发明名称 |
Circuit and method for determining the position of a read head for a magnetic disk drive device |
摘要 |
A servo-demodulator for a pair of alternating signals generated by a magnetic disc read head and indicative of the position of the read head in relation to the center of a recorded track. The servo-demodulator comprises a peak detector for successively and individually sampling the amplitude of each of a plurality of peaks of the pair of alternating signals, and a capacitor periodically connected to the output of the peak detector by a control logic for deriving a weighted average of the various successively sampled amplitudes. In this manner, the control logic obtains an averaged measure of amplitude with high immunity to noise.
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申请公布号 |
US6204990(B1) |
申请公布日期 |
2001.03.20 |
申请号 |
US19990412080 |
申请日期 |
1999.10.04 |
申请人 |
SGS-THOMPSON MICROELECTRONICS S.R.L. |
发明人 |
BRUCCOLERI MELCHIORRE;DEMICHELI MARCO;DEMICHELI DAVIDE;PATTI GIUSEPPE |
分类号 |
G11B5/55;G11B5/596;G11B21/10;(IPC1-7):G11B5/596 |
主分类号 |
G11B5/55 |
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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