Dynamic generation and overlaying of graphic windows for multiple active program storage areas
US4555775A · kind A · utility
539Cited by
10References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 7, 1982 |
| Grant date | Nov 26, 1985 |
| Priority date | — |
| Expiry date | Oct 7, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/14
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A graphic terminal is disclosed using bitmaps to represent plural overlapping displays. Graphics software is also disclosed in which the overlapping asynchronous windows or layers are manipulated by manipulating the bitmaps. With this software, the physical screen becomes several logical screens (layers) all running simultaneously, any one of which may be interacted with at any time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.