Multi-channel redundant processing systems
US4665522A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1985 |
| Grant date | May 12, 1987 |
| Priority date | — |
| Expiry date | Jan 28, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/184
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A multi-channel redundant processing system having tightly synchronized redundant processor channels wherein one or more additional processors are connected to each of the redundant channels, the redundant outputs being supplied to such additional processors to permit different processing operations to be performed on such redundant outputs. A selected number of added processors can perform the same processing operations and the processed outputs can be supplied to the redundant processor channels to establish a selected degree of reliability while one or more other added processors can be used to perform other processing operations on the redundant outputs in a non-redundant manner. Further, such added processors can be used to detect software programs fault situations in which multiple versions of software programs are used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.