{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11277021","patent":{"patent_number":"US-11277021","title":"LED-based emergency lighting equipment and methodology","assignee":null,"inventors":[],"filing_date":"2020-08-27T00:00:00.000Z","publication_date":"2022-03-15T00:00:00.000Z","cpc_codes":["H02J","H02J","H02J","H02J","H02J","H02J","H02J","H02J"],"num_claims":15,"abstract":"A brown-out detection apparatus including a voltage sensing circuit, a first circuit, and a second circuit. The voltage sensing circuit senses an input AC voltage having a first nominal input voltage value or a second nominal input voltage value. The voltage sensing circuit includes an output outputting a reference DC voltage proportional said input AC voltage. The first circuit is responsive to said output of said voltage sensing circuit. The first circuit includes a first output outputting a first voltage value when said input AC voltage is below a threshold voltage level and a second voltage value when said input AC voltage is above said threshold level. The second circuit is responsive to said first output. The second circuit includes a second output outputting a second control signal indicative of a brown-out condition of said input AC voltage."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"LED-based emergency lighting equipment and methodology","description":"A brown-out detection apparatus including a voltage sensing circuit, a first circuit, and a second circuit. The voltage sensing circuit senses an input AC voltage having a first nominal input voltage ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11277021","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-11277021","citation_suggestion":"Patentable. \"LED-based emergency lighting equipment and methodology\" (US-11277021). https://patentable.app/patents/US-11277021","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11277021","json":"https://patentable.app/api/llm-context/US-11277021","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:59:37.226Z"}