Roll-up method for a display unit
US4196430A · kind A · utility
14Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 19, 1978 |
| Grant date | Apr 1, 1980 |
| Priority date | — |
| Expiry date | Jan 19, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/343
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A roll-up method for a display unit according to this invention consists of supplying data for designating a roll-up region to a roll-up address counter to designate an address for a refresh memory storing a character display data portion and a control data portion and modifying the contents of said address counter to modify the stored information of said refresh memory in a fly-back time of the display unit by means of a roll-up instruction, thereby rolling up said region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.