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:
Dec. 30, 2025
Filed:
Nov. 21, 2022
GM Cruise Holdings Llc, San Francisco, CA (US);
Christopher Valasek, Pittsburgh, PA (US);
Charles Miller, St. Louis, MO (US);
GM CRUISE HOLDINGS LLC, San Francisco, CA (US);
Abstract
Malicious users (or hackers) can take advantage of user devices on or communicably connected to an autonomous vehicle (AV) to gain unauthorized access to AV subsystems (e.g., AV compute system, AV sensors, AV controls system, and AV cabin system). To address this concern, a one-way Ethernet communication link can be placed between the AV subsystems and the user devices. The one-way communication link can physically ensure that the user devices may only receive content from the AV systems, and that the user devices may not send data to the AV systems on the one-way communication link. A feature-limited backchannel that may be normally used for transporting audio data on a daisy-chained bus can be used by the user devices to transmit (8-bit) code words that correspond to specific messages to convey messages back to the AV systems.