{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11303865","patent":{"patent_number":"US-11303865","title":"Projection device and auto-focus method thereof","assignee":null,"inventors":[],"filing_date":"2020-11-10T00:00:00.000Z","publication_date":"2022-04-12T00:00:00.000Z","cpc_codes":["H04N","H04N","H04N"],"num_claims":14,"abstract":"A projection device and an auto-focus method thereof are provided. The projection device includes a storage device, an image determining circuit, and an auto-focus circuit. The storage device is configured to temporarily store at least two image signals of image data in different time sequences. The image determining circuit is electrically connected to the storage device and is configured to access the image signals to determine whether a target image signal of the image signals meets an auto-focus condition, wherein the auto-focus condition includes the image determining circuit comparing the image signals to determine whether the target image signal is a static image, so as to correspondingly output a focusing signal. The auto-focus circuit is electrically connected to the image determining circuit and is configured to perform, according to the focusing signal, an auto-focus operation on an image projected by the projection device."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Projection device and auto-focus method thereof","description":"A projection device and an auto-focus method thereof are provided. The projection device includes a storage device, an image determining circuit, and an auto-focus circuit. The storage device is confi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11303865","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-11303865","citation_suggestion":"Patentable. \"Projection device and auto-focus method thereof\" (US-11303865). https://patentable.app/patents/US-11303865","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11303865","json":"https://patentable.app/api/llm-context/US-11303865","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T07:00:03.670Z"}