Device and method for protecting an electronic system against unauthorized access
US8621657B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 2009 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Mar 6, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K5/0208
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to an electronic system comprising a printed circuit contained in a package. The system comprises a protection device comprising conducting tracks carried by the printed circuit and each having a free end; a first integrated circuit connected to the conducting tracks and adapted for detecting a variation in the capacitance seen by each conducting track; and a second integrated circuit, optionally merged with the first integrated circuit, comprising a configurable memory for selecting certain of the conducting tracks. The second integrated circuit is adapted for determining that an authorized or unauthorized access has occurred on the basis of the detection of the variation of the capacitance seen by at least one of the selected conducting tracks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.