{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11495300","patent":{"patent_number":"US-11495300","title":"Method and apparatus for PUF generator characterization","assignee":null,"inventors":[],"filing_date":"2020-09-08T00:00:00.000Z","publication_date":"2022-11-08T00:00:00.000Z","cpc_codes":["G11C","G06F","G11C","H04L","H04L","G11C","G11C","G11C","G11C","H04L","H04L"],"num_claims":20,"abstract":"Disclosed is a physical unclonable function generator circuit and testing method. In one embodiment, a testing method for physical unclonable function (PUF) generator includes: verifying a functionality of a PUF generator by writing preconfigured logical states to and reading output logical states from a plurality of bit cells in a PUF cell array; determining a first number of first bit cells in the PUF cell array, wherein the output logical states of the first bit cells are different from the preconfigured logical states; when the first number of first bit cells is less than a first predetermined number, generating a first map under a first set of operation conditions using the PUF generator and a masking circuit, generating a second map under a second set of operation conditions using the PUF generator and the masking circuit, determining a second number of second bit cells, wherein the second bit cells are stable in the first map and unstable in the second map; when the second number of second bit cells is determined to be zero, determining a third number of third bit cells, wherein the third bit cells are stable in the first map and stable in the second map; and when the third number of third bit cells are greater than a second preconfigured number, the PUF generator is determined as a qualified PUF generator."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for PUF generator characterization","description":"Disclosed is a physical unclonable function generator circuit and testing method. In one embodiment, a testing method for physical unclonable function (PUF) generator includes: verifying a functionali","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11495300","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-11495300","citation_suggestion":"Patentable. \"Method and apparatus for PUF generator characterization\" (US-11495300). https://patentable.app/patents/US-11495300","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11495300","json":"https://patentable.app/api/llm-context/US-11495300","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T16:24:25.446Z"}