Renesas Electronics had 11 patents in cybersecurity during Q2 2024. The patents filed by Renesas Electronics Corp in Q2 2024 focus on securing communication between ECUs by securely transmitting CAN protocol frames, as well as managing secret information in a semiconductor device using an OTP module, security module, and processor to ensure key information can be invalidated and the system cannot be started. GlobalData’s report on Renesas Electronics gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Renesas Electronics had no grants in cybersecurity as a theme in Q2 2024.
Recent Patents
Application: Enhanced secure onboard communication for can (Patent ID: US20240184734A1)
The patent filed by Renesas Electronics Corp. relates to securing communication between Electronic Control Units (ECUs) by securely transmitting Controller Area Network (CAN) protocol frames via a CAN controller. The method involves receiving a CAN ID and payload from a Central Processing Unit (CPU), incrementing a freshness value, storing it in a CAN controller register, generating an Integrity Check Value (ICV) based on the CAN ID, payload, and a digital key, and creating a frame to be transmitted with the CAN ID, freshness value, payload, and ICV. Additional features include generating the ICV based on payload type, authenticity of the payload, and truncating the ICV.
Furthermore, the method includes initializing the transmitting CAN controller by loading memory with initialized freshness values and digital keys, configuring the CAN controller registers to map CAN IDs to digital key indices, and user-defined configuration mapping for CAN IDs and digital key indices. The method also allows for user input to determine freshness value increment step and involves determining ICV generation based on payload authenticity indicators in the payload. Overall, the patent outlines a comprehensive method for securely transmitting CAN protocol frames to enhance communication security between ECUs.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
