one opto-electronic transducer comprising a plurality of detecting faces which receive the color informations from an illumination source reflected at both color patterns. The opto-electronic transducer is followed by an evaluation electronic means which compares the reference color pattern and the investigated color pattern and associates the respective patterns.

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