{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11271421","patent":{"patent_number":"US-11271421","title":"Solid-state lighting with self-diagnostic tests","assignee":null,"inventors":[],"filing_date":"2020-09-21T00:00:00.000Z","publication_date":"2022-03-08T00:00:00.000Z","cpc_codes":["H02J","H02J","H02J","H02J","H02J"],"num_claims":18,"abstract":"A light-emitting diode (LED) luminaire comprising an emergency-operated portion is used to replace a luminaire operated only in a normal mode with alternate-current (AC) mains. The emergency-operated portion comprises a rechargeable battery with a terminal voltage, a self-diagnostic circuit, and a transceiver circuit. The LED luminaire can auto-switch from the normal mode to an emergency mode or the other way around according to availability of the AC mains and whether a rechargeable battery test is initiated. The self-diagnostic circuit comprises timers and is configured to provide sequences and to auto-evaluate battery performance according to the sequences with the terminal voltage examined and test results stored. The LED luminaire further comprises a remote controller. When the remote control signals are initiated by the remote controller with phase-shift keying (PSK) signals transmitted, the transceiver circuit can demodulate such PSK signals and subsequently send commands to the self-diagnostic circuit to request responses accordingly."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Solid-state lighting with self-diagnostic tests","description":"A light-emitting diode (LED) luminaire comprising an emergency-operated portion is used to replace a luminaire operated only in a normal mode with alternate-current (AC) mains. The emergency-operated ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11271421","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-11271421","citation_suggestion":"Patentable. \"Solid-state lighting with self-diagnostic tests\" (US-11271421). https://patentable.app/patents/US-11271421","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11271421","json":"https://patentable.app/api/llm-context/US-11271421","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:30:05.049Z"}