{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9614671","patent":{"patent_number":"US-9614671","title":"User access control based on a graphical signature","assignee":null,"inventors":[],"filing_date":"2011-12-02T00:00:00.000Z","publication_date":"2017-04-04T00:00:00.000Z","cpc_codes":["H04L","H04L"],"num_claims":11,"abstract":"A user inputs a pattern consisting of a plurality of lines. The lines are classified by relative length, overall direction and degree of curvature. Where a line is started from a new position, the direction from the previous starting point is taken into account. The series of lines is then serialized into a key value, which may then be used to decrypt data stored on a device. This enables data to be securely stored since the key is supplied by the user at runtime and is not itself stored on the device."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"User access control based on a graphical signature","description":"A user inputs a pattern consisting of a plurality of lines. The lines are classified by relative length, overall direction and degree of curvature. Where a line is started from a new position, the dir","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9614671","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-9614671","citation_suggestion":"Patentable. \"User access control based on a graphical signature\" (US-9614671). https://patentable.app/patents/US-9614671","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9614671","json":"https://patentable.app/api/llm-context/US-9614671","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:19:40.387Z"}