发明名称 |
Apparatus and method for noise-predictive maximum likelihood detection |
摘要 |
In a maximum likelihood sequence detector for symbol sequences which were equalized in a PR4 equalizer, noise prediction means (35) are provided including infinite impulse response (IIR) filtering, which have noise-whitening capabilities and are imbedded into the maximum likelihood detection process. The resulting INPML detector (10) can be implemented in digital or analog circuit technology. In addition, a DC-notch filter (44a) and a stochastic gradient procedure can be provided for DC offset compensation and for MR head or signal asymmetry compensation.
|
申请公布号 |
US6625235(B1) |
申请公布日期 |
2003.09.23 |
申请号 |
US19990403628 |
申请日期 |
1999.11.02 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
COKER JONATHAN D.;GALBRAITH RICHARD L.;ELEFTHERIOU EVANGELOS S.;HIRT WALTER |
分类号 |
H03M13/41;G11B20/10;H04L25/03;H04L25/497;(IPC1-7):H03D1/00 |
主分类号 |
H03M13/41 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|