发明名称 |
Disc drive mechanism and method of operation therefor |
摘要 |
The invention relates to disc drive mechanism ( 100 ) which comprises an actuator ( 113 ) controlling a radial movement of a lens ( 109 ). An actuator controller ( 115 ) generates an actuator control signal which is fed to the actuator ( 113 ). An activation time processor ( 125 ) determines an amplitude variation characteristic of the actuator control signal. Specifically, the activation time processor ( 125 ) determines how the amplitude varies as a function of the rotation angle. The activation time processor ( 125 ) determines an activation time for a position change actuator signal component which causes the actuator ( 113 ) to move the lens ( 109 ) to jump to a different track. The position change actuator signal component is added to the actuator control signal in the actuator controller ( 115 ) thereby generating a combined actuator control signal which both tracks the disc and effectuates a jump. The activation time is selected such that the dynamic range of the actuator control signal is reduced.
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申请公布号 |
US2007115784(A1) |
申请公布日期 |
2007.05.24 |
申请号 |
US20040578456 |
申请日期 |
2004.10.28 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
DEKKER ANTONIUS L.J. |
分类号 |
G11B20/00;G11B7/085;G11B7/09;G11B7/095 |
主分类号 |
G11B20/00 |
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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