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:
Apr. 19, 2016

Filed:

Aug. 08, 2014
Applicant:

Globalfoundries Inc., Grand Cayman, KY;

Inventors:

Roy D. Cideciyan, Rueschlikon, CH;

Robert A. Hutchins, Tucson, AZ (US);

Thomas Mittelholzer, Zurich, CH;

Sedat Oelcer, Kilchberg, CH;

Assignee:

GLOBALFOUNDRIES INC., Grand Cayman, KY;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 20/18 (2006.01); H03M 13/13 (2006.01); H03M 5/14 (2006.01); H03M 13/11 (2006.01); H03M 13/29 (2006.01); H03M 13/39 (2006.01); H03M 13/00 (2006.01); G11B 5/008 (2006.01); G11B 20/10 (2006.01);
U.S. Cl.
CPC ...
G11B 20/1833 (2013.01); G11B 5/00813 (2013.01); G11B 20/10379 (2013.01); H03M 5/145 (2013.01); H03M 13/1111 (2013.01); H03M 13/13 (2013.01); H03M 13/2957 (2013.01); H03M 13/3905 (2013.01); H03M 13/3972 (2013.01); H03M 13/6325 (2013.01); G11B 2020/185 (2013.01);
Abstract

In one embodiment, a tape drive system includes a soft detector having logic configured to execute a first forward loop of a detection algorithm on a first block of signal samples during a first time interval, execute a first reverse loop of the detection algorithm on the first block of signal samples during a second time interval, execute a second reverse loop of the detection algorithm on the first block of signal samples during a fifth time interval, and execute a second forward loop of the detection algorithm on the first block of signal samples during a fourth time interval using second soft information. Other tape drive systems and computer program products for decoding data are presented in more embodiments.


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