{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9715943","patent":{"patent_number":"US-9715943","title":"Semiconductor memory cell multi-write avoidance encoding apparatus, systems and methods","assignee":null,"inventors":[],"filing_date":"2015-08-12T00:00:00.000Z","publication_date":"2017-07-25T00:00:00.000Z","cpc_codes":["G11C","G11C","G11C","G11C","G11C","G11C","G11C","G11C","G11C"],"num_claims":20,"abstract":"Data words to be written to a memory location are delta encoded in multi-write avoidance (“MWA”) code words. MWA code words result in no re-writing of single-bit storage cells containing logical “0's” to a “0” state and no re-writing of logical “1's” to cells that have already been written once to a logical “1.” Potential MWA code words stored in a look-up table (“LUT”) are indexed by a difference word DELTA_D. DELTA_D represents a bitwise difference (“delta”) between a data word currently stored at the memory location and a new data word (“NEW_D”) to be stored at the memory location. Validation and selection logic chooses an MWA code word representing NEW_D to be written if the MWA code word does not violate the principle of multi-write avoidance. Some embodiments generate the MWA code words using a pattern generator rather than indexing the MWA code words from a LUT."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Semiconductor memory cell multi-write avoidance encoding apparatus, systems and methods","description":"Data words to be written to a memory location are delta encoded in multi-write avoidance (“MWA”) code words. MWA code words result in no re-writing of single-bit storage cells containing logical “0's”","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9715943","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-9715943","citation_suggestion":"Patentable. \"Semiconductor memory cell multi-write avoidance encoding apparatus, systems and methods\" (US-9715943). https://patentable.app/patents/US-9715943","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9715943","json":"https://patentable.app/api/llm-context/US-9715943","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:01:59.271Z"}