{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11493642","patent":{"patent_number":"US-11493642","title":"Estimation of barometric pressure measurement bias by compensating for environment-related effects","assignee":null,"inventors":[],"filing_date":"2021-04-21T00:00:00.000Z","publication_date":"2022-11-08T00:00:00.000Z","cpc_codes":["G01S","G01C","G01C","G01S","G01S","G01S","G01S","G01W","G01S","H04W"],"num_claims":24,"abstract":"A method for estimating the pressure measurement bias of a barometric sensor in a wireless terminal. A location engine using the method generates an enhanced estimate of the measurement bias. The location engine generates the enhanced estimate based in part on relatively coarse estimates of the elevation of the wireless terminal. Each coarse estimate of elevation is often generated from noisy measurements, such as measurements of signals transmitted by Global Positioning System (GPS) satellites, and has an associated uncertainty. The location engine accounts for the uncertainty in these estimates of elevation by applying an optimal estimation technique, such as Kalman filtering, and by compensating for environment-related effects. Compensating Includes filtering across a plurality of lateral locations and imposing a lower bound of bias uncertainty at the lateral locations. Once the location engine generates the enhanced estimate of measurement bias, it can generate improved estimates of elevation of the wireless terminal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Estimation of barometric pressure measurement bias by compensating for environment-related effects","description":"A method for estimating the pressure measurement bias of a barometric sensor in a wireless terminal. A location engine using the method generates an enhanced estimate of the measurement bias. The loca","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11493642","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-11493642","citation_suggestion":"Patentable. \"Estimation of barometric pressure measurement bias by compensating for environment-related effects\" (US-11493642). https://patentable.app/patents/US-11493642","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11493642","json":"https://patentable.app/api/llm-context/US-11493642","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T07:59:00.836Z"}