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. 18, 2016
Filed:
Apr. 16, 2015
Applicant:
Seagate Technology Llc, Cupertino, CA (US);
Inventors:
Assignee:
Seagate Technology LLC, Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/1263 (2012.01); G11B 7/126 (2012.01); G11B 7/1267 (2012.01); G11B 5/00 (2006.01);
U.S. Cl.
CPC ...
G11B 7/126 (2013.01); G11B 7/1263 (2013.01); G11B 7/1267 (2013.01); G11B 2005/0021 (2013.01);
Abstract
A current temperature of a data storage device having a heat assisted recording (HAMR) device is measured while in idle. A threshold laser diode power output of the HAMR device is calculated at the current temperature when there is a change between a previous temperature and the current temperature. A new laser diode current that produced the calculated threshold laser diode power output is applied to the HAMR device when there is a change between the currently applied laser diode current and the new laser diode current.