{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8464081","patent":{"patent_number":"US-8464081","title":"System and method for communication using an AC signal from a powered device","assignee":null,"inventors":[],"filing_date":"2010-08-27T00:00:00.000Z","publication_date":"2013-06-11T00:00:00.000Z","cpc_codes":["H04L"],"num_claims":20,"abstract":"A system and method for communicating information using Layer 1 from a powered device to power source equipment via Ethernet. In one embodiment, Layer 1 information such as power management, classification, temperature, and disconnect information is transmitted from a powered device to power source equipment using an AC signal that has a cycle defining a first time period during which the AC signal is turned on and a second time period during which the AC signal is turned off. A type of information being sent by the powered device can be determined based on characteristic on/off times of the AC signal cycle."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System and method for communication using an AC signal from a powered device","description":"A system and method for communicating information using Layer 1 from a powered device to power source equipment via Ethernet. In one embodiment, Layer 1 information such as power management, classific","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8464081","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-8464081","citation_suggestion":"Patentable. \"System and method for communication using an AC signal from a powered device\" (US-8464081). https://patentable.app/patents/US-8464081","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8464081","json":"https://patentable.app/api/llm-context/US-8464081","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:30:40.446Z"}