Scalable self-checking processing platform including processors executing both coupled and uncoupled applications within a frame
US8010846B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2009 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Oct 23, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1687
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems for a scalable self-checking processing platform are described herein. According to one embodiment, during an execution frame, a first processing element executes both a high-criticality application and a first low-criticality application. During that same execution frame, a second processing element executes both the high-criticality application and a second low-criticality application. The high-criticality application output from the first processing element is compared with that from the second processing element before the next execution frame, and a fault occurs when the output does not match. The low-criticality application is not duplicated or compared. This and other embodiments allow high-criticality applications to be appropriated checked while avoiding the over-dedication of resources to low-criticality applications that do not warrant self-checking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.