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 7570449 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 04, 2009

Filed:

Dec. 05, 2006
Applicants:

Dong Wook Lee, Suwon-si, KR;

Byoung Kul Ji, Suwon-si, KR;

Inventors:

Dong wook Lee, Suwon-si, KR;

Byoung kul Ji, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 21/12 (2006.01); G11B 5/54 (2006.01);
U.S. Cl.
CPC ...
Abstract

A retract control method of an HDD to prevent a head from landing on a disk due to a retract failure and an HDD using the same. The retract control method includes performing a retract operation of retracting a head on the ramp, determining whether the head is normally retracted on the ramp, when it is determined that the head is not normally retracted on the ramp, moving the head to a predetermined zone of a disk, and when the head arrives at the predetermined zone of the disk, parking the head in the predetermined zone of the disk by stopping a spindle motor. Accordingly, even when a retract operation fails, a reliable retract operation can be performed by retrying the retract operation while adjusting one or more retract parameters.


Find Patent Forward Citations

Lee, Dong. (2009). Retract control method of hdd and hdd using the same (U.S. Patent No. 7570449). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7570449

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