发明名称 |
Method and apparatus for maximum likelihood detection of data employing interpolation with compensation of signal asymmetry |
摘要 |
A method and apparatus are disclosed for detecting data, such as a sample sequence read from a recording channel. Interpolation techniques are employed to generate one or more interpolated sample sequences from the data. Each interpolated sample sequence has a different corresponding phase relative to the data. A distance measure is generated between a portion of each interpolated sample sequence and an ideal sample sequence. The ideal sample sequence corresponds to peaks in the data. According to one aspect of the invention, a signal asymmetry measure is computed for the portion of each sample sequence and is used to adjust an ideal sample sequence.
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申请公布号 |
US7180693(B2) |
申请公布日期 |
2007.02.20 |
申请号 |
US20040824326 |
申请日期 |
2004.04.14 |
申请人 |
AGERE SYSTEMS INC. |
发明人 |
ANNAMPEDU VISWANATH;AZIZ PERVEZ M. |
分类号 |
G11B5/09;G11B5/596;G11B20/10;G11B21/02 |
主分类号 |
G11B5/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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