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:
Mar. 22, 2022

Filed:

Mar. 15, 2021
Applicant:

Kioxia Corporation, Tokyo, JP;

Inventor:

Shinji Yonezawa, Machida, JP;

Assignee:

Kioxia Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/4074 (2006.01); G11C 11/4093 (2006.01); G11C 11/4072 (2006.01); G11C 5/14 (2006.01);
U.S. Cl.
CPC ...
G11C 11/4074 (2013.01); G11C 5/141 (2013.01); G11C 11/4072 (2013.01); G11C 11/4093 (2013.01);
Abstract

According to on embodiment, a memory system includes a non-volatile memory, a memory controller including a data buffer configured to store first data, and a backup power supply configured to supply first power to the non-volatile memory and the memory controller, when second power from an external main power supply is off. The memory controller is configured to write second data including information identifying the first data in the non-volatile memory without writing the first data in the non-volatile memory, when the first power is supplied from the backup power supply, and transmit the information stored in the non-volatile memory to an external host device, after a recovery of the second power from the main power supply.


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