Data processing system with display terminals
Abstract
Data processing system comprising a processing unit (12) and a system bus (14) via which a display unit (eg 26) can be connected via a video adapter (24), wherein at least one of a plurality of video adapters is connected to the system bus (14) via a drive circuit (14). 20) is selectively connectable such that the respective in the same video address range, but in different periods on the system bus (14) occurring address, data and control signals via associated video adapter (24) to each other one of the screen units (26) for one of the processing unit (12) independent current representation are transferable.
Term
Term ended
Projected expiry passed 4 October 2011, 15 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
Every citation, both ways
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| US4884068A | Cites | United States of America | A | Search report |
| US4965559A | Cites | United States of America | AP | Search report |
3 priority claims, no other members on record
Priority claims3
| Document | Office | Kind | Date |
|---|---|---|---|
| 4032044 | Germany | A | |
| 4032044 | Germany | – | |
| DE19904032044 | – | – | – |
6 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Application deemed to be withdrawnWithdrawn18D | 18D | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA | STAA | |
| Designated contracting statesAK | AK | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | |
| Designated contracting statesAK | AK | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI |
Numbers
- Publication
- 0480331
- Publication, DOCDB
- 0480331
- Publication, EPODOC
- EP0480331
- Application
- 116966
- Application, DOCDB
- 91116966
- Application, EPODOC
- EP19910116966
Titles3
- English
- Data processing system with display terminals
- German
- Datenverarbeitungssystem mit Bildschirmeinheiten
- French
- Système de traitement de données avec terminaux d'affichage
Classification
- CPC, 1
- G06F3/1438
- IPC, 4
- G06F3 153
- G06F3 14
- G06F13 36
- G09G5 00
Designated states7
- Contracting states, 7
- Austria
- Switzerland
- Germany
- France
- United Kingdom
- Liechtenstein
- Netherlands (Kingdom of the)