{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10490223","patent":{"patent_number":"US-10490223","title":"Magnetic disk device and refresh processing method","assignee":null,"inventors":[],"filing_date":"2018-08-17T00:00:00.000Z","publication_date":"2019-11-26T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B"],"num_claims":5,"abstract":"According to one embodiment, a magnetic disk device includes a disk, a head that writes data to the disk and reads data from the disk, and a controller. The controller is configured to read first data written on the disk, measure a first read error rate of the first data, determine a difference in the first read error rate from a previously determined read error rate of the first data, determine a current read error rate for second data written on the disk based on the difference in the first read error rate from the previously determined read error rate, and determine whether a refresh process is performed on the second data based on the current error rate."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Magnetic disk device and refresh processing method","description":"According to one embodiment, a magnetic disk device includes a disk, a head that writes data to the disk and reads data from the disk, and a controller. The controller is configured to read first data","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10490223","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-10490223","citation_suggestion":"Patentable. \"Magnetic disk device and refresh processing method\" (US-10490223). https://patentable.app/patents/US-10490223","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10490223","json":"https://patentable.app/api/llm-context/US-10490223","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T20:32:32.994Z"}