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. 19, 2016
Filed:
Feb. 17, 2015
Applicant:
Seagate Technology Llc, Cupertino, CA (US);
Inventors:
Kaizhong Gao, North Oaks, MN (US);
Pu-Ling Lu, Rosemount, MN (US);
Edward Charles Gage, Lakeville, MN (US);
Wenzhong Zhu, Apple Valley, MN (US);
Assignee:
SEAGATE TECHNOLOGY LLC, Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 11/00 (2006.01); G11B 7/1263 (2012.01); G11B 5/48 (2006.01); G11B 5/60 (2006.01); G11B 5/31 (2006.01); G11B 5/00 (2006.01);
U.S. Cl.
CPC ...
G11B 7/1263 (2013.01); G11B 5/4866 (2013.01); G11B 5/6088 (2013.01); G11B 5/3133 (2013.01); G11B 2005/0021 (2013.01);
Abstract
Based on thermal time constant of a head-to-media spacing of a write head, a write parameter is determined that includes at least one of: a modified laser power boost used at a beginning of writing; and a time adjustment affecting the beginning of the writing. The write parameter is applied to writing operations affecting a heat-assisted magnetic recording medium, the write parameter ensuring accurate phase lock during reading of the heat-assisted magnetic recording medium.