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:
Apr. 22, 2008
Filed:
Jan. 03, 2002
Akira Karasudani, Kawasaki, JP;
Yoshiyuki Okada, Kawasaki, JP;
Akira Karasudani, Kawasaki, JP;
Yoshiyuki Okada, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The present invention relates to a file device and file access method that divides a file into units of clusters or blocks and records, and has as its object to provide a file device and file access method such that even when there is a failure and the data is not recorded correctly to the end the data that has been recorded can be accessed. When recording a file to an external storage device divided among a plurality of blocks, the blocks that are to record the file are pre-allocated in the external storage device, management information that indicates the allocated blocks is created and the management information is recorded in the external storage device, after which the data that makes up the file is recorded in the external storage device.