发明名称 |
Detector input dark current offset calibration in an optical disk drive digital servo |
摘要 |
A calibration of input signal offset in an optical disk drive is presented. The input signal offsets the input signals received from an optical pick-up unit before digitization. In some embodiments, the input signal offset is set such that the digitized input signals are zero when laser power is off. Further, a thermal drift correction is presented.
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申请公布号 |
US6950380(B2) |
申请公布日期 |
2005.09.27 |
申请号 |
US20010950512 |
申请日期 |
2001.09.10 |
申请人 |
DPHI ACQUISITIONS, INC. |
发明人 |
WATT CHARLES R.;KADLEC RON J.;TURNER CHRISTOPHER J. |
分类号 |
G11B7/09;G11B7/095;G11B20/00;(IPC1-7):G11B20/00 |
主分类号 |
G11B7/09 |
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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