Method of and apparatus for controlling a display
US4794388A · kind A · utility
40Cited by
4References
36Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 12, 1982 |
| Grant date | Dec 27, 1988 |
| Priority date | — |
| Expiry date | Feb 12, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05G9/047
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Information presented on a visual display is varied in content and size through the use of a single operator-manipulated input device. The foregoing is accomplished through the use of a novel command signal generator which includes a pivotally mounted rotatable shaft, high-resistance switches operatively associated with the shaft and logic circuitry responsive to command signals provided by the switches and by shaft rotation sensors for generating display control signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.