Patent · US Expired

Fixed format message entry device with electronic storage and editing

US4001814A · kind A · utility

2Cited by
5References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 21, 1975
Grant dateJan 4, 1977
Priority date
Expiry dateMay 21, 1995

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F3/0238
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A fixed format message entry device employs a solid state memory for storing data. A portable keyboard is provided to input data to a display that is packaged with the keyboard and associated electronics. The display is comprised of an array of light emitting diodes operating with fiber optics. Overlay cards have openings, through which the light emitting diodes pass. Printed codes appear on the cards, next to respective fiber optics thus facilitating the interpretation of a display, by an operator.

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