{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9710638","patent":{"patent_number":"US-9710638","title":"Unicode-based image generation and testing","assignee":null,"inventors":[],"filing_date":"2015-08-28T00:00:00.000Z","publication_date":"2017-07-18T00:00:00.000Z","cpc_codes":["G06F","G06F"],"num_claims":20,"abstract":"Systems and methods for testing to tell computers and humans apart and generating said tests are described. An interface is generated that includes a challenge and a response is provided, and a plurality of user selections of locations in the interface are received. A server compares the x coordinate and the y coordinate of each user selection with x and y coordinates for a subset of the plurality of characters in the response to obtain a distance value for each user selection. The server then sums the distance values for each user selection to obtain a total distance value. The server subsequently compares the total distance to a predetermined threshold, the server validating the user response when the total distance is less than the predetermined threshold, the validating causing access to be provided to web content specified in the user request."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Unicode-based image generation and testing","description":"Systems and methods for testing to tell computers and humans apart and generating said tests are described. An interface is generated that includes a challenge and a response is provided, and a plural","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9710638","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-9710638","citation_suggestion":"Patentable. \"Unicode-based image generation and testing\" (US-9710638). https://patentable.app/patents/US-9710638","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9710638","json":"https://patentable.app/api/llm-context/US-9710638","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:26:31.682Z"}