{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10529434","patent":{"patent_number":"US-10529434","title":"Detecting power loss in NAND memory devices","assignee":null,"inventors":[],"filing_date":"2018-09-12T00:00:00.000Z","publication_date":"2020-01-07T00:00:00.000Z","cpc_codes":["G11C","G06F","G06F","G06F","G06F","G11C","G11C","G11C","G11C","G11C","G11C"],"num_claims":20,"abstract":"Devices and techniques for detecting power loss in NAND memory devices are disclosed herein. A memory controller may calibrate a first read level for a first physical page of a number of physical pages from an initial first read level position to a calibrated first read level position. The first read level may be between a first threshold voltage distribution corresponding to a first logical state of the at least four logical states and a second threshold voltage distribution corresponding to a second logical state of the at least four logical states. Also, the first threshold voltage distribution may be a highest threshold voltage distribution for the first physical page. The memory controller may calibrate a second read level for the first physical page that is lower than the first read level from an initial second read level position to a calibrated first read level position. The memory controller may determine to refresh at least one logical page stored at the first physical page based at least in part on a first read level difference between the initial first read level and the calibrated first read level and a second read level difference between the initial second read level and the calibrated second read level."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Detecting power loss in NAND memory devices","description":"Devices and techniques for detecting power loss in NAND memory devices are disclosed herein. A memory controller may calibrate a first read level for a first physical page of a number of physical page","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10529434","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-10529434","citation_suggestion":"Patentable. \"Detecting power loss in NAND memory devices\" (US-10529434). https://patentable.app/patents/US-10529434","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10529434","json":"https://patentable.app/api/llm-context/US-10529434","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T07:34:01.024Z"}