{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8519853","patent":{"patent_number":"US-8519853","title":"Unobtrusive driver drowsiness detection system and method","assignee":null,"inventors":[],"filing_date":"2009-11-05T00:00:00.000Z","publication_date":"2013-08-27T00:00:00.000Z","cpc_codes":["A61B","A61B","A61B","A61B","B60W","B60W","G16H"],"num_claims":23,"abstract":"A drowsiness detection system and method uses Empirical Mode Decomposition (EMD) signal processing to detect whether a vehicle driver is drowsy. The system uses a decomposed component of the steering wheel signal to extract specific features representing the steering control degradation phases. The system classifies the measured features into alert or drowsy state. The detection system is independent of the road geometry and automatically compensates steering control performance variability between drivers. The system is accurate in detecting the drowsy periods and drowsy-related lane departures. The detection system is unobtrusive and can be applied on-line."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Unobtrusive driver drowsiness detection system and method","description":"A drowsiness detection system and method uses Empirical Mode Decomposition (EMD) signal processing to detect whether a vehicle driver is drowsy. The system uses a decomposed component of the steering ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8519853","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-8519853","citation_suggestion":"Patentable. \"Unobtrusive driver drowsiness detection system and method\" (US-8519853). https://patentable.app/patents/US-8519853","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8519853","json":"https://patentable.app/api/llm-context/US-8519853","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:05:07.867Z"}