{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9729839","patent":{"patent_number":"US-9729839","title":"Discharge lamp drive device, projector, and discharge lamp drive method","assignee":null,"inventors":[],"filing_date":"2015-12-29T00:00:00.000Z","publication_date":"2017-08-08T00:00:00.000Z","cpc_codes":["H04N"],"num_claims":17,"abstract":"A discharge lamp drive device includes a resonant circuit section connected to a discharge lamp, a power conversion section configured to convert direct-current power into alternating-current power, and supply the discharge lamp with the alternating-current power via the resonant circuit section, and a control section configured to supply the discharge lamp with the alternating-current power having a first frequency and a second frequency higher than the first frequency in a lighting start period until the discharge lamp reaches a steady lighting state, the first frequency is a frequency for causing a resonance of the resonant circuit section, and the second frequency is a quasi-resonant frequency."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Discharge lamp drive device, projector, and discharge lamp drive method","description":"A discharge lamp drive device includes a resonant circuit section connected to a discharge lamp, a power conversion section configured to convert direct-current power into alternating-current power, a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9729839","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-9729839","citation_suggestion":"Patentable. \"Discharge lamp drive device, projector, and discharge lamp drive method\" (US-9729839). https://patentable.app/patents/US-9729839","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9729839","json":"https://patentable.app/api/llm-context/US-9729839","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:40:49.623Z"}