{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8531425","patent":{"patent_number":"US-8531425","title":"Multi-touch input discrimination","assignee":null,"inventors":[],"filing_date":"2012-07-27T00:00:00.000Z","publication_date":"2013-09-10T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","G06F","G06F","G06F","G06T","G06V","G09G","G09G","G09G","G06F","G06F","G06F","G09G","G09G","G09G","G09G","G09G","G09G"],"num_claims":40,"abstract":"Techniques for identifying and discriminating between different types of contacts to a multi-touch touch-screen device are described. Illustrative contact types include fingertips, thumbs, palms and cheeks. By way of example, thumb contacts may be distinguished from fingertip contacts using a patch eccentricity parameter. In addition, by non-linearly deemphasizing pixels in a touch-surface image, a reliable means of distinguishing between large objects (e.g., palms) from smaller objects (e.g., fingertips, thumbs and a stylus) is described."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Multi-touch input discrimination","description":"Techniques for identifying and discriminating between different types of contacts to a multi-touch touch-screen device are described. Illustrative contact types include fingertips, thumbs, palms and c","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8531425","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-8531425","citation_suggestion":"Patentable. \"Multi-touch input discrimination\" (US-8531425). https://patentable.app/patents/US-8531425","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8531425","json":"https://patentable.app/api/llm-context/US-8531425","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T08:37:56.971Z"}