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, 2007
Filed:
May. 21, 2002
Yoshiyuki Ohta, Kawasaki, JP;
Katsuhiko Nishikawa, Kawasaki, JP;
Yoshiyuki Ohta, Kawasaki, JP;
Katsuhiko Nishikawa, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A storage unit which purges unnecessary data immediately and transfers data with high probability of future hits from a disk medium to a segment buffer in advance. A section calculates feature values of data to be stored in a new generated segment and relationships between preceding and succeeding commands. Next, a section retains the feature values for a predetermined period after segment data is purged from a segment buffer and stores the feature values of the purged segment as feature values of a segment with a high hit probability after the purge, when an address stored by the purged segment is read again. Then, a section does not purge a segment when the segment has feature values similar to those of the segment having a high hit probability, while purging another segment or other plural segments with a different feature value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile