{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9651654","patent":{"patent_number":"US-9651654","title":"Correcting device error radius estimates in positioning systems","assignee":null,"inventors":[],"filing_date":"2012-06-22T00:00:00.000Z","publication_date":"2017-05-16T00:00:00.000Z","cpc_codes":["G01S","G01S","G01S","G01S","G01S"],"num_claims":20,"abstract":"Embodiments adjust device error radiuses associated with inferred device positions produced by positioning systems. Inferred beacon positions and associated beacon radiuses are accessed for beacons in a beacon fingerprint from an observing computing device. The beacon radiuses are associated with a pre-defined confidence level (e.g., an in-circle percentage). A Kalman filter is applied to at least one of the beacons using the inferred beacon positions and the beacon radiuses associated therewith to infer a device position for the computing device and to compute a device error radius for the inferred device position. The computed device error radius is adjusted as a function of the quantity of beacons input to the Kalman filter to achieve the pre-defined confidence level."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Correcting device error radius estimates in positioning systems","description":"Embodiments adjust device error radiuses associated with inferred device positions produced by positioning systems. Inferred beacon positions and associated beacon radiuses are accessed for beacons in","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9651654","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-9651654","citation_suggestion":"Patentable. \"Correcting device error radius estimates in positioning systems\" (US-9651654). https://patentable.app/patents/US-9651654","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9651654","json":"https://patentable.app/api/llm-context/US-9651654","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:41:29.175Z"}