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:
Mar. 17, 2015

Filed:

Dec. 15, 2011
Applicants:

Joseph Edward Halpern, Iii, Santa Clara, CA (US);

Henry Hutton, Tracy, CA (US);

Judah Gamliel Hahn, Ofra, IL;

Moshe Raz, Kefar Rosh Hanikra, IL;

In-soo Yoon, Seoul, KR;

Inventors:

Joseph Edward Halpern, III, Santa Clara, CA (US);

Henry Hutton, Tracy, CA (US);

Judah Gamliel Hahn, Ofra, IL;

Moshe Raz, Kefar Rosh Hanikra, IL;

In-Soo Yoon, Seoul, KR;

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/06 (2006.01); G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
G06F 17/30218 (2013.01);
Abstract

A method and system are disclosed that permit a host application to obtain cluster location data, for example logical addresses associated with the clusters of a file, and a host application to communicate the logical block address mapping information to firmware of a storage device. The method includes the host transmitting one or more clusters or partial clusters having a signature to the storage device where the storage device knows or has been instructed to look for the signature. The storage device may receive clusters having a signature and, responsive to a host request, return logical address information to a host for the location in the storage device of the marked clusters. The host may parse a data structure on the storage device to obtain remaining cluster location information using a file's first cluster location or may request that the storage device return the cluster location information.


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