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.

Date of Patent:
Oct. 23, 2007

Filed:

Feb. 28, 2006
Applicant:

Benjamin Ryu, Cupertino, CA (US);

Inventor:

Benjamin Ryu, Cupertino, CA (US);

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 21/02 (2006.01); G11B 17/00 (2006.01); G11B 5/596 (2006.01);
U.S. Cl.
CPC ...
Abstract

A disk drive that contains a fly on demand head (FOD) and a process for determining contact between the FOD head and a disk. The head includes a heating coil that can receive various levels of power. The process includes using a routine to obtain head position estimate error data. A standard deviation of the estimate error data is then determined. Standard deviation values for estimate error data are generated for different power values and used to determine a contact point between the head and the disk.


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