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. 02, 2016
Filed:
Oct. 03, 2014
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Nhan X. Bui, Tucson, AZ (US);
Kevin B. Judd, Tucson, AZ (US);
Roger J. Justo, Tucson, AZ (US);
Hirokazu Nakayama, Fujisawa, JP;
Tomoko Taketomi, Yamato, JP;
Assignee:
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 15/52 (2006.01); G11B 5/584 (2006.01); G11B 15/46 (2006.01); G11B 15/20 (2006.01);
U.S. Cl.
CPC ...
G11B 15/52 (2013.01); G11B 5/584 (2013.01); G11B 15/46 (2013.01); G11B 15/20 (2013.01);
Abstract
A maximum velocity is dynamically determined during a tape drive operation to obtain a statistical standard deviation of a position error signal (PES) that yields an amount of stopwrite (SW) operations that avoids backhitching. The tape velocity is adjusted to the maximum velocity.