{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9626748","patent":{"patent_number":"US-9626748","title":"Projector and method for controlling the same","assignee":null,"inventors":[],"filing_date":"2013-06-20T00:00:00.000Z","publication_date":"2017-04-18T00:00:00.000Z","cpc_codes":["G06T","G06T","H04N"],"num_claims":17,"abstract":"A filter coefficient calculation portion detects a maximum and a minimum of a pixel-basis deformation factor representing the degree of deformation due to trapezoidal distortion and calculates filter coefficients corresponding to a plurality of deformation factors in accordance with the range of the deformation factors (minimum to maximum). The filter coefficients are corrected by multiplying the calculated filter coefficients by a luminance correction coefficient for correcting luminance deviation due to the trapezoidal distortion, and the corrected filter coefficients are stored in a filter coefficient storage portion. A deformation factor calculation portion calculates the deformation factor in a pixel to be processed by a filter operation portion, and the filter operation portion reads the filter coefficient corresponding to the deformation factor calculated by the deformation factor calculation portion from a filter coefficient storage portion. The filter operation portion then performs filtering."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Projector and method for controlling the same","description":"A filter coefficient calculation portion detects a maximum and a minimum of a pixel-basis deformation factor representing the degree of deformation due to trapezoidal distortion and calculates filter ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9626748","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-9626748","citation_suggestion":"Patentable. \"Projector and method for controlling the same\" (US-9626748). https://patentable.app/patents/US-9626748","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9626748","json":"https://patentable.app/api/llm-context/US-9626748","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:15:42.623Z"}