Patent · US Expired

Electronic camera

US4466021A · kind A · utility

3Cited by
5References
10Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 21, 1982
Grant dateAug 14, 1984
Priority date
Expiry dateSep 21, 2002

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N1/40056
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An electronic camera for producing a video signal corresponding to a document or the like that is moved past a linear array of CCD sensors (1). The camera output is indicated as valid only when a document is being scanned with a predetermined number of lines determined by a counter (47-49). A time delay is invoked between documents to prevent fragmentary scanning. A pulse amplifier (20-24) having a wide frequency band and very low impedance drives the CCD sensors at a high rate.

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