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:
May. 19, 2020

Filed:

Jun. 05, 2018
Applicant:

Buffalo Inc., Nagoya-shi, JP;

Inventors:

Kazuki Makuni, Nagoya, JP;

Takayuki Okinaga, Nagoya, JP;

Shuichiro Azuma, Nagoya, JP;

Yu Nakase, Nagoya, JP;

Assignee:

BUFFALO INC., Nagoya-Shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/02 (2006.01); G06F 12/1009 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0246 (2013.01); G06F 12/1009 (2013.01); G06F 2212/1024 (2013.01); G06F 2212/2022 (2013.01); G06F 2212/7201 (2013.01); G06F 2212/7204 (2013.01); G06F 2212/7205 (2013.01); G06F 2212/7207 (2013.01);
Abstract

A storage device including a flash memory, and circuitry that manages a logical address and a physical address so as to be converted using a conversion table, writes a logical address and old and new information indicating a timing when the data is written, into the physical address together with the data, writes at least latest old and new information of the old and new information written in the block into a predetermined page of the block, and reestablishes the conversion table by arranging the logical address recorded in each page included in the block and the physical address corresponding to the logical address in association with each other, in chronological order of the latest old and new information read out from each block of the flash memory, at a predetermined reestablishment timing for performing reestablishment of the conversion table.


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