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. 18, 2017

Filed:

Aug. 28, 2014
Applicant:

Sandisk Technologies Inc., Plano, TX (US);

Inventors:

Lei Chen, Sunnyvale, CA (US);

Xinde Hu, San Jose, CA (US);

Zhenlei Shen, Milpitas, CA (US);

Yiwei Song, Union City, CA (US);

Gautam Dusija, Milpitas, CA (US);

Assignee:

SanDisk Technologies LLC, Plano, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/02 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0246 (2013.01); G06F 12/0253 (2013.01); G06F 2212/1016 (2013.01); G06F 2212/7205 (2013.01); G06F 2212/7208 (2013.01); G06F 2212/7211 (2013.01);
Abstract

Systems and methods for metablock relinking may be provided. A first physical block of a first metablock may be determined to have a different health than a second physical block of a second metablock based on health indicators of the first and second physical blocks. Each of the health indicators may indicate an extent to which a respective one of the first and second physical blocks may be written to and/or erased before the respective one of the first and second physical blocks becomes defective. The first physical block of the first metablock may be replaced with the second physical block of the second metablock based on a determination that the health of the first physical block of the first metablock is different than the health of the second physical block of the second metablock.


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