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:
Jul. 27, 2021

Filed:

Nov. 13, 2019
Applicant:

Silicon Motion, Inc., Hsinchu County, TW;

Inventors:

Jian-Dong Du, Taoyuan, TW;

Chia-Jung Hsiao, New Taipei, TW;

Tsung-Chieh Yang, Hsinchu, TW;

Assignee:

Silicon Motion, Inc., Hsinchu County, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/4093 (2006.01); G11C 11/4074 (2006.01); G06F 12/02 (2006.01); G06F 12/0882 (2016.01); G11C 11/4099 (2006.01); G06F 13/16 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0246 (2013.01); G06F 12/0882 (2013.01); G06F 13/1689 (2013.01); G11C 11/4074 (2013.01); G11C 11/4093 (2013.01); G11C 11/4099 (2013.01);
Abstract

The present invention provides a flash memory controller, wherein the flash memory controller is arranged to access a flash memory module, and the flash memory controller includes a ROM, a microprocessor and a timer. The ROM stores a program code, the microprocessor is configured to execute the program code to control the access of the flash memory module, and the timer is used to generate time information. In the operations of the flash memory controller, the microprocessor refers to the time information to perform dummy read operations upon at least a portion of the blocks, wherein the dummy read operations are not triggered by read commands from a host device.


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