Method and device for selecting the operating mode of an integrated circuit
US7325181B2 · kind B2 · utility
3Cited by
5References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 23, 2004 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Mar 30, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/07372
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device for selecting an operating mode of an integrated circuit, including a non-volatile memory programmable after manufacturing exhibiting prior to any programming an initial content, means for storing a first signature representative of the initial content of the memory, means for calculating a second signature representative of a current content of the memory, and means for evaluating a difference between the first and second signatures and for deactivating an operating mode selection signal when the difference is greater than a predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.