{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9634762","patent":{"patent_number":"US-9634762","title":"Optical transmission system, node apparatus, and reachability determination method","assignee":null,"inventors":[],"filing_date":"2016-03-15T00:00:00.000Z","publication_date":"2017-04-25T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04B","H04B","H04Q","H04Q"],"num_claims":3,"abstract":"A node apparatus is installed at a node located on a route from a start node to an end node, and includes: a parameter calculating unit configured to, upon receiving routing information specifying the route and a first parameter representing an amount of signal degradation, update the first parameter by using a second parameter representing an amount of signal degradation along a transmission route to an adjacent node, and generate a third parameter representing an amount of signal degradation along a transmission route between the start node and the node, specified by the routing information; and a determination unit configured to determine reachability of the route specified by the routing information in accordance with the third parameter and a fourth parameter representing an amount of signal degradation along a transmission route from the node to the end node specified by the routing information."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Optical transmission system, node apparatus, and reachability determination method","description":"A node apparatus is installed at a node located on a route from a start node to an end node, and includes: a parameter calculating unit configured to, upon receiving routing information specifying the","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9634762","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-9634762","citation_suggestion":"Patentable. \"Optical transmission system, node apparatus, and reachability determination method\" (US-9634762). https://patentable.app/patents/US-9634762","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9634762","json":"https://patentable.app/api/llm-context/US-9634762","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:20:40.245Z"}