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. 22, 2018

Filed:

Sep. 15, 2016
Applicants:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Toshiba Solutions Corporation, Kawasaki-shi, JP;

Inventor:

Kazunori Sekido, Kunitachi, JP;

Assignees:

KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;

TOSHIBA SOLUTIONS CORPORATION, Kawasaki-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/00 (2006.01); G06F 3/06 (2006.01); G06F 12/06 (2006.01); G06F 12/16 (2006.01); G06F 12/1009 (2016.01); G11C 16/10 (2006.01); G11C 16/34 (2006.01); G06F 12/02 (2006.01); G11C 16/16 (2006.01); G11C 16/04 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0616 (2013.01); G06F 3/0608 (2013.01); G06F 3/0652 (2013.01); G06F 3/0679 (2013.01); G06F 12/0246 (2013.01); G06F 12/06 (2013.01); G06F 12/1009 (2013.01); G06F 12/16 (2013.01); G11C 16/10 (2013.01); G11C 16/3495 (2013.01); G06F 2212/1036 (2013.01); G06F 2212/2022 (2013.01); G06F 2212/7201 (2013.01); G06F 2212/7205 (2013.01); G06F 2212/7208 (2013.01); G06F 2212/7211 (2013.01); G11C 16/0483 (2013.01); G11C 16/16 (2013.01); G11C 2211/5648 (2013.01);
Abstract

According to one embodiment, a storage device includes a storage, first data in which a sequence number indicating a write-completion order is associated with each erase unit area included in areas of the storage, second data indicating a relationship between each write interval and each write destination, a selection module which obtains the erase unit area corresponding to a logical address of target data to be written, calculates a write interval of the target data from a difference between the sequence number at an occurrence time of writing and the sequence number corresponding to the erase unit area of the first data, and selects the write destination corresponding to the write interval of the target data, and a write module which writes the target data to the selected write destination, and changes the sequence number when writing is completed for one erase unit area.


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