{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8521091","patent":{"patent_number":"US-8521091","title":"Method of measuring a distance between two radio-communication devices and device adapted to implement one such method","assignee":null,"inventors":[],"filing_date":"2005-12-23T00:00:00.000Z","publication_date":"2013-08-27T00:00:00.000Z","cpc_codes":["H04W"],"num_claims":13,"abstract":"The invention relates to a method of measuring a distance between two radio-communication devices (1, 2), consisting in measuring a radio signal exchange delay. According to the invention, the time-of-flight of the signals is calculated from the exchange delay and subsequently corrected using an analysis of a single channel measuring frame that is transmitted between the two devices. The corrected time-of-flight corresponds to the shortest propagation path followed by the radio signals. In the majority of radio transmission medium configurations, the corrected time-of-flight is a straight line measurement of the distance separating the two devices (1, 2)."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method of measuring a distance between two radio-communication devices and device adapted to implement one such method","description":"The invention relates to a method of measuring a distance between two radio-communication devices (1, 2), consisting in measuring a radio signal exchange delay. According to the invention, the time-of","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8521091","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-8521091","citation_suggestion":"Patentable. \"Method of measuring a distance between two radio-communication devices and device adapted to implement one such method\" (US-8521091). https://patentable.app/patents/US-8521091","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8521091","json":"https://patentable.app/api/llm-context/US-8521091","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T16:22:26.430Z"}