发明申请
- 专利标题: STORAGE MEDIA INTER-TRACK INTERFERENCE CANCELLATION
- 专利标题(中): 存储媒体互联干扰消除
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申请号: US13591937申请日: 2012-08-22
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公开(公告)号: US20130021689A1公开(公告)日: 2013-01-24
- 发明人: Erich Franz Haratsch , George Mathew , Ming Jin , Jongseung Park , Timothy W. Swatosh , Timothy B. Lund , Carl E. Forhan
- 申请人: Erich Franz Haratsch , George Mathew , Ming Jin , Jongseung Park , Timothy W. Swatosh , Timothy B. Lund , Carl E. Forhan
- 主分类号: G11B5/09
- IPC分类号: G11B5/09
摘要:
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 read 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 ITT cancelled data and provides the decoded ITI cancelled data as output of the read channel.
公开/授权文献
- US08879182B2 Storage media inter-track interference cancellation 公开/授权日:2014-11-04
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