{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9692503","patent":{"patent_number":"US-9692503","title":"Network protection through excess directions of reconfigurable optical add/drop multiplexor (ROADM)","assignee":null,"inventors":[],"filing_date":"2014-11-04T00:00:00.000Z","publication_date":"2017-06-27T00:00:00.000Z","cpc_codes":["H04B","H04J","H04J"],"num_claims":20,"abstract":"A first reconfigurable optical add/drop multiplexers (ROADM) and a second ROADM are connected by a primary light path and a protection light path. The first ROADM includes a first direction and a second direction, and the second ROADM includes a third direction and a fourth direction. The primary light path is coupled between the first direction and the third direction, and the protection light path is coupled between the second direction and the fourth direction. Transmissions on the primary light path are monitored, and when a problem is detected on the primary light path, the first and third directions are deactivated and the second and fourth directions are activated so that additional light signals are sent on the protection light path and not on the primary light path."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Network protection through excess directions of reconfigurable optical add/drop multiplexor (ROADM)","description":"A first reconfigurable optical add/drop multiplexers (ROADM) and a second ROADM are connected by a primary light path and a protection light path. The first ROADM includes a first direction and a seco","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9692503","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-9692503","citation_suggestion":"Patentable. \"Network protection through excess directions of reconfigurable optical add/drop multiplexor (ROADM)\" (US-9692503). https://patentable.app/patents/US-9692503","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9692503","json":"https://patentable.app/api/llm-context/US-9692503","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T14:41:40.216Z"}