Patent · US Expired

Picture data processing device

US4558374A · kind A · utility

33Cited by
5References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 11, 1983
Grant dateDec 10, 1985
Priority date
Expiry dateMay 11, 2003

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N1/38
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A picture data processing device in which a region specifying original having markings which physically define a region of interest of an original document to be processed is read and stored. When the original document is read, the stored markings are reproduced to mask out the areas of the original document other than the region of interest. A signal processing operation, such as extraction, rearrangement, or size alteration with respect to the selected region can then be performed.

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