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DISK DRIVING DEVICE AND METHOD FOR OPTICAL RECORDING AND REPRODUCTION WITH ACCELERATION/DECELERATION OF FOCUSING MEANS BEING BASED ON A FOCUS ERROR SIGNAL LEVEL
DISK DRIVING DEVICE AND METHOD FOR OPTICAL RECORDING AND REPRODUCTION WITH ACCELERATION/DECELERATION OF FOCUSING MEANS BEING BASED ON A FOCUS ERROR SIGNAL LEVEL
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机译:基于聚焦误差信号水平的加/减聚焦装置光学记录和再现的光盘驱动装置和方法
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摘要
A disk driving device for use in recording and/or reproducing data on an optical recording medium having a plurality of recording layers. When a focus jump operation is executed between the recording layers, an actuator displaces an objective lens in response to a selectively generated acceleration or deceleration pulse and a focus error signal. Instability of the focus jump operation derived from noise superimposed on the focus error signal or from sensitivity variations in the actuator is eliminated.
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