{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9721643","patent":{"patent_number":"US-9721643","title":"Row hammer monitoring based on stored row hammer threshold value","assignee":null,"inventors":[],"filing_date":"2016-06-01T00:00:00.000Z","publication_date":"2017-08-01T00:00:00.000Z","cpc_codes":["G11C","G06F","G11C","G11C","G11C","G11C","G11C","G11C"],"num_claims":27,"abstract":"Detection logic of a memory subsystem obtains a threshold for a memory device that indicates a number of accesses within a time window that causes risk of data corruption on a physically adjacent row. The detection logic obtains the threshold from a register that stores configuration information for the memory device, and can be a register on the memory device itself and/or can be an entry of a configuration storage device of a memory module to which the memory device belongs. The detection logic determines whether a number of accesses to a row of the memory device exceeds the threshold. In response to detecting the number of accesses exceeds the threshold, the detection logic can generate a trigger to cause the memory device to perform a refresh targeted to a physically adjacent victim row."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Row hammer monitoring based on stored row hammer threshold value","description":"Detection logic of a memory subsystem obtains a threshold for a memory device that indicates a number of accesses within a time window that causes risk of data corruption on a physically adjacent row.","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9721643","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-9721643","citation_suggestion":"Patentable. \"Row hammer monitoring based on stored row hammer threshold value\" (US-9721643). https://patentable.app/patents/US-9721643","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9721643","json":"https://patentable.app/api/llm-context/US-9721643","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:22:25.916Z"}