{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9800326","patent":{"patent_number":"US-9800326","title":"Optical transmission device and protection wavelength selection method","assignee":null,"inventors":[],"filing_date":"2016-07-07T00:00:00.000Z","publication_date":"2017-10-24T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04B","H04B","H04J","H04J"],"num_claims":5,"abstract":"There is provided an optical transmission device including a light source configured to generate light used for coherent detection processing of reception light; a monitor configured to monitor a frequency offset between the reception light having a plurality of protection wavelengths and the light generated by the light source, based on a signal obtained by the coherent detection processing of the reception light having the plurality of protection wavelengths available for a work wavelength by the light generated by the light source; and a controller configured to select a protection wavelength to be switched to the work wavelength among the plurality of protection wavelengths, based on the frequency offset monitored by the monitor."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Optical transmission device and protection wavelength selection method","description":"There is provided an optical transmission device including a light source configured to generate light used for coherent detection processing of reception light; a monitor configured to monitor a freq","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9800326","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-9800326","citation_suggestion":"Patentable. \"Optical transmission device and protection wavelength selection method\" (US-9800326). https://patentable.app/patents/US-9800326","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9800326","json":"https://patentable.app/api/llm-context/US-9800326","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:17:08.204Z"}