发明授权
- 专利标题: Systems and methods for adaptive write pre-compensation
- 专利标题(中): 自适应写预补偿的系统和方法
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申请号: US12199325申请日: 2008-08-27
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公开(公告)号: US07924518B2公开(公告)日: 2011-04-12
- 发明人: George Mathew , Yuan Xing Lee , Hongwei Song
- 申请人: George Mathew , Yuan Xing Lee , Hongwei Song
- 申请人地址: US CA Milpitas
- 专利权人: LSI Corporation
- 当前专利权人: LSI Corporation
- 当前专利权人地址: US CA Milpitas
- 代理机构: Hamilton, DeSanctis & Cha
- 主分类号: G11B5/02
- IPC分类号: G11B5/02
摘要:
Various embodiments of the present invention provide systems and methods for write pre-compensation. For example, various embodiments of the present invention provide methods for modifying magnetic information transfer. The methods include retrieving magnetically represented data from a storage medium, and converting the magnetically represented data to a series of data samples. A preceding pattern and a transition status is identified in the series of data samples, and an equalized channel response is computed based on an estimated NLTS value. An error value is computed that corresponds to a difference between the estimated NLTS value and an actual NLTS value, and a pre-compensation value is computed based at least in part on the error value.
公开/授权文献
- US20100053793A1 Systems and Methods for Adaptive Write Pre-Compensation 公开/授权日:2010-03-04
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