Graphics display with improved window organization
US4598384A · kind A · utility
41Cited by
5References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1983 |
| Grant date | Jul 1, 1986 |
| Priority date | — |
| Expiry date | Apr 22, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/14
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display system has a driver program for displaying alphanumeric characters and a driver program for displaying graphics. When a graphics window is opened, a program in the operating system establishes a control block containing a code that has been made unique within the user's program. For operations within a window, a function packet is passed to the appropriate driver. The operations are identified by the unique code and several independent windows can be created.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.