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:
Aug. 05, 2014
Filed:
Jun. 19, 2012
Katherine T. Blinick, Tucson, AZ (US);
Robert A. Hutchins, Tucson, AZ (US);
Thomas Mittelholzer, Zurich, CH;
Sedat Oelcer, Kilchberg, CH;
Katherine T. Blinick, Tucson, AZ (US);
Robert A. Hutchins, Tucson, AZ (US);
Thomas Mittelholzer, Zurich, CH;
Sedat Oelcer, Kilchberg, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
In accordance with one embodiment, a data storage system includes a tape channel for reading precoded data from a magnetic tape medium to produce a signal, a soft detector adapted for calculating first soft information about each bit of the signal and sending the first soft information to a soft decoder, and the soft decoder positioned subsequent to the soft detector, the soft decoder being adapted for calculating second soft information about each bit of the signal and sending the second soft information to the soft detector, wherein the precoded data includes a characteristic of being passed through at least one precoder prior to being written to the magnetic tape medium, and wherein the soft detector provides automatic compensation for the precoded data. Other systems, methods, and computer program products for reading data using an adaptive soft-output detector are described according to more embodiments.