{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9720616","patent":{"patent_number":"US-9720616","title":"Data-retention controller/driver for stand-alone or hosted card reader, solid-state-drive (SSD), or super-enhanced-endurance SSD (SEED)","assignee":null,"inventors":[],"filing_date":"2015-11-09T00:00:00.000Z","publication_date":"2017-08-01T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G11C","G11C","G11C","G11C"],"num_claims":12,"abstract":"A Green NAND SSD Driver (GNSD) driver executes on a host to increase data-retention of flash memory attached to a Super Enhanced Endurance Device (SEED) or Solid-State Drive (SSD). Host accesses to flash are intercepted by the GNSD driver using upper and lower-level filter drivers. A retention-check timer causes a retention routine to be periodically executed. The routine sends high-level commands to the SEED that causes the SEED to refresh either all data or just data blocks with older write dates. Data is refreshed by moving to a new physical block. The retention routine can track write dates of logical blocks and command a SSD to move logical blocks with older write dates. A retention card has a controller that performs the retention routine when not connected to a host, while a SEED power card allows the SEED to refresh data when no host is attached to the SEED."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Data-retention controller/driver for stand-alone or hosted card reader, solid-state-drive (SSD), or super-enhanced-endurance SSD (SEED)","description":"A Green NAND SSD Driver (GNSD) driver executes on a host to increase data-retention of flash memory attached to a Super Enhanced Endurance Device (SEED) or Solid-State Drive (SSD). Host accesses to fl","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9720616","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-9720616","citation_suggestion":"Patentable. \"Data-retention controller/driver for stand-alone or hosted card reader, solid-state-drive (SSD), or super-enhanced-endurance SSD (SEED)\" (US-9720616). https://patentable.app/patents/US-9720616","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9720616","json":"https://patentable.app/api/llm-context/US-9720616","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:22:22.143Z"}