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:
May. 27, 2014

Filed:

Oct. 01, 2013
Applicant:

Marvell International Ltd., Hamilton, BM;

Inventors:

Chen Kuo Huang, Sunnyvale, CA (US);

Sui-Hung Fred Au, Fremont, CA (US);

Xueshi Yang, Cupertino, CA (US);

Lau Nguyen, Sunnyvale, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01); G06F 11/10 (2006.01); G06F 11/07 (2006.01);
U.S. Cl.
CPC ...
G11C 29/72 (2013.01); G06F 11/1068 (2013.01); G06F 11/07 (2013.01);
Abstract

A system includes a flash memory, an encoder, a first interface, a decoder and a controller. The encoder is configured to (i) receive data, and (ii) encode the data based on an error correction code. The first interface is configured to (i) write the encoded data to a memory cells in the flash memory, and (ii) read the encoded data back from the memory cells. The decoder is configured to (i) decode the encoded data read back from the memory cells, and (ii) based on the decoded data, determine a number of decoding errors for the plurality of memory cells. The controller is configured to, in response to the number of decoding errors being greater than or equal to a first threshold, cease accessing the memory cells. The first threshold is less than a maximum number of errors correctable by the error correction code for the memory cells.


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