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.
Patent No.:
Date of Patent:
Sep. 15, 2020
Filed:
Dec. 21, 2018
Applicant:
Silicon Motion, Inc., Jhubei, Hsinchu County, TW;
Inventor:
Wen-Sheng Lin, Kaohsiung, TW;
Assignee:
SILICON MOTION, INC., Jhubei, Hsinchu County, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/02 (2006.01); G06F 3/06 (2006.01); G06F 11/14 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0246 (2013.01); G06F 3/0604 (2013.01); G06F 3/065 (2013.01); G06F 3/0679 (2013.01); G06F 11/14 (2013.01);
Abstract
A power recovery technique for a data storage device having a non-volatile memory and a control unit is provided. When the data storage device regains power, the control unit writes dummy data to the nonvolatile memory, starting from the next page of a final page indicated by a final page indicator until the first word line group is finished. The first word line group contains an empty page indicated by an empty page indicator. In this manner, user data is protected from being written to an unreliable area.