Patent · US Expired

Image signal processing apparatus

US5267055A · kind A · utility

12Cited by
5References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 12, 1991
Grant dateNov 30, 1993
Priority date
Expiry dateSep 12, 2011

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N1/401
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An image processing apparatus has an image sensor for inputting image data obtained by reading an image, a shading correction processing unit for correcting variations in image data input from the image sensor on the basis of correction data, an arithmetic operation processing unit for performing image processing of the image data input from the image sensor, and a memory for storing the correction data to be supplied to the shading correction processing unit and image data to be supplied to the arithmetic operation processing unit.

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