Invention Grant
- Patent Title: Energy-based inter-track interference cancellation
- Patent Title (中): 基于能量的轨道间干扰消除
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Application No.: US13591888Application Date: 2012-08-22
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Publication No.: US08693119B2Publication Date: 2014-04-08
- Inventor: George Mathew , Erich Franz Haratsch , Jongseung Park , Timothy B. Lund
- Applicant: George Mathew , Erich Franz Haratsch , Jongseung Park , Timothy B. Lund
- Applicant Address: US CA Milpitas
- Assignee: LSI Corporation
- Current Assignee: LSI Corporation
- Current Assignee Address: US CA Milpitas
- Main IPC: G11B27/36
- IPC: G11B27/36 ; G11B5/00

Abstract:
Described embodiments cancel inter-track interference (ITI) from one or more sectors read from a desired track of a storage medium. A read channel reads one or more sectors in the desired track and generates one or more groups of sample values corresponding to each of the sectors. An ITI canceller estimates an ITI response and an ITI signal for each sample value corresponding to (i) a next adjacent track and (ii) a previous adjacent track. If the estimated ITI response of the previous adjacent track reaches a predetermined threshold, the ITI canceller subtracts the estimated ITI signal corresponding to the previous adjacent track from each associated sample value of the desired track. If the estimated ITI response of the next adjacent track reaches a predetermined threshold, the ITI canceller subtracts the estimated ITI signal corresponding to the next adjacent track from each associated sample value of the desired track.
Public/Granted literature
- US20130070362A1 ENERGY-BASED INTER-TRACK INTERFERENCE CANCELLATION Public/Granted day:2013-03-21
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