Patent · US Expired

Document reader

US4277689A · kind A · utility

62Cited by
1References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 12, 1979
Grant dateJul 7, 1981
Priority date
Expiry dateDec 12, 1999

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06V10/12
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

An optical character reader for conversion of information to a machine readable code from a strip of alpha-numeric characters on the face of a document. It includes an elongated document slot along which the document may be hand guided through a predetermined path. Optical viewing means is provided across a scan line intersecting the path of the alpha-numeric characters. A character scanning assembly electronically generates images of each character. Recognition processing means encodes these images into a machine readable code. All of the physical, optical and electronic components are contained within a compact single enclosure.

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