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:
Jun. 21, 2022
Filed:
Nov. 18, 2019
Silicon Laboratories Inc., Austin, TX (US);
Jeffrey Lee Sonntag, Austin, TX (US);
Timothy Thomas Rueger, Austin, TX (US);
Silicon Laboratories Inc., Austin, TX (US);
Abstract
In one form, an integrated circuit includes a plurality of electromagnetic fault injection (EMFI) sensors and a security management circuit. Each EMFI sensor includes a sense loop having a conductor around a corresponding portion of logic circuitry whose operation is affected by an electromagnetic pulse, and a detector circuit coupled to the sense loop and having an output for providing a pulse detection signal in response to a pulse of at least a predetermined magnitude. The security management circuit performs a protection operation to secure the integrated circuit in response to an activation of a corresponding pulse detection signal of one of the plurality of EMFI sensors.