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.

Date of Patent:
Nov. 26, 2019

Filed:

Sep. 06, 2018
Applicant:

Seagate Technology Llc, Cupertino, CA (US);

Inventors:

Mehmet Fatih Erden, St. Louis Park, MN (US);

Walter R. Eppler, Cranberry Township, PA (US);

Assignee:

Seagate Technology LLC, Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/596 (2006.01); G11B 5/48 (2006.01); G11B 5/54 (2006.01); G11B 5/56 (2006.01); G11B 5/58 (2006.01);
U.S. Cl.
CPC ...
G11B 5/59627 (2013.01); G11B 5/4826 (2013.01); G11B 5/488 (2013.01); G11B 5/4813 (2013.01); G11B 5/4886 (2013.01); G11B 5/54 (2013.01); G11B 5/56 (2013.01); G11B 5/58 (2013.01);
Abstract

First and second tracks are read simultaneously via a first reader mounted in a head-gimbal assembly. The first reader provides a first signal based on detecting a total perpendicular field of the first and second tracks. The first and second tracks are read simultaneously via a second reader mounted in the head-gimbal assembly. The second reader provides a second signal based on detecting a total longitudinal field of the first and second tracks. At least one of a position error and a timing error of at least one of the first and second readers are determined based on user data read via the respective first and second signals.


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