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. 19, 2009
Filed:
Sep. 27, 2006
Applicants:
Muthian Sivathanu, Madison, WI (US);
Andrea C. Arpaci-dusseau, Madison, WI (US);
Remzi H. Arpaci-dusseau, Madison, WI (US);
Inventors:
Muthian Sivathanu, Madison, WI (US);
Andrea C. Arpaci-Dusseau, Madison, WI (US);
Remzi H. Arpaci-Dusseau, Madison, WI (US);
Assignee:
Wisconsin Alumni Research Foundation, Madison, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A disk drive or similar storage medium uses a semantic understanding of its associated file system to monitor file metadata and derive block liveness normally only known by the file system. Knowledge of block liveness can be used to improve the disk performance and to create a disk that provides for secure deletion without explicit instructions from the file system.