Terminal with interchangeable application module
US4326193A · kind A · utility
78Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1979 |
| Grant date | Apr 20, 1982 |
| Priority date | — |
| Expiry date | Sep 12, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2223/028
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A CRT terminal includes a main unit which houses circuitry and the CRT display. An application module which includes a keyboard plugs into the front of the main unit and electrically connects to its circuitry. A flexible membrane keyboard is employed which includes a keyboard overlay that is easily changed to provide keyboard symbols appropriate to a wide variety of different applications. Resilient bumpers extend completely around the main unit to facilitate its use in industrial applications where physical abuse is common.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.