Active protection device for protecting circuit against mechanical and electromagnetic attack
US7656630B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 11, 2005 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Aug 2, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D84/01
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
For protecting a circuit (1) against a mechanical or electromagnetic attack, an active protection device attached to the circuit comprises: —at least one generator (13, 14) for generating a magnetic field, —at least one magnetic sensor S1, S2, S3, S4 for measuring a value of the magnetic field, —an integrity circuit connected to the at least one magnetic sensor S1, S2, S3, S4 and to the circuit (1). The integrity circuit activates a reaction procedure in the circuit if the measured value of the magnetic field made by the magnetic sensor is out of a values domain, the values domain being correlated to the generated magnetic field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.