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:
Jan. 03, 2023

Filed:

Jan. 25, 2021
Applicant:

Kioxia Corporation, Tokyo, JP;

Inventor:

Daisuke Hashimoto, Kanagawa, JP;

Assignee:

KIOXIA CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/07 (2006.01); G06F 3/06 (2006.01); G06F 12/0804 (2016.01); G06F 12/02 (2006.01); G06F 11/14 (2006.01); G11C 11/56 (2006.01); G11C 16/04 (2006.01); G06F 12/0868 (2016.01);
U.S. Cl.
CPC ...
G06F 11/076 (2013.01); G06F 3/0605 (2013.01); G06F 3/0611 (2013.01); G06F 3/0616 (2013.01); G06F 3/0619 (2013.01); G06F 3/0632 (2013.01); G06F 3/0634 (2013.01); G06F 3/0653 (2013.01); G06F 3/0679 (2013.01); G06F 11/073 (2013.01); G06F 11/1458 (2013.01); G06F 12/0246 (2013.01); G06F 12/0804 (2013.01); G06F 12/0868 (2013.01); G06F 2201/805 (2013.01); G06F 2212/214 (2013.01); G06F 2212/7204 (2013.01); G11C 11/5621 (2013.01); G11C 16/0483 (2013.01);
Abstract

According to the embodiments, an external storage device switches to an interface controller for supporting only a read operation of nonvolatile memory when a shift condition for shifting to a read only mode is met. A host device switches to an interface driver for supporting only the read operation of the nonvolatile memory when determining to recognize as read only memory based on information acquired from the external storage device.


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