{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9651655","patent":{"patent_number":"US-9651655","title":"Positioning enhancement through time-of-flight measurement in WLAN","assignee":null,"inventors":[],"filing_date":"2015-10-26T00:00:00.000Z","publication_date":"2017-05-16T00:00:00.000Z","cpc_codes":["G01S","G01S","G01S","G01S","G01S","H04W","H04W"],"num_claims":20,"abstract":"Method and system for obtaining positioning of nodes in a wireless local access network (WLAN), comprise, by an initiator node of the WLAN, calculating a compensated time-of-flight (ToF) of messages exchanged between the initiator node and a target node and calculating a distance of the target node relative to the initiator node using the compensated ToF, thereby obtaining relative positioning between the initiator and target nodes. The compensated ToF is calculated using OFDM symbol slope inputs measured at the initiator and target nodes. Each node is associated with an enhanced WLAN unit adapted to measure and calculate the compensated ToF."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Positioning enhancement through time-of-flight measurement in WLAN","description":"Method and system for obtaining positioning of nodes in a wireless local access network (WLAN), comprise, by an initiator node of the WLAN, calculating a compensated time-of-flight (ToF) of messages e","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9651655","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-9651655","citation_suggestion":"Patentable. \"Positioning enhancement through time-of-flight measurement in WLAN\" (US-9651655). https://patentable.app/patents/US-9651655","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9651655","json":"https://patentable.app/api/llm-context/US-9651655","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:47:56.649Z"}