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:
Jul. 06, 2021
Filed:
Oct. 13, 2017
Garrett Transportation I Inc., Torrance, CA (US);
Thomas R. Markham, Fridley, MN (US);
Alexander Chernoguzov, Warrington, PA (US);
GARRETT TRANSPORTATION I, INC., Torrance, CA (US);
Abstract
An authentication system having a communications bus, a transmitter connected to the bus, and a receiver connected to the bus. A physical layer signal may be applied by the transmitter to a message on the bus for authenticating the transmitter. The physical layer signal may incorporate an identifier (ID) of the transmitter. The receiver may receive the message and decode the physical layer signal on the message. Decoding the physical layer signal on the message may reveal the ID of the transmitter sending the message. The receiver may look up the ID on a list of IDs corresponding to transmitters approved to send the message, to determine whether the ID of the transmitter sending the message matches an ID on the list. Only if the ID of the transmitter matches an ID on the list, then the transmitter may be authenticated and authorized to send the message.