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:
Sep. 17, 2024
Filed:
May. 25, 2020
Sony Interactive Entertainment Inc., Tokyo, JP;
Naoto Okino, Tokyo, JP;
Sony Interactive Entertainment Inc., Tokyo, JP;
Abstract
A block processing section divides a file generated by an application into a plurality of data blocks and stored the data blocks in an auxiliary storage device. A metadata processing section stores, in the auxiliary storage device, first metadata including a hash value and information for identifying a storage location of each of the plurality of data blocks. When the file is updated, the block processing section stores an updated data block in another storage location. The metadata processing section stores, in the auxiliary storage device, second metadata including a hash value and information for identifying a storage location of each of a plurality of data blocks including the updated data block. A metadata switching section sets the second metadata to be used for file access.