{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8538261","patent":{"patent_number":"US-8538261","title":"Immediate protection scheme for passive optical network","assignee":null,"inventors":[],"filing_date":"2008-03-17T00:00:00.000Z","publication_date":"2013-09-17T00:00:00.000Z","cpc_codes":["H04Q","H04B","H04B","H04J","H04J","H04J","H04Q","H04Q"],"num_claims":33,"abstract":"The present invention relates to a method, device and system for fast protection of an optical network system, in particular for a Passive Optical Network (PON), such as a Gigabit-capable Passive Optical Network (GPON). In the method, communication failure between a first optical network device and a first optical line termination device is detected. Switching of functionality from the first optical line termination device to a second optical line termination device is initiated, and a control message is sent from the second optical line termination device to the first optical network device such that the first optical network device is prevented from moving into initial state. Furthermore, the method comprises determining and setting timing settings for the first optical network device."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Immediate protection scheme for passive optical network","description":"The present invention relates to a method, device and system for fast protection of an optical network system, in particular for a Passive Optical Network (PON), such as a Gigabit-capable Passive Opti","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8538261","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-8538261","citation_suggestion":"Patentable. \"Immediate protection scheme for passive optical network\" (US-8538261). https://patentable.app/patents/US-8538261","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8538261","json":"https://patentable.app/api/llm-context/US-8538261","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T10:30:28.638Z"}