{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9763219","patent":{"patent_number":"US-9763219","title":"Method of estimating position of user device","assignee":null,"inventors":[],"filing_date":"2013-07-05T00:00:00.000Z","publication_date":"2017-09-12T00:00:00.000Z","cpc_codes":["H04W","G01C","G01C","G01C"],"num_claims":42,"abstract":"The invention provides a method of estimating the position of a user device carried by a user, the method comprising: providing an initial position of the user device; measuring a vertical acceleration of the user device, thereby generating vertical acceleration data; measuring an orientation of the user device, thereby generating principal direction data; processing the vertical acceleration data to detect one or more steps taken by the user, and subsequently validating the detection of one or more of said one or more steps; generating one or more motion vectors in respect of the validated steps taken by the user using the principal direction data; and estimating an updated position of the user device by combining the motion vector(s) with the initial position. The method may be used by, for example, a smartphone to estimate its position, particularly where other positioning systems are unavailable."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method of estimating position of user device","description":"The invention provides a method of estimating the position of a user device carried by a user, the method comprising: providing an initial position of the user device; measuring a vertical acceleratio","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9763219","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-9763219","citation_suggestion":"Patentable. \"Method of estimating position of user device\" (US-9763219). https://patentable.app/patents/US-9763219","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9763219","json":"https://patentable.app/api/llm-context/US-9763219","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:46:55.025Z"}