Real-time software monitor and write protect controller
US4683532A · kind A · utility
40Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1984 |
| Grant date | Jul 28, 1987 |
| Priority date | — |
| Expiry date | Dec 3, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/0763
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Verification of proper operation of computer programs executing in a central processor and protection of critical data is accomplished by an independent software monitor which accepts data keys from the executing program and outputs defined legitimate codes in response thereto. Legitimate codes and selected portions of input data keys are compared to validate proper softward execution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.