{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8514131","patent":{"patent_number":"US-8514131","title":"Methods and apparatus for increasing the reliability of signal reference maps for use in position determination","assignee":null,"inventors":[],"filing_date":"2010-09-03T00:00:00.000Z","publication_date":"2013-08-20T00:00:00.000Z","cpc_codes":["G01S","G01S","G01S"],"num_claims":25,"abstract":"A mobile wireless device receives a set of fingerprint prediction maps, e.g., RF signal prediction maps, and corresponding probability metrics, e.g., indicative of map reliability. A fingerprint prediction map is an expected signal measurement map corresponding to a parameter or parameters to be measured and a area given a set of expected conditions. At different times, e.g., due to different conditions, a different map in the set of fingerprint prediction maps may be more likely to be accurate. The mobile wireless device updates the probability metrics, associated with different alternative maps in the set of maps, as a function of one or more of: known information, sensor readings, measurements, detected information, and position determination. The mobile wireless device determines its current position using fingerprint predication maps and one or more updated probability metrics."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods and apparatus for increasing the reliability of signal reference maps for use in position determination","description":"A mobile wireless device receives a set of fingerprint prediction maps, e.g., RF signal prediction maps, and corresponding probability metrics, e.g., indicative of map reliability. A fingerprint predi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8514131","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-8514131","citation_suggestion":"Patentable. \"Methods and apparatus for increasing the reliability of signal reference maps for use in position determination\" (US-8514131). https://patentable.app/patents/US-8514131","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8514131","json":"https://patentable.app/api/llm-context/US-8514131","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T22:14:53.746Z"}