Method for securing the display on a screen of mimic diagrams representing the status of a system
US5608868A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 16, 1996 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Jan 16, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/88
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a method for securing the display on a screen of a workstation of mimic diagrams reflecting the status of a system connected to the workstation, a first counter is maintained in the system and a second counter is maintained in the workstation. The system periodically transmits to the workstation image data defining a mimic diagram reflecting the current status of the system, together with the first counter and a signature. In response, the workstation displays on the screen a mimic diagram based on the image data received and calculates a test value conditioned by the first and second counters, this value providing a basis for detecting a display error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.