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:
Apr. 05, 2011

Filed:

Feb. 11, 2010
Applicants:

Katsuki Ueda, Tachikawa, JP;

Hideo Sado, Ome, JP;

Takahisa Hagiwara, Tama, JP;

Inventors:

Katsuki Ueda, Tachikawa, JP;

Hideo Sado, Ome, JP;

Takahisa Hagiwara, Tama, JP;

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

According to one embodiment, a search module searches for a timing when a moving direction of a head changes in order to detect a first timing when the head collides against a stopper of a ramp during a head unload operation and a second timing when the head rebounds as a result of the collision. A calculation module calculates a rebound distance that the head has rebounded based on the first timing and the second timing.


Find Patent Forward Citations

Ueda, Katsuki. (2011). Disk drive configured to calculate head rebound distance (U.S. Patent No. 7920353). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7920353

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

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