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. 03, 2017
Filed:
Nov. 19, 2015
Applicant:
Seagate Technology Llc, Cupertino, CA (US);
Inventors:
Minjie Ma, Bloomington, MN (US);
Edmun Seng, Singapore, SG;
Tim Rausch, Farmington, MN (US);
Edward Charles Gage, Lakeville, MN (US);
Assignee:
SEAGATE TECHNOLOGY LLC, Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 27/36 (2006.01); G11B 5/09 (2006.01); G11B 5/455 (2006.01); G11B 5/00 (2006.01);
U.S. Cl.
CPC ...
G11B 5/455 (2013.01); G11B 2005/0021 (2013.01);
Abstract
A cross-track profile of a known good test track on a recording medium is read during operation of a data storage device. Two or more center locations of the test track are determined at two or more different amplitude levels via a read transducer. A health condition of the read transducer is determined by comparing the two or more center locations of the test track with one another.