Patent · US Expired

Portable electronic copying machine

US5051838A · kind A · utility

118Cited by
5References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 22, 1989
Grant dateSep 24, 1991
Priority date
Expiry dateJun 22, 2009

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N2201/0438
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An electronic copying machine comprises an optical image forming system for forming an optical image of a remote surface on an image plane, and an image sensor disposed in the image plane and transversely movable in the image plane for scanning the optical image and converting the image into image signals. A scanning area defining device defines the height of the image sensor so as to scan the image plane according to the height of the remote surface. An image printing unit including a printing head is driven according to the image signals for printing an image on paper.

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