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:
Jan. 04, 2022
Filed:
May. 30, 2017
Hitachi, Ltd., Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
It is assumed that at least one of the plurality of nonvolatile semiconductor memory devices is a nonvolatile semiconductor memory device (hereinafter, referred to as a first memory device) in a low power consumption state in which error check processing and refresh processing cannot be performed. A storage apparatus releases a low power consumption state of a first memory device at a timing according to a lapsed time after the first memory device is in the low power consumption state and an estimated ambient temperature of the first memory device at the lapsed time. When the low power consumption state is released, the first memory device executes the error check processing and the refresh processing.