Patent · US Expired

Color image duplicating system

US4458265A · kind A · utility

18Cited by
7References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 17, 1981
Grant dateJul 3, 1984
Priority date
Expiry dateDec 17, 2001

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N1/603
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A color image duplicating device comprises a function generator (60) for generating a plurality of functions of n degree wherein elements of color separated data (201, 202, 203) from a color original (1) are variable, a storing device (66) for storing predetermined coefficients, and an arithmetic unit (61, 62, 63) for performing the calculation to find the product and sum of outputs from the function generator (60) and that of the storing device (66). An output from the arithmetic unit (61, 62, 63) is applied to a color recorder (3) to form a color duplicated image.

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