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.
Patent No.:
Date of Patent:
May. 12, 2020
Filed:
Aug. 24, 2017
Applicant:
Toshiba Memory Corporation, Tokyo, JP;
Inventors:
Satoshi Arai, Yokohama Kanagawa, JP;
Shunitsu Kohara, Yokohama Kanagawa, JP;
Kazuya Kitsunai, Fujisawa Kanagawa, JP;
Yoshihisa Kojima, Kawasaki Kanagawa, JP;
Hiroyuki Nemoto, Tokyo, JP;
Assignee:
Toshiba Memory Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/02 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0246 (2013.01); G06F 3/0608 (2013.01); G06F 3/0611 (2013.01); G06F 3/0632 (2013.01); G06F 3/0634 (2013.01); G06F 3/0644 (2013.01); G06F 3/0659 (2013.01); G06F 3/0679 (2013.01); G06F 3/0688 (2013.01); G06F 2212/1024 (2013.01); G06F 2212/1048 (2013.01); G06F 2212/7201 (2013.01); G06F 2212/7207 (2013.01);
Abstract
A storage device includes a nonvolatile memory, and a controller configured to perform, in response to commands from the host device, a read operation and a write operation on the nonvolatile memory. The controller divides a logical address space of the storage device into a plurality of subspaces and manages a priority value for each of the subspaces, the priority values of the subspaces determining an order for setting up the subspaces upon start-up of the storage device.