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:
Apr. 03, 2018

Filed:

Jul. 14, 2016
Applicant:

Silicon Motion, Inc., Jhubei, TW;

Inventors:

Chang-Hao Chiang, Zhubei, TW;

Kuo-Tung Huang, Gongguan Township, TW;

Yueh-Hsien Li, Hsinchu, TW;

De-Wei Lai, Hsinchu, TW;

Assignee:

Silicon Motion, Inc., Jhubei, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 11/34 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0619 (2013.01); G06F 3/064 (2013.01); G06F 3/065 (2013.01); G06F 3/0679 (2013.01); G06F 3/0688 (2013.01);
Abstract

A data storage device including a flash memory and a controller. The flash memory includes a plurality of blocks, and each of the blocks has a plurality of pages. The controller receives a write command which is arranged to write a plurality of data sectors into a plurality of first pages of a first block of the blocks, calculates an offset index according to a first erase count of the first block, retrieving a plurality of seeds from a random seed table according to the offset index, encodes the data sectors by using the retrieved seeds to obtain a plurality of encoded data sectors, and writes the encoded data sectors into the first pages.


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