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:
Jan. 17, 2017
Filed:
Feb. 11, 2015
Seagate Technology Llc, Cupertino, CA (US);
Huazhou Lou, Eden Prairie, MN (US);
Jason Riddering, Prior Lake, MN (US);
Shawn S. Silewski, Eden Prairie, MN (US);
Dongming Liu, Eden Prairie, MN (US);
Lin Zhou, Eagan, MN (US);
SEAGATE TECHNOLOGY LLC, Cupertino, CA (US);
Abstract
An apparatus comprises a heat-assisted magnetic recording (HAMR) head, a sensor, and a controller. The HAMR head is configured to interact with a magnetic storage medium. The sensor is configured to produce a signal indicating the occurrence of head-medium contact. The controller is configured to receive the signal and concurrently determine from the signal if the occurrence of head-medium contact is caused by a first contact detection parameter, a second contact detection parameter, or both the first and second contact detection parameters.