{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8526485","patent":{"patent_number":"US-8526485","title":"Using equalization coefficients of end devices in a cable television network to determine and diagnose impairments in upstream channels","assignee":null,"inventors":[],"filing_date":"2009-09-23T00:00:00.000Z","publication_date":"2013-09-03T00:00:00.000Z","cpc_codes":["H04B"],"num_claims":20,"abstract":"A system estimates impairment contributions for upstream communications in a cable television system. The system receives equalization coefficients used by end devices in the cable television system. The equalization coefficients are used by equalizers to mitigate distortion in upstream channels for the end devices. The system analyzes the coefficients based on impairment thresholds to determine whether impairment problems exist and to identify the types of impairment problems that exist."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Using equalization coefficients of end devices in a cable television network to determine and diagnose impairments in upstream channels","description":"A system estimates impairment contributions for upstream communications in a cable television system. The system receives equalization coefficients used by end devices in the cable television system. ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8526485","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-8526485","citation_suggestion":"Patentable. \"Using equalization coefficients of end devices in a cable television network to determine and diagnose impairments in upstream channels\" (US-8526485). https://patentable.app/patents/US-8526485","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8526485","json":"https://patentable.app/api/llm-context/US-8526485","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:30:02.174Z"}