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:
Feb. 24, 2015
Filed:
Dec. 11, 2008
Yiran Chen, Eden Prairie, MN (US);
Hai LI, Eden Prairie, MN (US);
Harry Hongyue Liu, Maple Grove, MN (US);
Alan Xuguang Wang, Eden Prairie, MN (US);
Yiran Chen, Eden Prairie, MN (US);
Hai Li, Eden Prairie, MN (US);
Harry Hongyue Liu, Maple Grove, MN (US);
Alan Xuguang Wang, Eden Prairie, MN (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
Various embodiments of the present invention are generally directed to an apparatus and method for non-volatile caching of data in a memory hierarchy of a data storage device. In accordance with some embodiments, a pipeline memory structure is provided to store data for use by a controller. The pipeline has a plurality of hierarchical cache levels each with an associated non-volatile filter cache and a non-volatile victim cache. Data retrieved from each cache level are respectively promoted to the associated non-volatile filter cache. Data replaced in each cache level are respectively demoted to the associated non-volatile victim cache.