Incremental LLR generation for flash memories

Methods for decoding information stored on a memory may include performing a hard read at an initial threshold and determining a first distribution percentage, performing a hard read at a subsequent threshold and determining a second distribution percentage, generating a log-likelihood ratio (LLR) b...

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Bibliographic Details
Main Authors Lee, June, Pignatelli, David J, Zhang, Fan
Format Patent
LanguageEnglish
Published 04.12.2018
Subjects
BASIC ELECTRONIC CIRCUITRY
CALCULATING
CODE CONVERSION IN GENERAL
CODING
COMPUTING
COUNTING
DECODING
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
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Summary:Methods for decoding information stored on a memory may include performing a hard read at an initial threshold and determining a first distribution percentage, performing a hard read at a subsequent threshold and determining a second distribution percentage, generating a log-likelihood ratio (LLR) based on the hard reads performed at the initial and subsequent thresholds, and based on the first and second distribution percentages, and soft decoding the information based on the generated LLR.
Bibliography:Application Number: US201615072009