{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9698905","patent":{"patent_number":"US-9698905","title":"Optical transmission system, optical transmission apparatus and wavelength spacing measurement apparatus","assignee":null,"inventors":[],"filing_date":"2015-05-14T00:00:00.000Z","publication_date":"2017-07-04T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04J","H04B"],"num_claims":12,"abstract":"An optical transmission system includes comprising: a first optical transmission apparatus to transmit wavelength-multiplexed optical signals; and a second optical transmission apparatus to receive the wavelength-multiplexed optical signals, the second optical transmission apparatus including: a receiver to perform digital coherent reception; a wavelength spacing monitor to transform a reception signal obtained by the digital coherent reception from a time domain signal to a frequency domain spectrum signal, and to monitor wavelength spacing of the spectrum signal; and a transmitter to transmit, to the first optical transmission apparatus, wavelength control information according to a monitor result obtained by the wavelength spacing monitor or the monitor result, wherein the first optical transmission apparatus includes: a receiver to receive the wavelength control information or the monitor result; and a control unit to control the wavelength spacing based on the wavelength control information or the monitor result received by the receiver."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Optical transmission system, optical transmission apparatus and wavelength spacing measurement apparatus","description":"An optical transmission system includes comprising: a first optical transmission apparatus to transmit wavelength-multiplexed optical signals; and a second optical transmission apparatus to receive th","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9698905","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-9698905","citation_suggestion":"Patentable. \"Optical transmission system, optical transmission apparatus and wavelength spacing measurement apparatus\" (US-9698905). https://patentable.app/patents/US-9698905","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9698905","json":"https://patentable.app/api/llm-context/US-9698905","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:58:00.380Z"}