{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9742526","patent":{"patent_number":"US-9742526","title":"Optimal signal constellation design for ultra-high-speed optical transport in the presence of phase noise","assignee":null,"inventors":[],"filing_date":"2014-10-02T00:00:00.000Z","publication_date":"2017-08-22T00:00:00.000Z","cpc_codes":["H04L","H04B","H04B","H04L","H04L","H04L","H04L"],"num_claims":19,"abstract":"A method to process applicable to coherent optical channels with either linear or nonlinear phase noise includes: splitting a received sequence of data into clusters of points according to a cumulative log-likelihood function from constellation obtained in a previous iteration; generating new constellation points by calculating a center of mass of the clusters of points; repeating until convergence or until a predetermined number of iterations has been reached to determine a signal constellation; and transmitting signals over the coherent optical channels with nonlinear phase noise using the disclosed signal constellation and LDPC-coded modulation concepts."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Optimal signal constellation design for ultra-high-speed optical transport in the presence of phase noise","description":"A method to process applicable to coherent optical channels with either linear or nonlinear phase noise includes: splitting a received sequence of data into clusters of points according to a cumulativ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9742526","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-9742526","citation_suggestion":"Patentable. \"Optimal signal constellation design for ultra-high-speed optical transport in the presence of phase noise\" (US-9742526). https://patentable.app/patents/US-9742526","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9742526","json":"https://patentable.app/api/llm-context/US-9742526","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:22:19.749Z"}