{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8464131","patent":{"patent_number":"US-8464131","title":"Reading a flash memory by constrained decoding","assignee":null,"inventors":[],"filing_date":"2009-12-23T00:00:00.000Z","publication_date":"2013-06-11T00:00:00.000Z","cpc_codes":["G11C","G06F","G11C","G11C"],"num_claims":13,"abstract":"To read memory cells that have been programmed to store an ECC codeword, with each cell storing a respective plurality of bits of the codeword, a respective value of an operational parameter such as a threshold voltage of each cell is measured. Each bit is assigned a respective metric, such as a LLR estimate of the bit, based at least in part on the respective value of the operational parameter of the bit's cell. The metrics are decoded with reference both to the ECC and to mutual constraints of the metrics within each cell that are independent of the ECC."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Reading a flash memory by constrained decoding","description":"To read memory cells that have been programmed to store an ECC codeword, with each cell storing a respective plurality of bits of the codeword, a respective value of an operational parameter such as a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8464131","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-8464131","citation_suggestion":"Patentable. \"Reading a flash memory by constrained decoding\" (US-8464131). https://patentable.app/patents/US-8464131","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8464131","json":"https://patentable.app/api/llm-context/US-8464131","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T11:14:12.374Z"}