{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8462421","patent":{"patent_number":"US-8462421","title":"System configurations and methods for controlling image projection apparatuses","assignee":null,"inventors":[],"filing_date":"2008-10-01T00:00:00.000Z","publication_date":"2013-06-11T00:00:00.000Z","cpc_codes":["G09G","G09G"],"num_claims":10,"abstract":"A projection apparatus comprising a light source for emitting incident light and a mirror device that includes a plurality of mirror elements each guiding the incident light to the ON position towards a projection light path under pulse width modulation (PWM) control corresponding to one frame or sub-frame or to the OFF state so as not to guide the incident light to a projection path. The light source is turned off outside the period in which the mirror element with the maximum brightness is in the ON state."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System configurations and methods for controlling image projection apparatuses","description":"A projection apparatus comprising a light source for emitting incident light and a mirror device that includes a plurality of mirror elements each guiding the incident light to the ON position towards","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8462421","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-8462421","citation_suggestion":"Patentable. \"System configurations and methods for controlling image projection apparatuses\" (US-8462421). https://patentable.app/patents/US-8462421","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8462421","json":"https://patentable.app/api/llm-context/US-8462421","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T12:25:49.944Z"}