{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9660742","patent":{"patent_number":"US-9660742","title":"Detecting signal leakage in cable networks","assignee":null,"inventors":[],"filing_date":"2016-05-31T00:00:00.000Z","publication_date":"2017-05-23T00:00:00.000Z","cpc_codes":["H04B","H04B","H04L"],"num_claims":20,"abstract":"A signal leakage in a cable network may be detected by using a test device to obtain a spectrum of an electromagnetic wave propagating in vicinity of the cable network, and automatically detecting QAM channels in the obtained spectrum by detecting characteristic spectral roll-offs at boundary frequencies between QAM channels of the cable network. A test device may be used to determine which QAM channels are currently active on the cable network, thereby facilitating automatic QAM signal leakage detection."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Detecting signal leakage in cable networks","description":"A signal leakage in a cable network may be detected by using a test device to obtain a spectrum of an electromagnetic wave propagating in vicinity of the cable network, and automatically detecting QAM","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9660742","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-9660742","citation_suggestion":"Patentable. \"Detecting signal leakage in cable networks\" (US-9660742). https://patentable.app/patents/US-9660742","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9660742","json":"https://patentable.app/api/llm-context/US-9660742","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:38:20.497Z"}