{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9621263","patent":{"patent_number":"US-9621263","title":"Method, apparatus, node device and network system for detecting optical signal-to-noise ratio","assignee":null,"inventors":[],"filing_date":"2014-09-23T00:00:00.000Z","publication_date":"2017-04-11T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B"],"num_claims":19,"abstract":"The present invention discloses a method and an apparatus for detecting an optical signal-to-noise ratio, a node device, and a network system. The method includes: receiving a detected optical signal carrying amplified spontaneous emission ASE noise; detecting a first alternating current component and a first direct current component of the detected optical signal; acquiring first modulation information of the detected optical signal; acquiring first correction information corresponding to the first modulation information according to the first modulation information; and determining an optical signal-to-noise ratio OSNR of the detected optical signal according to the first alternating current component, the first direct current component, and the first correction information."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method, apparatus, node device and network system for detecting optical signal-to-noise ratio","description":"The present invention discloses a method and an apparatus for detecting an optical signal-to-noise ratio, a node device, and a network system. The method includes: receiving a detected optical signal ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9621263","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-9621263","citation_suggestion":"Patentable. \"Method, apparatus, node device and network system for detecting optical signal-to-noise ratio\" (US-9621263). https://patentable.app/patents/US-9621263","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9621263","json":"https://patentable.app/api/llm-context/US-9621263","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:19:55.934Z"}