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.
Patent No.:
Date of Patent:
Feb. 11, 2025
Filed:
Sep. 01, 2023
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Digital Solutions Corporation, Kawasaki, JP;
Masakazu Hattori, Yokohama Kanagawa, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
TOSHIBA DIGITAL SOLUTIONS CORPORATION, Kawasaki, JP;
Abstract
A page-table size is reduced. A management device manages a data group by dividing the data group into pages. The management device includes a page-processing unit and a data-log-management unit. When update processing is first executed on an update target page in the current-generation, the page-processing unit secures a free space and updates the update target page on the secured free space. The page-processing unit adds, to a data log file of the current-generation, a CPUNDO log indicating a correspondence between a logical address and a physical address in the update target page. The data-log-management unit writes data at starting of the current-generation to a data storage device for the immediately previous operation page. The data-log-management unit adds, to the data log file of the current-generation, a CPREDO log indicating a correspondence between the logical address and the physical address in the immediately previous operation page.