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:
Feb. 23, 2021
Filed:
Oct. 29, 2019
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Daniel James Winarski, Tucson, AZ (US);
Nhan Xuan Bui, Tucson, AZ (US);
Lee Curtis Randall, Tucson, AZ (US);
Richard Bradshaw, Tucson, AZ (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/09 (2006.01); G11B 5/55 (2006.01); G11B 5/53 (2006.01); G11B 5/008 (2006.01); G06F 17/11 (2006.01);
U.S. Cl.
CPC ...
G11B 5/5508 (2013.01); G11B 5/00817 (2013.01); G11B 5/534 (2013.01); G06F 17/11 (2013.01);
Abstract
A tape drive may calculate the slopes for three successive timing-based-servo marks in a timing-based-servo group. The timing-based-servo marks may be arranged in a one or more M-patterns. The three successive timing-based-servo marks may be across the one or more M-patterns. The tape drive may perform a parabolic fit of a gradient of the slopes. The tape drive may determine whether the gradient is demonstrative of tape-creep.