{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9797725","patent":{"patent_number":"US-9797725","title":"Apparatus and method to aid magnetic positioning and navigation","assignee":null,"inventors":[],"filing_date":"2016-02-12T00:00:00.000Z","publication_date":"2017-10-24T00:00:00.000Z","cpc_codes":["G01C","G01C"],"num_claims":5,"abstract":"An apparatus and method for altering the nature of a magnetic field at a location is presented, consisting of a placement of one or more static magnets, electromagnets or other magnetic field altering apparatus at strategic positions, in order to ensure that no two paths through the location present the same fluctuations and patterns in magnetic field intensity and heading. In a further embodiment a magnetic field in a location is modulated in a predetermined manner through the use of one or more electromagnets supplied with an equivalent modulated current or voltage. This prevents identical magnetic field patterns and provides a magnetic field measuring device with the possibility of determining an approximate location while stationary, and detecting whether materials capable of altering the magnetic field of the location have been added or removed from the location since magnetic mapping was conducted."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Apparatus and method to aid magnetic positioning and navigation","description":"An apparatus and method for altering the nature of a magnetic field at a location is presented, consisting of a placement of one or more static magnets, electromagnets or other magnetic field altering","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9797725","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-9797725","citation_suggestion":"Patentable. \"Apparatus and method to aid magnetic positioning and navigation\" (US-9797725). https://patentable.app/patents/US-9797725","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9797725","json":"https://patentable.app/api/llm-context/US-9797725","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:20:58.039Z"}