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:
Oct. 04, 2016

Filed:

May. 15, 2014
Applicant:

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

Inventors:

Daniel E. Tuers, Kapaa, HI (US);

Dana Lee, Saratoga, CA (US);

Abhijeet Manohar, Bangalore, IN;

Yosief Ataklti, Fremont, CA (US);

Assignee:

SanDisk Technologies LLC, Plano, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/10 (2006.01); G06F 9/44 (2006.01); G06F 3/06 (2006.01); G06F 12/02 (2006.01);
U.S. Cl.
CPC ...
G06F 9/4401 (2013.01); G06F 3/0601 (2013.01); G06F 12/0246 (2013.01); G06F 2212/1016 (2013.01); G06F 2212/7204 (2013.01); G06F 2212/7206 (2013.01);
Abstract

A storage controller is configured to find a last-written page in a block in a memory by sending a command to the memory to read a page of data, receiving at least some of the data from that page, and analyzing the at least some of the data from that page to determine if that page is a written page. In one embodiment, the storage controller instructs the memory to read the page of data using a sense time that is shorter than a sense time used to read a page of data in response to a read request from a host controller. Additionally or alternatively, the amount of the data received by the storage controller can be less than the amount of data received when reading a page of data in response to a read request from a host controller.


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