{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11528460","patent":{"patent_number":"US-11528460","title":"Method of automatic keystone correction for projector system","assignee":null,"inventors":[],"filing_date":"2021-10-24T00:00:00.000Z","publication_date":"2022-12-13T00:00:00.000Z","cpc_codes":["H04N","H04N"],"num_claims":20,"abstract":"An automatic keystone correction method for projector system includes obtaining full field of view coordinates of a projecting picture being projected to a plane by a time of flight (TOF) ranging device as a first reference picture, utilizing the Gravity sensor to calibrate TOF scanning time deviation, and constructing a motion virtual line of a fixed field of view (FOV) through calibrating its horizontal and vertical angle to implement a rectangle adjustment function."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method of automatic keystone correction for projector system","description":"An automatic keystone correction method for projector system includes obtaining full field of view coordinates of a projecting picture being projected to a plane by a time of flight (TOF) ranging devi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11528460","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-11528460","citation_suggestion":"Patentable. \"Method of automatic keystone correction for projector system\" (US-11528460). https://patentable.app/patents/US-11528460","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11528460","json":"https://patentable.app/api/llm-context/US-11528460","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T13:16:11.768Z"}