{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8531437","patent":{"patent_number":"US-8531437","title":"Handwriting input system","assignee":null,"inventors":[],"filing_date":"2010-02-26T00:00:00.000Z","publication_date":"2013-09-10T00:00:00.000Z","cpc_codes":["G06F","G06F","G06V"],"num_claims":15,"abstract":"A handwriting input system includes a handwriting input device, a visible light sensing member, an infrared sensing member, and a receiving member. The handwriting input device includes a writing head and an infrared light source adjacent to the writing head. The writing head is capable of leaving color distinguishable traces on an object. The visible light sensing member is configured for capturing images of handwriting traces. The infrared sensing member is configured for capturing images of movement track of the infrared light source. The visible light sensing member and the infrared sensing member are slidably installed on the receiving member."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Handwriting input system","description":"A handwriting input system includes a handwriting input device, a visible light sensing member, an infrared sensing member, and a receiving member. The handwriting input device includes a writing head","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8531437","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-8531437","citation_suggestion":"Patentable. \"Handwriting input system\" (US-8531437). https://patentable.app/patents/US-8531437","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8531437","json":"https://patentable.app/api/llm-context/US-8531437","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T18:14:21.744Z"}