{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8542997","patent":{"patent_number":"US-8542997","title":"High bit rate bidirectional passive optical network, associated optical exchange and line termination device","assignee":null,"inventors":[],"filing_date":"2008-06-18T00:00:00.000Z","publication_date":"2013-09-24T00:00:00.000Z","cpc_codes":["H04B","H04B"],"num_claims":8,"abstract":"The invention relates to a passive optical network comprising an optical exchange linked by at least one optical fiber to at least one line termination device of said network, able to transmit a downlink optical signal phase-modulated in NRZ-DPSK format and to receive an uplink optical signal.According to the invention, said line termination device comprises means of converting the transmitted downlink optical signal phase-modulated in NRZ-DPSK format into an optical data signal amplitude-modulated in duobinary modulation format and means of generating an uplink optical signal phase-modulated in NRZ-DPSK format from the downlink optical signal phase-modulated in NRZ-DPSK format. The optical exchange is able to convert the uplink optical signal phase-modulated in NRZ-DPSK format into an optical data signal amplitude-modulated in duobinary modulation format."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"High bit rate bidirectional passive optical network, associated optical exchange and line termination device","description":"The invention relates to a passive optical network comprising an optical exchange linked by at least one optical fiber to at least one line termination device of said network, able to transmit a downl","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8542997","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-8542997","citation_suggestion":"Patentable. \"High bit rate bidirectional passive optical network, associated optical exchange and line termination device\" (US-8542997). https://patentable.app/patents/US-8542997","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8542997","json":"https://patentable.app/api/llm-context/US-8542997","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:50:46.822Z"}