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:
Oct. 08, 2013
Filed:
May. 27, 2011
Lin Zhou, Eagan, MN (US);
Huazhou Lou, Eden Prairie, MN (US);
Dongming Liu, Eden Prairie, MN (US);
Vincent Bernard Engelkes, Maple Grove, MN (US);
Lin Zhou, Eagan, MN (US);
Huazhou Lou, Eden Prairie, MN (US);
Dongming Liu, Eden Prairie, MN (US);
Vincent Bernard Engelkes, Maple Grove, MN (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A system that is capable of monitoring tribological data, such as friction, in a data storage device. In accordance with various embodiments, a magnetoresistive head is separated from a rotating data storage media by an air bearing and attached to a slider that is adjusted through deformation controlled by a heating element. A measurement circuit concurrently monitors friction from the head and power applied to the heating element to determine an MR head clearance. The measurement circuit includes at least a phase filter that eliminates off-phase friction from contributing to the determination of the MR head clearance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile