发明名称 |
Data reproduction apparatus and method |
摘要 |
A method and system for reproducing digital data read from a storage device. A second-order differentiation of a digital signal representing the digital data is calculated to control an automatic gain control (AGC) and phase lock loop (PLL) to rapidly correct amplitude and frequency offset of the digital signal being read from the storage device.
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申请公布号 |
US6687068(B2) |
申请公布日期 |
2004.02.03 |
申请号 |
US20020099796 |
申请日期 |
2002.03.15 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
KANAI TOSHIO |
分类号 |
G11B5/02;G11B20/10;(IPC1-7):G11B5/09 |
主分类号 |
G11B5/02 |
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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