{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9703989","patent":{"patent_number":"US-9703989","title":"Secure physically unclonable function (PUF) error correction","assignee":null,"inventors":[],"filing_date":"2014-12-23T00:00:00.000Z","publication_date":"2017-07-11T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L"],"num_claims":13,"abstract":"An integrated circuit having a Physically Unclonable Function (PUF) circuit is provided. The PUF circuit may be part of a secure subsystem, which also includes a random number generator, a syndrome generator, non-volatile memory, and control circuitry. A predetermined syndrome of a desired PUF response is stored in the non-volatile memory. During normal operation, a current PUF response may be read out from the PUF circuit. The current PUF response may differ from the desired PUF response. The random number generator may generate a random number that masks the current PUF response, whereas the syndrome generator outputs a syndrome of the current PUF response. This information may then be passed to an error-correcting code (ECC) processor. The ECC processor may return information to the secure subsystem. The control circuitry may then obtain a corrected PUF response that matches the desired PUF response."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Secure physically unclonable function (PUF) error correction","description":"An integrated circuit having a Physically Unclonable Function (PUF) circuit is provided. The PUF circuit may be part of a secure subsystem, which also includes a random number generator, a syndrome ge","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9703989","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-9703989","citation_suggestion":"Patentable. \"Secure physically unclonable function (PUF) error correction\" (US-9703989). https://patentable.app/patents/US-9703989","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9703989","json":"https://patentable.app/api/llm-context/US-9703989","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:35:16.332Z"}