{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9716824","patent":{"patent_number":"US-9716824","title":"Focus detection apparatus and focus detection method","assignee":null,"inventors":[],"filing_date":"2016-06-06T00:00:00.000Z","publication_date":"2017-07-25T00:00:00.000Z","cpc_codes":["H04N","H04N"],"num_claims":8,"abstract":"A focus detection apparatus according the present invention includes: a normal focus detection information acquiring section which detects a normal AF evaluation peak position from contrast information; a special focus detection information acquiring section which detects a special AF evaluation peak position among different focus positions using brightness information and the contrast information; a determination section which determines information to be used for focus detection using the brightness information and either of the normal AF evaluation peak position and the special AF evaluation peak position, and a focus detection calculation section which calculates a focus detection position using the information to be used for focus detection determined by the determination section."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Focus detection apparatus and focus detection method","description":"A focus detection apparatus according the present invention includes: a normal focus detection information acquiring section which detects a normal AF evaluation peak position from contrast informatio","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9716824","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-9716824","citation_suggestion":"Patentable. \"Focus detection apparatus and focus detection method\" (US-9716824). https://patentable.app/patents/US-9716824","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9716824","json":"https://patentable.app/api/llm-context/US-9716824","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:54:57.270Z"}