The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 02, 2010
Filed:
Jul. 11, 2005
Béatrice Bonvalot, Meudon Cedex, FR;
Claude Fermon, Orsay, FR;
Myriam Pannetier, Gif sur Yvette, FR;
Béatrice Bonvalot, Meudon Cedex, FR;
Claude Fermon, Orsay, FR;
Myriam Pannetier, Gif sur Yvette, FR;
Commissariat a l'Energie Atomique, Paris, FR;
Axalto SA, Meudon, FR;
Abstract
For protecting a circuit () against a mechanical or electromagnetic attack, an active protection device attached to the circuit comprises: —at least one generator () for generating a magnetic field, —at least one magnetic sensor S, S, S, Sfor measuring a value of the magnetic field, —an integrity circuit connected to the at least one magnetic sensor S, S, S, Sand to the circuit (). 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.