{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11463172","patent":{"patent_number":"US-11463172","title":"Apparatus and method for monitoring polarization change","assignee":null,"inventors":[],"filing_date":"2021-10-01T00:00:00.000Z","publication_date":"2022-10-04T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04B","H04J","H04B"],"num_claims":10,"abstract":"An apparatus and method to monitor a polarization change by inserting pilot signals in a transmission signal and converting the pilot signals in the receiving signal from a Jones space into a Stokes space. A velocity of a polarization change of the optical link is estimated by using the Stokes vectors of the pilot signals, thereby directly and accurately estimating the polarization change of the optical link. Moreover, estimation of the velocity of the polarization may be applicable where rotation of state of polarization and polarization-dependent loss coexist in an optical link."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Apparatus and method for monitoring polarization change","description":"An apparatus and method to monitor a polarization change by inserting pilot signals in a transmission signal and converting the pilot signals in the receiving signal from a Jones space into a Stokes s","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11463172","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-11463172","citation_suggestion":"Patentable. \"Apparatus and method for monitoring polarization change\" (US-11463172). https://patentable.app/patents/US-11463172","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11463172","json":"https://patentable.app/api/llm-context/US-11463172","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T21:45:38.235Z"}