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. 01, 2021

Filed:

Feb. 05, 2018
Applicant:

Sony Semiconductor Solutions Corporation, Kanagawa, JP;

Inventors:

Teruya Kaneda, Kanagawa, JP;

Kenichi Nakanishi, Tokyo, JP;

Hideaki Okubo, Saitama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/0868 (2016.01); G06F 12/0804 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0868 (2013.01); G06F 12/0804 (2013.01); G06F 2212/1021 (2013.01); G06F 2212/608 (2013.01);
Abstract

An object is to suppress a process of evicting cached data so as to improve a throughput of an entire system. A storage controller includes an access request section and an operation management section. The access request section requests access to a first storage and to a second storage that is higher in response speed than the first storage, the second storage storing part of data stored in the first storage. The operation management section manages, based on a usage state of the second storage, whether or not to transfer from the first storage to the second storage data targeted for access but not stored in the second storage.


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