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:
May. 13, 2014
Filed:
May. 05, 2011
Koichi Maeda, Kawasaki, JP;
Hiroyuki Wada, Kawasaki, JP;
Koichi Maeda, Kawasaki, JP;
Hiroyuki Wada, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A memory control apparatus, in a case of receiving from a processor, under a condition where the number of cache memories retaining a copy of data stored in a main storage device is one, a notification to the effect that data retained in the cache memory is purged, updates directory information on a directory cache without accessing the main storage device when the data is not modified by the processor, and the directory information on the directory cache and directory information on the main storage device is determined to be different and the directory information on the main storage device is determined to be in a state indicating that the copy of the data is not retained by any processor in the state of coherence.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile