发明名称 |
Servo control apparatus for optical disc player |
摘要 |
A servo control apparatus of an optical pickup is provided for reading recorded information from a recording medium and generates a read signal. The apparatus includes an error signal extracting part for extracting an error signal which indicates a deviation amount of a reading position from a target reading position of the optical pickup; a drive part for driving the optical pickup to change the reading position; an equalizer for equalizing the error signal and supplying a drive signal which indicates a driving amount of the drive part; a detecting part for detecting a dropout portion in the read signal; an identifying part for identifying a form of the dropout portion detected in the detecting part; and a controller. The controller performs control to change a gain of the equalizer in accordance with the identified form of the dropout portion.
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申请公布号 |
US2001026508(A1) |
申请公布日期 |
2001.10.04 |
申请号 |
US20010793729 |
申请日期 |
2001.02.27 |
申请人 |
SASAKI TAKASHI;SUZUKI TAKASHI;SHIMAMURA TAKAO;HONJOU SHINYA;TAKAHASHI KENICHI;HASHIZUKA YOSHIHIRO;KIKUCHI KOICHI;YOSHIMURA HIDEAKI |
发明人 |
SASAKI TAKASHI;SUZUKI TAKASHI;SHIMAMURA TAKAO;HONJOU SHINYA;TAKAHASHI KENICHI;HASHIZUKA YOSHIHIRO;KIKUCHI KOICHI;YOSHIMURA HIDEAKI |
分类号 |
G11B21/10;G11B7/09;(IPC1-7):G11B7/095 |
主分类号 |
G11B21/10 |
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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