{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9734012","patent":{"patent_number":"US-9734012","title":"Data encoding in solid-state storage devices","assignee":null,"inventors":[],"filing_date":"2015-06-04T00:00:00.000Z","publication_date":"2017-08-15T00:00:00.000Z","cpc_codes":["G06F","G11C","G11C","G11C"],"num_claims":24,"abstract":"Methods and apparatus 3 are provided for encoding data for storage in multilevel memory cells 2 having q cell-levels. Input data words are encoded into respective codewords, each having N symbols with one of q symbol-values, via an encoding scheme adapted such that the q symbol-values have unequal multiplicities within at least some codewords, and the multiplicity of each of the q symbol-values in every codeword is no less than μ, where μ≧2 and more preferably ≧3. A first type of encoding scheme uses recursive symbol-flipping to enforce the μ-constraint, adding indicator symbols to indicate the flipped symbols. A second type of encoding scheme maps data words to codewords of a union of permutation codes, the initial vectors for these permutation codes being selected to enforce the μ-constraint. The N qary symbols of each codeword are supplied for storage in respective cells of the multilevel memory 2. "},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Data encoding in solid-state storage devices","description":"Methods and apparatus 3 are provided for encoding data for storage in multilevel memory cells 2 having q cell-levels. Input data words are encoded into respective codewords, each having N symbols with","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9734012","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-9734012","citation_suggestion":"Patentable. \"Data encoding in solid-state storage devices\" (US-9734012). https://patentable.app/patents/US-9734012","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9734012","json":"https://patentable.app/api/llm-context/US-9734012","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:16:26.643Z"}