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:
Dec. 01, 2015
Filed:
Jan. 13, 2015
Seagate Technology Llc, Cupertino, CA (US);
Drew Michael Mader, Bloomington, MN (US);
Alfredo Sam Chu, Prior Lake, MN (US);
Jason Riddering, Prior Lake, MN (US);
Seagate Technology LLC, Cupertino, CA (US);
Abstract
A power level is applied to a laser that heats a heat-assisted recording medium is increased during recording for a plurality of iterations. Each iteration involves writing test data to a plurality of sequential tracks of the recording medium using the power level and determining bit error rates of the test data. Based on the bit error rates of the iterations, a power boost profile is determined. The power boost profile starts at a baseline level at a first track of a plurality of sequentially-written tracks, incrementally increases to a steady-state level over a first portion of the tracks, and remains at the steady-state level over subsequent ones of the tracks. The power boost profile is applied to the laser when recording to the recording medium.