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. 13, 2023
Filed:
Aug. 04, 2020
Nxp B.v., Eindhoven, NL;
Bernd Uwe Gerhard Elend, Hamburg, DE;
NXP B.V., Eindhoven, NL;
Abstract
A security module for a CAN node includes a RXD input interface for receiving data from a CAN bus, TXD output interface for transmitting data to the CAN bus, and a RXD output interface for providing data to a local controller. The security module is configured to receive a CAN frame from the CAN bus. The CAN frame includes a CAN message. The security module is also configured to compare an identifier of the received CAN frame with at least one identifier associated with the local controller; and upon detection of a match between the identifier of the received CAN frame and the at least one identifier associated with the local controller: pass the CAN message to the local controller via the RXD output interface; decouple the local controller from the CAN bus; and invalidate the CAN message on the CAN bus via the TXD output interface.