Microprocessor system for safety-critical control systems
US6201997A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 7, 1998 |
| Grant date | Mar 13, 2001 |
| Priority date | — |
| Expiry date | Apr 7, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1044
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A microprocessor system intended for safety-critical control systems includes two synchronously operated central units (1, 2) which receive the same input data and process the same program, in addition, read-only memories (5, 10) and random-access memories (6, 11) for useful data and test data, and comparators (18, 19) which check the output signals of the central units (1, 2) and issue disconnecting signals in the event of non-correlation. The central units (1, 2) are connected to the memories and the input and output units by way of separate bus systems (3, 4) and coupled by driver stages (15, 16, 17) which enable the central units (1, 2) to jointly read and process the data available in the two bus systems (3, 4). A microprocessor system intended for safety-critical control systems includes two synchronously operated central units which receive the same input data and process the same program, in addition, read-only memories and random-access memories for useful data and test data, and comparators which check the output signals of the central units and issue disconnecting signals in the event of non-correlation. The central units are connected to the memories and the input and o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.