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. 12, 2016
Filed:
Mar. 31, 2015
Seagate Technology Llc, Cupertino, CA (US);
Alfredo S. Chu, Prior Lake, MN (US);
Jason W. Riddering, Prior Lake, MN (US);
Drew M. Mader, Bloomington, MN (US);
Huazhou Lou, Eden Prairie, MN (US);
Pu-Ling Lu, Rosemount, MN (US);
Seagate Technology LLC, Cupertino, CA (US);
Abstract
A method includes setting a heat assisted magnetic recording (HAMR) device located in a data storage system having a laser to an operating temperature. A threshold laser current is determined. An optimal laser current is determined. The threshold laser current and the optimal laser current are stored in memory. The steps of determining a threshold laser current, determining an optimal laser current and storing the threshold laser current and the optimal laser current into the calibration table are repeated until acceptable device performance is achieved at more than one operating temperature.