{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9813846","patent":{"patent_number":"US-9813846","title":"Short-distance radio communication system for vehicle","assignee":null,"inventors":[],"filing_date":"2016-03-18T00:00:00.000Z","publication_date":"2017-11-07T00:00:00.000Z","cpc_codes":["H04W","G08C","G08C"],"num_claims":4,"abstract":"This short-distance radio communication system for a vehicle includes an in-vehicle unit having more than one antenna and a portable unit performing radio communications with the in-vehicle unit. The in-vehicle unit transmits a first burst together with a call signal for calling the portable unit through a first antenna, and transmits a second burst subsequent to the first burst through a second antenna. The portable unit receives the signals transmitted from the in-vehicle unit, measures respective received signal strength indicators from the first burst and the second burst contained in the received signals, and responds to the in-vehicle unit according to results of comparing the respective indicators with given thresholds."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Short-distance radio communication system for vehicle","description":"This short-distance radio communication system for a vehicle includes an in-vehicle unit having more than one antenna and a portable unit performing radio communications with the in-vehicle unit. The ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9813846","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-9813846","citation_suggestion":"Patentable. \"Short-distance radio communication system for vehicle\" (US-9813846). https://patentable.app/patents/US-9813846","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9813846","json":"https://patentable.app/api/llm-context/US-9813846","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T19:50:48.288Z"}