{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9671971","patent":{"patent_number":"US-9671971","title":"Managing prior versions of data for logical addresses in a storage device","assignee":null,"inventors":[],"filing_date":"2015-03-27T00:00:00.000Z","publication_date":"2017-06-06T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F"],"num_claims":25,"abstract":"Provided are a method, system, and computer readable storage medium for managing access to a storage device. A logical-to-physical mapping indicates for each logical address a physical address in the storage device having current data for the logical address and version information indicating whether there is a prior version of data for the logical address. In response to the logical-to-physical mapping indicating that there is no prior version of the data for a target logical address of a write, including information on the target physical address and the physical address indicated in the logical-to-physical mapping in checkpoint information. The version information for the target logical address is updated to indicate that there is a prior version of data. Data for the write is written to a target physical address. The logical-to-physical mapping for the target logical address is updated to indicate the target physical address."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Managing prior versions of data for logical addresses in a storage device","description":"Provided are a method, system, and computer readable storage medium for managing access to a storage device. A logical-to-physical mapping indicates for each logical address a physical address in the ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9671971","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-9671971","citation_suggestion":"Patentable. \"Managing prior versions of data for logical addresses in a storage device\" (US-9671971). https://patentable.app/patents/US-9671971","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9671971","json":"https://patentable.app/api/llm-context/US-9671971","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:21:46.906Z"}