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:
Sep. 29, 2015

Filed:

Aug. 01, 2013
Applicant:

Smart Storage Systems, Inc., Chandler, AZ (US);

Inventors:

James Fitzpatrick, Sudbury, MA (US);

Mark Dancho, Chandler, AZ (US);

James M. Higgins, Chandler, AZ (US);

Robert W. Ellis, Phoenix, AZ (US);

Assignee:

SMART STORAGE SYSTEMS, INC., Milipitas, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G11C 11/56 (2006.01); G11C 16/06 (2006.01); G11C 16/26 (2006.01); G11C 16/34 (2006.01);
U.S. Cl.
CPC ...
G06F 12/00 (2013.01); G11C 11/5642 (2013.01); G11C 16/06 (2013.01); G11C 16/26 (2013.01); G11C 16/349 (2013.01); G11C 16/3454 (2013.01);
Abstract

A system and method of operation of a data storage system includes: a memory die for determining a middle read threshold; a control unit, coupled to the memory die, for calculating a lower read threshold and an upper read threshold based on the middle read threshold and a memory element age; and a memory interface, coupled to the memory die, for reading a memory page of the memory die using the lower read threshold, the middle read threshold, or the upper read threshold for compensating for a charge variation.


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