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:
Mar. 29, 2022
Filed:
Dec. 30, 2019
Applicant:
Kioxia Corporation, Minato-ku, JP;
Inventors:
Kazuya Kitsunai, Kawasaki, JP;
Shinichi Kanno, Tokyo, JP;
Hirokuni Yano, Tokyo, JP;
Toshikatsu Hida, Kawasaki, JP;
Junji Yano, Yokohama, JP;
Assignee:
KIOXIA CORPORATION, Minato-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 12/02 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0604 (2013.01); G06F 3/064 (2013.01); G06F 3/0616 (2013.01); G06F 3/0619 (2013.01); G06F 3/0647 (2013.01); G06F 3/0652 (2013.01); G06F 3/0659 (2013.01); G06F 3/0679 (2013.01); G06F 3/0685 (2013.01); G06F 12/0246 (2013.01); G06F 2212/1036 (2013.01); G06F 2212/7202 (2013.01); G06F 2212/7205 (2013.01); G06F 2212/7211 (2013.01);
Abstract
A memory system includes a nonvolatile memory including a plurality of blocks as data erase units, a measuring unit which measures an erase time at which data of each block is erased, and a block controller which writes data supplied from at least an exterior into a first block which is set in a free state and whose erase time is oldest.