{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9849860","patent":{"patent_number":"US-9849860","title":"Keyless entry device","assignee":null,"inventors":[],"filing_date":"2017-01-13T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["G07C","H04B","H04B","H04B","G07C"],"num_claims":18,"abstract":"A vehicle-side device includes a vehicle-side control unit that controls transmission of a request signal and performs predetermined control when authentication is successful on the basis of an answer signal, a portable device includes a portable-device control unit that detects reception intensity information of the request signal transmitted from the vehicle-side device and transmits an answer signal based on the reception intensity, the vehicle-side control unit controls a vehicle-side transmission unit so that the vehicle-side transmission unit transmits the request signal including the determination signal having an intensity level different for each section, and the vehicle-side control unit or the portable-device control unit determines whether or not the request signal is a true signal on the basis of a fluctuation in the reception intensity in each section of the determination signal received by the portable device."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Keyless entry device","description":"A vehicle-side device includes a vehicle-side control unit that controls transmission of a request signal and performs predetermined control when authentication is successful on the basis of an answer","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9849860","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-9849860","citation_suggestion":"Patentable. \"Keyless entry device\" (US-9849860). https://patentable.app/patents/US-9849860","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9849860","json":"https://patentable.app/api/llm-context/US-9849860","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:37:50.155Z"}