Process for monitoring a data processing unit and a system for performing the process
US4813042A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1987 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | Feb 9, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/277
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing unit monitoring device produces a first type of information and a second type of information in a data processing unit. A first troubleshooting device external to the data processing unit has a sequence network for producing a third type of information in response to receipt of the first type of information from the data processing unit a plurality of times. The third type of information is then transferred to a comparator for comparing the third type of information with other, predetermined information in response to receipt of the second type of information from the data processing unit, whereby to perform a test function. A process for monitoring a data processing unit thus produces a first type of information and a second type of information in a data processing unit for a test thereof. A sequence network external to the data processing unit is updated with the first type of information a plurality of times to provide a third type of information, and the third type of information and other, predetermined information are compared in response to the second type of information for monitoring the data processing unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.