{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9591158","patent":{"patent_number":"US-9591158","title":"System and method for document size detection in a document reproduction device","assignee":null,"inventors":[],"filing_date":"2015-06-02T00:00:00.000Z","publication_date":"2017-03-07T00:00:00.000Z","cpc_codes":["H04N","H04N","H04N","H04N","H04N","H04N"],"num_claims":23,"abstract":"What is disclosed is a system for determining the size of a document on a platen of a document scanning device. In one embodiment, the scanning device comprises in part: a transparent pane (platen) whereon a hardcopy print is placed; a scan head comprising optical sensors which output a signal comprising an image of that hardcopy print; a plurality of LEDs positioned such that a topside of the platen is illuminated; and a processor for instructing the scan head to pre-scan the print. During the pre-scan, optical sensors comprising the scan head sense light from the LEDs of areas of the platen not covered by the hardcopy print at a first intensity and sense light from the LEDs of areas of the platen which are covered by the print at a second intensity. The processor determines the size of the hardcopy print from the first and second intensity levels."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System and method for document size detection in a document reproduction device","description":"What is disclosed is a system for determining the size of a document on a platen of a document scanning device. In one embodiment, the scanning device comprises in part: a transparent pane (platen) wh","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9591158","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-9591158","citation_suggestion":"Patentable. \"System and method for document size detection in a document reproduction device\" (US-9591158). https://patentable.app/patents/US-9591158","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9591158","json":"https://patentable.app/api/llm-context/US-9591158","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:42:27.079Z"}