{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9811961","patent":{"patent_number":"US-9811961","title":"Vehicular near field communication system, portable device, and on-board instrument","assignee":null,"inventors":[],"filing_date":"2016-09-06T00:00:00.000Z","publication_date":"2017-11-07T00:00:00.000Z","cpc_codes":["G07C","G07C","G07C","H04B"],"num_claims":8,"abstract":"This vehicular near field communication system has a configuration where a portable device receives a first signal and a second signal respectively transmitted from a vehicle-exterior antenna and a vehicle-interior antenna of an on-board instrument mounted in a vehicle, measures a first received signal strength from the first signal, measures a second received signal strength from the second signal, adds an offset to the second received signal strength, and transmits a response signal to the on-board instrument in accordance with the first received signal strength and the second received signal strength added with the offset, so as to be able to prevent a portable device from being locked in a cabin even though the portable device is shielded by a metal in the cabin."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Vehicular near field communication system, portable device, and on-board instrument","description":"This vehicular near field communication system has a configuration where a portable device receives a first signal and a second signal respectively transmitted from a vehicle-exterior antenna and a ve","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9811961","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-9811961","citation_suggestion":"Patentable. \"Vehicular near field communication system, portable device, and on-board instrument\" (US-9811961). https://patentable.app/patents/US-9811961","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9811961","json":"https://patentable.app/api/llm-context/US-9811961","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:20:55.613Z"}