MEMORY SYSTEM WITH READ THRESHOLD ESTIMATION AND OPERATING METHOD THEREOF

An apparatus of a memory system and an operating method thereof includes a plurality of memory devices; and a controller coupled to the plurality of memory devices, wherein the controller is configured to perform a symmetric OVS read with at least an initial read threshold, and create a symmetric re...

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Bibliographic Details
Main Authors PIGNATELLI David, ZHANG Fan
Format Patent
LanguageEnglish
Published 15.02.2018
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
INFORMATION STORAGE
PHYSICS
STATIC STORES
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Summary:An apparatus of a memory system and an operating method thereof includes a plurality of memory devices; and a controller coupled to the plurality of memory devices, wherein the controller is configured to perform a symmetric OVS read with at least an initial read threshold, and create a symmetric read result; perform an asymmetric OVS read with at least the initial read threshold, and create an asymmetric read result; adjust the initial read threshold according to at least the symmetric read result and asymmetric read result, and create an optimal read threshold; and execute data recovery process with the optimal read threshold.
Bibliography:Application Number: US201715663527