发明名称 |
Servo control apparatus for optical disc player |
摘要 |
A servo control apparatus of an optical pickup includes an extractor for extracting an error signal from a read signal; an equalizer including a phase compensator for equalizing the error signal to generate a drive signal; a driver for changing the servo position of the optical pickup in response to the drive signal; a dropout detector for extracting an envelope signal from the read signal to detect a dropout of the read signal; and a controller. The controller changes an equalization characteristics of the equalizer in accordance with an amplitude of the envelope signal during the period of time when the dropout occurs or in response to an occurrence of the dropout.
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申请公布号 |
US2002001266(A1) |
申请公布日期 |
2002.01.03 |
申请号 |
US20010836237 |
申请日期 |
2001.04.18 |
申请人 |
TATEISHI KIYOSHI;KOBAYASHI MASAKI |
发明人 |
TATEISHI KIYOSHI;KOBAYASHI MASAKI |
分类号 |
G11B7/004;G11B7/09;(IPC1-7):G11B7/005 |
主分类号 |
G11B7/004 |
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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