{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10498439","patent":{"patent_number":"US-10498439","title":"Method and device for determining the latency or length of an optical path, especially an optical fiber, of a fiber-optic transmission link","assignee":null,"inventors":[],"filing_date":"2018-05-30T00:00:00.000Z","publication_date":"2019-12-03T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04B","H04Q"],"num_claims":20,"abstract":"A method for determining the latency or length of an optical path of a fiber-optic transmission link includes: starting a measurement cycle at a first point in time; stopping the measurement cycle at a second point in time after having received a last measurement bit or bit pattern at the first end; determining, at the first end, the total round-trip delay of the optical path by evaluating a time information available at the first end; and calculating the length of the optical path by using the total round-trip delay and the group velocity characterizing the signal propagation along the optical path."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and device for determining the latency or length of an optical path, especially an optical fiber, of a fiber-optic transmission link","description":"A method for determining the latency or length of an optical path of a fiber-optic transmission link includes: starting a measurement cycle at a first point in time; stopping the measurement cycle at ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10498439","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-10498439","citation_suggestion":"Patentable. \"Method and device for determining the latency or length of an optical path, especially an optical fiber, of a fiber-optic transmission link\" (US-10498439). https://patentable.app/patents/US-10498439","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10498439","json":"https://patentable.app/api/llm-context/US-10498439","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T07:06:01.715Z"}