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:
Sep. 09, 2008
Filed:
Apr. 10, 2006
Applicants:
Yiping MA, Layton, UT (US);
Mark Thayne, West Point, UT (US);
Inventors:
Yiping Ma, Layton, UT (US);
Mark Thayne, West Point, UT (US);
Assignee:
Iomega Corporation, San Diego, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 21/21 (2006.01);
U.S. Cl.
CPC ...
Abstract
A disk drive having a heater element on the read/write head includes control circuitry to prevent head/disk contact by limiting power to the heater element. As the power to the heater element increases, thermal expansion reduces the fly height until head/disk contact occurs. During drive calibration, a maximum power level allowed to the heater element is determined by detecting heater power at a level where a parameter value such as motor current exceeds a threshold level.