Patent · US Expired

Apparatus for digitizing optical images

US4257071A · kind A · utility

13Cited by
8References
10Claims
0Family size

Inventor

Key dates

Filing dateJul 9, 1979
Grant dateMar 17, 1981
Priority date
Expiry dateJul 9, 1999

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N1/19505
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A linear array of optical sensing elements is moved transversely to the relative motion of an optical image such that each element can sense the optical density of pixels over which is passes, and such that all pixels in each of successive rasters across the image are sensed by at least one optical sensing element. The linear array of optical sensing elements may be combined with a linear array of printing elements in a single moving head to share components and thus to reduce cost of a facsimile transceiver.

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