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:
Jan. 30, 2001
Filed:
Apr. 27, 1998
Yasunori Kawakami, Hyogo-ken, JP;
Hiroshi Taniyama, Osaka-fu, JP;
Matsushita Electric Industrial Co., Ltd., Osaka-Fu, JP;
Abstract
The present invention relates to a file system using a disc memory storage and a method of managing the file system. Just like the ordinary server, a first block table Tb,with the offset number of the file to be written in matched with the block number Dij of the data block is provided, and the data stored in the memory is read out on the basis of the contents of the first block table Tb,On that file system, a second block registering means is provided which couples the block number allotted to the file to write and the offset number and, in case of consecutive block numbers, prepares a second block table Tb,in which the first block number of the consecutive block numbers is paired with the offset number. A second take-out means is also provided. When consecutive data are to be read out, the second block take-out means arithmetically processes, on the basis of the contents of the second block table Tb,the block numbers Dij to be read out and hands over the results to the data read-out means. That substantially reduces the access and processing time for read-out at the block table and makes the reading out of data highly efficient.