The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 28, 2021

Filed:

Apr. 22, 2020
Applicant:

Silicon Motion, Inc., Hsinchu County, TW;

Inventors:

Jian-Dong Du, Taoyuan, TW;

Pi-Ju Tsai, New Taipei, TW;

Assignee:

Silicon Motion, Inc., Hsinchu County, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G11C 11/56 (2006.01); G11C 16/04 (2006.01); G11C 16/26 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0659 (2013.01); G06F 3/0604 (2013.01); G06F 3/0679 (2013.01); G11C 11/5642 (2013.01); G11C 16/0483 (2013.01); G11C 16/26 (2013.01);
Abstract

The present invention discloses a method for accessing a flash memory module, wherein the flash memory module comprises a plurality of block, each block is implemented by a plurality of word lines, and each word line comprises a plurality of memory cells supporting a plurality of states. The method comprises the steps of: reading the memory cells of at least a first word line of a specific block of the plurality of blocks to obtain a cumulative distribution information of the states of the memory cells; determining a target decoding flow selected from at least a first decoding flow and a second decoding flow according to the cumulative distribution information; reading the memory cells of a second word line to obtain readout information of the second word line; and using the target decoding flow to decode the readout information of the second word line.


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