{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9634721","patent":{"patent_number":"US-9634721","title":"Method and apparatus for sending SELT measurement signal, and control device","assignee":null,"inventors":[],"filing_date":"2015-04-21T00:00:00.000Z","publication_date":"2017-04-25T00:00:00.000Z","cpc_codes":["H04B","H04B","H04L","H04L","H04M","H04M","H04M"],"num_claims":15,"abstract":"Embodiments of the present invention relate to a method and an apparatus for sending a single-ended loop testing SELT measurement signal, and a control device. The method for sending a SELT measurement signal includes: aligning a synchronization symbol of a digital subscriber line on which a SELT diagnosis needs to be performed with a synchronization symbol of at least one DSL line for data transmission, where the synchronization symbol of the digital subscriber line on which a SELT diagnosis needs to be performed and the synchronization symbol of the at least one digital subscriber line for data transmission are uplink or downlink synchronization symbols; and carrying a SELT measurement signal over the aligned synchronization symbol of the DSL line on which a SELT diagnosis needs to be performed, where the SELT measurement signal is used to detect transmission quality or a line fault of the DSL line."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for sending SELT measurement signal, and control device","description":"Embodiments of the present invention relate to a method and an apparatus for sending a single-ended loop testing SELT measurement signal, and a control device. The method for sending a SELT measuremen","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9634721","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-9634721","citation_suggestion":"Patentable. \"Method and apparatus for sending SELT measurement signal, and control device\" (US-9634721). https://patentable.app/patents/US-9634721","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9634721","json":"https://patentable.app/api/llm-context/US-9634721","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:38:33.258Z"}