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:
Sep. 01, 2020
Filed:
Apr. 10, 2019
Fescaro Co., Ltd., Daejeon, KR;
FESCARO CO., LTD., Daejeon, KR;
Abstract
A CAN controller safe against a CAN-communication-based hacking attack includes each CAN controller that filters a message to be transmitted to a CAN bus. A corresponding CAN controller filters only a message having a valid transmission ID to be transmitted. The CAN controller safe includes a transmission buffer, a transmission filter unit, a protection memory and a filter value setting unit. The transmission buffer unit temporarily stores transmission data to be transmitted to a CAN bus. The transmission filter unit has message IDs allowed to be transmitted as a transmission filter, configured to search for a message ID of the transmission data in the transmission filter, and filter the transmission data. The protection memory stores one or more filter values of the transmission filter and the filter value setting unit is configured to fetch the filter value stored in the protection memory.