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.:

US 7342739 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 11, 2008

Filed:

Jul. 22, 2005
Applicants:

Cheol-hoon Park, Suwon-si, KR;

Nam-guk Kim, Anyang-si, KR;

Sang-hoon Chu, Yongin-si, KR;

Inventors:

Cheol-hoon Park, Suwon-si, KR;

Nam-guk Kim, Anyang-si, KR;

Sang-hoon Chu, Yongin-si, KR;

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

A method, medium, and apparatus controlling a hard disk drive, and particularly, embodiments include methods, media, and apparatuses compensating for torque variations with respect to temperature variations in a seek servo operation, compensating for differences between modeling torque constants, used for servo designing, and actual torque constants. The method includes controlling gain of a seek control loop to vary depending on a torque constant temperature compensation value corresponding to a measured temperature of the hard disk drive, the seek control loop generating a seek driving current to be applied to a voice coil in the seek mode.


Find Patent Forward Citations

Park, Cheol-hoon. (2008). Method, medium, and apparatus compensating for torque variations based on temperature (U.S. Patent No. 7342739). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7342739

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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