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Soft-decision input generation for data storage systems

專利號
US11175983B2
公開日期
2021-11-16
申請人
Western Digital Technologies, Inc.（US CA San Jose）
發(fā)明人
Guangming Lu; Kent D. Anderson; Anantha Raman Krishnan; Shafa Dahandeh
IPC分類
G06F11/10
技術領域
bit,llr,memory,decision,read,may,in,reads,page,soft
地域： CA CA San Jose

摘要

An error management system for a data storage device can generate soft-decision log-likelihood ratios (LLRs) using multiple reads of memory locations. Bit patterns provided by multiple reads of reference memory locations can be counted and used to generate probability data that is used to generate possible LLR values for decoding target pages. Possible LLR values are stored in one or more look-up tables.

說明書

Reference E-Page Bit Stream Correct Data 0 1 0 0 1 0 R0 0 1 0 0 0 0 R1 0 1 1 1 1 0 R2 1 1 1 1

權利要求

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