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:
Nov. 04, 2014
Filed:
Aug. 22, 2012
Erich Franz Haratsch, Bethlehem, PA (US);
George Mathew, San Jose, CA (US);
Ming Jin, Fremont, CA (US);
Jongseung Park, Allentown, PA (US);
Timothy W. Swatosh, Rochester, MN (US);
Timothy B. Lund, Rochester, MN (US);
Carl E. Forhan, Rochester, MN (US);
Erich Franz Haratsch, Bethlehem, PA (US);
George Mathew, San Jose, CA (US);
Ming Jin, Fremont, CA (US);
Jongseung Park, Allentown, PA (US);
Timothy W. Swatosh, Rochester, MN (US);
Timothy B. Lund, Rochester, MN (US);
Carl E. Forhan, Rochester, MN (US);
LSI Corporation, San Jose, CA (US);
Abstract
Described embodiments provide a method of cancelling inter-track interference (ITI) from one or more sectors read from a desired track of a storage medium. A road channel reads sectors in a desired track of the storage medium. A decoder of the read channel decodes the read sectors, and if the read sectors are incorrectly recovered from the storage medium, selected sectors of a first adjacent track and a second adjacent track are read. An ITI canceller of the read channel estimates ITI in the read sectors of the desired track corresponding to the selected sectors of each adjacent track and subtracts the estimated ITI of each adjacent track from the data for the sectors of the desired track, providing updated sector data. The ITI cancelled data is replayed to the decoder, which decodes the ITI cancelled data and provides the decoded ITI cancelled data as output of the read channel.