Patent · US Expired

Color image reading apparatus or color image forming apparatus capable of performing color adjustment

US5142356A · kind A · utility

31Cited by
14References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 7, 1991
Grant dateAug 25, 1992
Priority date
Expiry dateNov 7, 2011

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N1/6022
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A color copying machine includes a reading unit for reading a color original, a correction unit for performing color correction processing of a color image signal read by the reading unit, an image forming unit for forming a color image based on a correction output from the correction unit, and a setting unit for setting a correction characteristic of the color correction processing based on the color image signal read by the reading unit. The color copying machine is thereby able to compensate for differences in and/or changes of the color characteristics of the reading unit or the image forming unit.

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