{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9614638","patent":{"patent_number":"US-9614638","title":"Methods and systems for periodic optical filtering to identify tone modulated optical signals","assignee":null,"inventors":[],"filing_date":"2015-07-02T00:00:00.000Z","publication_date":"2017-04-04T00:00:00.000Z","cpc_codes":["H04B","H04B"],"num_claims":14,"abstract":"Methods and systems for periodic optical filtering to identify tone modulated optical signals may enable relatively rapid scanning of an optical signal to identify individual optical channels. The optical signal having tone modulated optical channels may be scanned over a free spectral range of a periodic optical filter, such as a comb filter, to generate a filtered signal. Then, center optical frequencies for each of the optical channels in the filtered signal may be determined by demodulation and digital signal processing."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods and systems for periodic optical filtering to identify tone modulated optical signals","description":"Methods and systems for periodic optical filtering to identify tone modulated optical signals may enable relatively rapid scanning of an optical signal to identify individual optical channels. The opt","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9614638","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-9614638","citation_suggestion":"Patentable. \"Methods and systems for periodic optical filtering to identify tone modulated optical signals\" (US-9614638). https://patentable.app/patents/US-9614638","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9614638","json":"https://patentable.app/api/llm-context/US-9614638","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:31:51.473Z"}