{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8515276","patent":{"patent_number":"US-8515276","title":"Method, device and system for optical network switching protection","assignee":null,"inventors":[],"filing_date":"2011-12-09T00:00:00.000Z","publication_date":"2013-08-20T00:00:00.000Z","cpc_codes":["H04J","H04J","H04L","H04Q","H04Q","H04Q"],"num_claims":15,"abstract":"In the field of optical communications technologies, a method and a system for optical network switching protection are provided, to solve the problem of long service interruption time during active-standby switching in the prior art. One optical terminal apparatus is selected as a ranging optical terminal apparatus after a service is switched from an active optical central office end apparatus to a standby optical central office end apparatus; a delay difference between delay from the ranging optical terminal apparatus to the standby optical central office end apparatus and delay from the ranging optical terminal apparatus to the active optical central office end apparatus respectively is obtained; and time at which data sent by all the optical terminal apparatuses reaches the standby optical central office end apparatus is synchronized according to the delay difference. The method and the system are mainly used in an optical communication system."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method, device and system for optical network switching protection","description":"In the field of optical communications technologies, a method and a system for optical network switching protection are provided, to solve the problem of long service interruption time during active-s","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8515276","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-8515276","citation_suggestion":"Patentable. \"Method, device and system for optical network switching protection\" (US-8515276). https://patentable.app/patents/US-8515276","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8515276","json":"https://patentable.app/api/llm-context/US-8515276","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T13:41:19.059Z"}