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:
Oct. 16, 2018

Filed:

Aug. 17, 2017
Applicant:

Silicon Motion Inc., Hsinchu County, TW;

Inventors:

Tsung-Chieh Yang, Hsinchu, TW;

Hsiao-Te Chang, Hsinchu County, TW;

Wen-Long Wang, Hsinchu, TW;

Assignee:

Silicon Motion Inc., Hsinchu County, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/56 (2006.01); G06F 3/06 (2006.01); G11C 16/08 (2006.01); G11C 16/26 (2006.01);
U.S. Cl.
CPC ...
G11C 11/5642 (2013.01); G06F 3/0604 (2013.01); G06F 3/0622 (2013.01); G06F 3/0629 (2013.01); G06F 3/0638 (2013.01); G06F 3/0679 (2013.01); G11C 11/5628 (2013.01); G11C 16/08 (2013.01); G11C 16/26 (2013.01);
Abstract

A memory access module for performing memory access management of a storage device includes a plurality of storage cells. Each storage cell has a number of possible bit(s) directly corresponding to possible states of the storage cell. The memory access module further includes: a read only memory for storing a program code; and a microprocessor, coupled to the read only memory, for executing the program code to perform the following steps: performing a plurality of sensing operations, wherein a first sensing operation corresponds to a first sensing voltage, and each subsequent sensing operation corresponds to a sensing voltage determined according to a result of the previous sensing operation; using the plurality of sensing operations to generate a first digital value and a second digital value of a storage cell; using the first and the second digital value to obtain soft information of a same bit stored in the storage cell; and using the soft information to perform soft decoding.


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