{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10530492","patent":{"patent_number":"US-10530492","title":"Forward and backward propagation methods and structures for coherent optical receiver","assignee":null,"inventors":[],"filing_date":"2018-10-03T00:00:00.000Z","publication_date":"2020-01-07T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04B","H04B","H04B","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04B","H04L","H04L"],"num_claims":20,"abstract":"A method and structure for signal propagation in a coherent optical receiver device. Asynchronous equalization helps to reduce complexity and power dissipation, and also improves the robustness of timing recovery. However, conventional devices using inverse interpolation filters ignore adaptation algorithms. The present invention provides for forward propagation and backward propagation. In the forward case, the filter input signal is forward propagated through a filter to the adaptation engine, while, in the backward case, the error signal is backward propagated through a filter to the asynchronous domain. Using such forward and backward propagation schemes reduces implementation complexity while providing optical device performance."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Forward and backward propagation methods and structures for coherent optical receiver","description":"A method and structure for signal propagation in a coherent optical receiver device. Asynchronous equalization helps to reduce complexity and power dissipation, and also improves the robustness of tim","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10530492","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-10530492","citation_suggestion":"Patentable. \"Forward and backward propagation methods and structures for coherent optical receiver\" (US-10530492). https://patentable.app/patents/US-10530492","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10530492","json":"https://patentable.app/api/llm-context/US-10530492","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T14:31:37.816Z"}