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:
Aug. 22, 2006
Filed:
Dec. 21, 2004
Applicant:
Yiping MA, Layton, UT (US);
Inventor:
Yiping Ma, Layton, UT (US);
Assignee:
Iomega Corporation, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 21/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for detecting a change in fly-height comprises measuring motor currents at various radii at a regular interval to determine the head drag. If any of the head drags at the various radii are greater than a threshold value, it is determined that a decrease in fly-height has occurred. If the disk drive has a head cleaner, a head cleaning is initiated to correct the fly-height change. If no head cleaning is necessary, a general error signal may be generated to indicate potential drive failure.