{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11275479","patent":{"patent_number":"US-11275479","title":"Frequency-based ratiometric feature extraction device for user authentication","assignee":null,"inventors":[],"filing_date":"2021-01-13T00:00:00.000Z","publication_date":"2022-03-15T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F"],"num_claims":12,"abstract":"Disclosed is an electronic device. The electronic device includes an impedance measuring unit including electrodes, that applies a first measurement signal of a first frequency to a user, obtains first biometric impedance data, based on first electrodes among the electrodes, and obtains second biometric impedance data, based on second electrodes among the electrodes, and a signal processor that extracts first feature data of the user, based on the first biometric impedance data and the second biometric impedance data. The first feature data may be based on a ratio between a value of the first biometric impedance data and a value of the second biometric impedance data."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Frequency-based ratiometric feature extraction device for user authentication","description":"Disclosed is an electronic device. The electronic device includes an impedance measuring unit including electrodes, that applies a first measurement signal of a first frequency to a user, obtains firs","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11275479","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-11275479","citation_suggestion":"Patentable. \"Frequency-based ratiometric feature extraction device for user authentication\" (US-11275479). https://patentable.app/patents/US-11275479","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11275479","json":"https://patentable.app/api/llm-context/US-11275479","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T18:23:43.556Z"}