{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11971978","patent":{"patent_number":"US-11971978","title":"Vehicle network system whose security is improved using message authentication code","assignee":null,"inventors":[],"filing_date":"2021-08-04T00:00:00.000Z","publication_date":"2024-04-30T00:00:00.000Z","cpc_codes":["G06F","G06F","H04L","H04L","H04L","H04L"],"num_claims":12,"abstract":"A vehicle network system employing a controller area network protocol includes a bus, a first electronic control unit, and a second electronic control unit. The first electronic control unit transmits, via the bus, at least one data frame including an identifier relating to data used for a calculation for obtaining a message authentication code indicating authenticity of transmission content. The second electronic control unit receives the at least one data frame transmitted vis the bus and verifies the message authentication code in accordance with the identifier included in the at least one data frame."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Vehicle network system whose security is improved using message authentication code","description":"A vehicle network system employing a controller area network protocol includes a bus, a first electronic control unit, and a second electronic control unit. The first electronic control unit transmits","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11971978","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11971978","citation_suggestion":"Patentable. \"Vehicle network system whose security is improved using message authentication code\" (US-11971978). https://patentable.app/patents/US-11971978","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11971978","json":"https://patentable.app/api/llm-context/US-11971978","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T14:46:52.629Z"}