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:
Apr. 17, 2018
Filed:
Feb. 19, 2016
Applicant:
Hitachi, Ltd., Tokyo, JP;
Inventors:
Akifumi Suzuki, Yohohama, JP;
Takashi Tsunehiro, Ebina, JP;
Assignee:
HITACHI, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 29/02 (2006.01); G11C 16/34 (2006.01); G11C 16/00 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0616 (2013.01); G06F 3/0629 (2013.01); G06F 3/0679 (2013.01); G11C 16/3431 (2013.01); G11C 16/3495 (2013.01); G11C 29/021 (2013.01); G11C 29/028 (2013.01); G11C 16/00 (2013.01);
Abstract
A semiconductor storage device has a nonvolatile semiconductor memory comprised from multiple storage areas, and a controller, which is coupled to the nonvolatile semiconductor memory. The controller (A) identifies a storage area state, which is the state of a storage area, (B) decides, based on the storage area state identified in the (A), a read parameter, which is a parameter for use when reading data from a storage area with respect to a storage area of this storage area state, and (C) uses the read parameter decided in the (B) with respect to a read-target storage area and reads data from this read-target storage area.