Alphanumeric display means for computer-linked typewriter consoles
US3934245A · kind A · utility
12Cited by
5References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 5, 1973 |
| Grant date | Jan 20, 1976 |
| Priority date | — |
| Expiry date | Nov 5, 1993 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/969
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an alphanumeric display unit means for improving the identification quantities at selected key buttons of a computer-linked typewriter console through usage of light-emitting identification indicia attached adjacent to or at the selected key buttons. Each light-emitting display is in matrix format consisting of a set of fiber optic members arranged in orthogonal rows and columns. Encoding is via stencil tab means inserted in the path of light generated by incandescent bulb means in operational alignment with each set of fiber optic members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.