{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8499328","patent":{"patent_number":"US-8499328","title":"Agile distortion and noise cancellation across multiple channels and ports in a CATV upconverter/modulator","assignee":null,"inventors":[],"filing_date":"2011-01-28T00:00:00.000Z","publication_date":"2013-07-30T00:00:00.000Z","cpc_codes":["H04N","H04N"],"num_claims":10,"abstract":"A distortion-cancellation method for analog CATV or QAM transmission over cable is provided wherein a single feedback path from the output of a multiple-channel multiple-port upconverter/modulator is down-converted and used to reduce or cancel undesirable noise components including LO leakage, spurious, and modulated noise. The method allows for real-time monitoring, tuning, or control of the CATV/QAM output and of interfering signals and aging effects as compared to a desired performance metric."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Agile distortion and noise cancellation across multiple channels and ports in a CATV upconverter/modulator","description":"A distortion-cancellation method for analog CATV or QAM transmission over cable is provided wherein a single feedback path from the output of a multiple-channel multiple-port upconverter/modulator is ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8499328","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-8499328","citation_suggestion":"Patentable. \"Agile distortion and noise cancellation across multiple channels and ports in a CATV upconverter/modulator\" (US-8499328). https://patentable.app/patents/US-8499328","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8499328","json":"https://patentable.app/api/llm-context/US-8499328","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T17:15:50.450Z"}