Data display control system with plural refresh memories
US4200869A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1978 |
| Grant date | Apr 29, 1980 |
| Priority date | — |
| Expiry date | Feb 14, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/222
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data display control system for displaying respective data memorized in a plurality of refresh memories which is operable in various display modes including a selective picture display, a superimposed picture display and a shifting picture display. Individual data memorized in respective refresh memories contain each a display control bit adapted to determine whether or not the individual data are to be displayed on the screen. The data display control system reads out from the respective refresh memories a data information to be picture-displayed and only when the contents of a display control bit contained in the data information designate a display, it converts this data information into a video signal for a picture display. The contents of the display control bit are changeable for individual data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.