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:
Jun. 23, 2015

Filed:

May. 17, 2011
Applicants:

William Wu, Cupertino, CA (US);

Sergey Anatolievich Gorobets, Edinburgh, GB;

Steven Sprouse, San Jose, CA (US);

Alan Bennett, Edinburgh, GB;

Inventors:

William Wu, Cupertino, CA (US);

Sergey Anatolievich Gorobets, Edinburgh, GB;

Steven Sprouse, San Jose, CA (US);

Alan Bennett, Edinburgh, GB;

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/08 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0871 (2013.01); G06F 12/0897 (2013.01); G06F 2212/2022 (2013.01); G06F 2212/214 (2013.01); G06F 2212/2515 (2013.01); G06F 2212/466 (2013.01); G06F 2212/6012 (2013.01);
Abstract

A method and system for cache management in a storage device is disclosed. A portion of unused memory in the storage device is used for temporary data cache so that two levels of cache may be used (such as a permanent data cache and a temporary data cache). The storage device may manage the temporary data cache in order to maintain clean entries in the temporary data cache. In this way, the storage area associated with the temporary data cache may be immediately reclaimed and retasked for a different purpose without the need for extraneous copy operations.


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