{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9823335","patent":{"patent_number":"US-9823335","title":"Vehicle system, in-vehicle apparatus, and portable device","assignee":null,"inventors":[],"filing_date":"2014-02-12T00:00:00.000Z","publication_date":"2017-11-21T00:00:00.000Z","cpc_codes":["G01S","G01S","G07C","G07C","G07C","G07C","H04M"],"num_claims":11,"abstract":"A vehicle system includes: an in-vehicle apparatus having a signal transmission unit that transmits different pulse pattern signals from multiple transmitting antennas; and a portable device having a receiving unit that receives the signals. The in-vehicle apparatus or the portable device includes a portable device position identification unit that identifies a position of the portable device according to the signals. The portable device includes a frequency-to-voltage conversion unit that outputs a voltage corresponding to a frequency of each signal. The portable device position identification unit includes: a first storage unit that preliminary stores voltage change patterns corresponding to the frequencies of the signals in relation to positions of the vehicle; and a first position estimation unit that compares the voltage change patterns of the frequency-to-voltage conversion unit with the voltage change patterns in the first storage unit, and estimates the position of the portable device."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Vehicle system, in-vehicle apparatus, and portable device","description":"A vehicle system includes: an in-vehicle apparatus having a signal transmission unit that transmits different pulse pattern signals from multiple transmitting antennas; and a portable device having a ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9823335","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-9823335","citation_suggestion":"Patentable. \"Vehicle system, in-vehicle apparatus, and portable device\" (US-9823335). https://patentable.app/patents/US-9823335","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9823335","json":"https://patentable.app/api/llm-context/US-9823335","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:17:46.948Z"}