| 摘要 |
<p>A height adjusting device for adjusting the height of a pickup (4), comprises a support mechanism (53, 54, 55, 56) for supporting the pickup (4) on the carriage (51) in a manner that a position of the pickup (4) along the axis of rotation of the turntable of the optical disc player is adjustable and an adjusting device generates a height adjusting signal for driving the support mechanism (53, 54, 55, 56) to adjust the position of the pickup. A compensated height position signal is generated by superimposing a compensating signal (Va) indicative of the position of the optical system (4c) of the pickup (4) relative to the housing (4a) of the pickup (4) on the height position signal, and the support mechanism (53, 54, 55, 56) is driven in response to the magnitude of the compensated height position signal. <IMAGE></p> |
