发明名称 |
Focus servo device. |
摘要 |
<p>A focus servo device for an apparatus for reproducing recorded information which includes a pickup for reproducing information recorded on a recording disk and a tracking servo device for maintaining the pickup over a recorded track on the disk, has means (53) in which loop gain is reduced in response to detected abnormalities (22) in a recording disk, in order to prevent interference with a tracking servo device in an optical disk player.</p> |
申请公布号 |
EP0183435(A2) |
申请公布日期 |
1986.06.04 |
申请号 |
EP19850308262 |
申请日期 |
1985.11.13 |
申请人 |
PIONEER ELECTRONIC CORPORATION |
发明人 |
YOSHIO, JUNICHI C/O PIONEER ELECTRONIC CORPORATION |
分类号 |
G02B7/28;G11B7/09;(IPC1-7):G11B7/09 |
主分类号 |
G02B7/28 |
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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