Secure checking of the exclusivity of an active/passive state of processing units
US8671312B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2009 |
| Grant date | Mar 11, 2014 |
| Priority date | — |
| Expiry date | Nov 7, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2025
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a method and a device for securely checking the exclusivity of a binary active/passive state of redundant units, the device includes: at least one exclusive communication device of the state capable of transmitting an exclusive signal relating to the exclusivity of the state to at least one checking device integrated within each of the units. The checking device is capable of checking and confirming the exclusivity of the state. Each of said redundant units in the active state is capable of transmitting to the exclusive communication device the identity signal; the exclusive communication device is capable of receiving at least one of the identity signals from the redundant units; the exclusive communication signal is capable of producing the exclusive signal from at least one of the identity signals; and the checking device is capable of determining the exclusivity of the state of the unit by reading the exclusive signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.