发明名称 |
Damped turntable/disk arculately positionable relative to a head |
摘要 |
A disk recording system for disks such as videod isks or compact disks has a turntable on which the disk is supported adjacent a recording head. A shaft defining the axis of rotation of the turntable rotates in a bearing and that bearing is itself movable about an axis defined by another shaft. The bearing of the shaft is an air bearing and there is a damper unit for damping that movement. There may be a sensor for detecting the rate of rotation of the shaft defining the axis of rotation of the turntable. The radial displacement of the head relative to the axis of the turntable may be determined on the basis of rotation of the other shaft, and the rotation of the turntable controlled on the basis of the product of signals representing the radial displacement and the rate of rotation of the shaft, respectively.
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申请公布号 |
US6532204(B1) |
申请公布日期 |
2003.03.11 |
申请号 |
US19980040532 |
申请日期 |
1998.03.18 |
申请人 |
NIMBUS COMMUNICATIONS INTERNATIONAL LTD. |
发明人 |
LABINSKY ALEXANDER NUMA;REYNOLDS GERALD ALFRED JOHN;HALLIDAY JONATHAN |
分类号 |
G11B17/34;G11B19/20;G11B19/24;G11B19/247;G11B25/04;(IPC1-7):G11B25/04 |
主分类号 |
G11B17/34 |
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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