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:
Mar. 12, 2019

Filed:

Oct. 16, 2017
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Steven R. Bentley, Tucson, AZ (US);

Roy D. Cideciyan, Rueschlikon, CH;

Simeon Furrer, Altdorf, CH;

Keisuke Tanaka, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 20/18 (2006.01); G11B 20/10 (2006.01);
U.S. Cl.
CPC ...
G11B 20/1816 (2013.01); G11B 20/1833 (2013.01); G11B 2020/10898 (2013.01); G11B 2020/1853 (2013.01);
Abstract

In one embodiment, an apparatus includes a controller and logic integrated with and/or executable by the controller. The logic is configured to perform track-dependent erasure decoding on encoded data based on detection of one or more time-varying signal quality issues associated with at least one of a plurality of tracks read simultaneously from a data storage medium. In another embodiment, a method includes determining, by a magnetic tape drive, track signal quality reliability for a plurality of tracks read simultaneously from a magnetic tape medium. In addition, the method includes performing, by the magnetic tape drive, track-dependent erasure decoding on encoded data based on detection of one or more time-varying signal quality issues associated with at least one of the plurality of simultaneously-read tracks.


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