Fault recovering system provided in highly reliable computer system having duplicated processors
US5748873A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1996 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Jul 26, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1679
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A highly reliable computer system is intended to duplicate processors, compare the outputs of the processors with each other and enhance the validity of the output of processor system. If a mismatch between the outputs is detected, one of the processors performs a process of saving an internal state of the processor in amain memory and diagnosing factor of the detected mismatch. If the process is recognized to be continued in a duplex mode, the processors are re-synchronized by a processor reset, and initialize themselves and restore the internal information saved in the main memory for continuing the process having been proceeded before the fault occurred.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.