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:
Nov. 29, 2011
Filed:
Dec. 14, 2009
Lakshmi Ramamoorthy, San Jose, CA (US);
David Jen, San Jose, CA (US);
Douglas Zuercher, Morgan Hill, CA (US);
Masayoshi Shimokoshi, Kanagawa, JP;
Kris Schouterden, San Jose, CA (US);
Lakshmi Ramamoorthy, San Jose, CA (US);
David Jen, San Jose, CA (US);
Douglas Zuercher, Morgan Hill, CA (US);
Masayoshi Shimokoshi, Kanagawa, JP;
Kris Schouterden, San Jose, CA (US);
Abstract
Approaches for improving the write quality of a hard-disk drive (HDD) head experiencing temporary fly-height problem. When the hard-disk drive is idle and heads are parked on the ramp, fluid, such as a lubricant or the condensation of vapor, may collect between the surface of a platter and the head or a slider, thereby causing the head to temporarily fly higher than normal. An HDD may include electronic component(s) configured to (a) determine whether it is likely that fluid is interposed between the surface of a magnetic-recording disk and the slider or the head, and (b) temporarily adjust one or more of (i) a thermal fly height control setting of the head and (ii) a write parameter of the head to compensate for the head flying higher than normal as a result of the fluid being interposed between the surface of the disk and the slider or the head.