发明名称 |
Method of and apparatus for detecting phase |
摘要 |
A phase-locked loop included in a reproduce signal processing circuit which as a magnetic recording and reproducing device or the like. The phase-locked loop accurately detects a phase and can be operated at high speed. The phase-locked loop includes a data determining circuit for judging data at individual times from sampled data in a plurality of samples and an estimated data string generating circuit for examining the correlation between each data string and each known phase-locked data string and sequentially generating the known phase-locked data string closet to the data string. A sampling phase is detected by performing an arithmetic operation on the data string estimated by the estimated data string generating circuit and the sampled data.
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申请公布号 |
US6034998(A) |
申请公布日期 |
2000.03.07 |
申请号 |
US19960674864 |
申请日期 |
1996.07.03 |
申请人 |
HITACHI, LTD. |
发明人 |
TAKASHI, TERUMI;HIRANO, AKIHIKO |
分类号 |
G11B20/14;G11B20/18;H03L7/091;H04L7/02;H04L7/04;H04L7/10;(IPC1-7):H04L25/49 |
主分类号 |
G11B20/14 |
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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