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:
Jun. 30, 2020

Filed:

Dec. 06, 2018
Applicant:

Toshiba Memory Corporation, Minato-ku, Tokyo, JP;

Inventors:

Takayuki Mori, Hachioji Tokyo, JP;

Satoshi Kaburaki, Meguro Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 12/1009 (2016.01); G06F 11/10 (2006.01); G11C 29/52 (2006.01);
U.S. Cl.
CPC ...
G06F 12/1009 (2013.01); G06F 11/1068 (2013.01); G11C 29/52 (2013.01); G06F 2212/1032 (2013.01); G06F 2212/1044 (2013.01); G06F 2212/657 (2013.01);
Abstract

A memory system includes a memory controller and a memory that is nonvolatile. The memory controller divides first information, which correlates a logical address with a physical address of the memory, into multiple pieces of second information, attaches metadata to each of the multiple pieces of second information and stores each piece of second information with the attached metadata, into the memory, when using third information, which is one of the multiple pieces of second information, reads, as multiple pieces of fourth information, pieces of second information including the third information, from among the multiple pieces of second information stored in the memory, selects fifth information, which is different from the third information, from among the read multiple pieces of fourth information based on the metadata attached to each of the multiple pieces of fourth information, and caches the selected fifth information into another memory.


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