{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11272148","patent":{"patent_number":"US-11272148","title":"Control method for projector and projector","assignee":null,"inventors":[],"filing_date":"2021-01-28T00:00:00.000Z","publication_date":"2022-03-08T00:00:00.000Z","cpc_codes":["H04N","G06F","H04N","H04N","H04N"],"num_claims":7,"abstract":"An image including an input field for a password is projected onto a screen by a projection device including an optical system for adjusting a focal length and projection range. A control signal transmitted from a remote controller is received by at least one of a first receiving device and a second receiving device. A character of the password input to the input field is determined from the control signal by a control circuit. The projection device is controlled to project, according to a combination a size a projection surface in the screen calculated from the focal length and the projection range and a position of the remote controller determined from the control signal, a reduced character obtained by reducing a size of the character to a size smaller than a reference size in the input field."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Control method for projector and projector","description":"An image including an input field for a password is projected onto a screen by a projection device including an optical system for adjusting a focal length and projection range. A control signal trans","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11272148","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-11272148","citation_suggestion":"Patentable. \"Control method for projector and projector\" (US-11272148). https://patentable.app/patents/US-11272148","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11272148","json":"https://patentable.app/api/llm-context/US-11272148","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T17:47:16.134Z"}