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:
Jul. 20, 2004
Filed:
Sep. 19, 2001
Toyotoshi Uemura, Ehime, JP;
Tatsuya Sakanashi, Ehime, JP;
Fumitoshi Saito, Ehime, JP;
Hiromi Matsuki, Ehime, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
When a computer issues a reading request for data stored in a storage medium, it is judged whether or not the respective data for which the reading request is issued are in cache hit with data that are stored in a read buffer. Only data which are not in cache hit among the data for which the reading request is issued are read out from the storage medium, so as to be buffered in the read buffer. The data for which the reading request is issued are transferred from the read buffer to the computer, and data at addresses which are subsequent to the data for which the reading request is issued are pre-read from the storage medium and buffered in the read buffer so as to be continuous with the buffered read data. Thereby, it is possible to utilize cache data efficiently and effectively.