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发明公开
CN1549253A 读取光学记录媒体的跳轨装置及其位置侦测方法 失效 - 权利终止

读取光学记录媒体的跳轨装置及其位置侦测方法
摘要：
本发明公开了一种读取光学记录媒体的跳轨装置及其位置侦测方法，该装置可将激光束的光点由盘片上目前轨道移动到目标轨道，并于跳轨的过程中，可稳定且准确地控制跨轨速度与位置；此外，在锁轨时，跨轨速度可以被准确地控制在轨道伺服环路的控制范围之内，将不会影响到伺服控制环路的稳定性；在轨道位置侦测部分，该装置采用混和式轨道侦测方法，根据轨道误差信号与聚焦总和信号的线性区域部分来转换产生轨道位置。
摘要（英）：

The present invention discloses one kind track jumper for reading optical record medium and its position detecting method. The track jumper can shift the light spot of laser beam from current track on the CD to some destination track in stably controlled track crossing speed and position. In addition, the track crossing speed in track locking may be controlled accurately within the control range of the track servo loop without affecting the stability of servo control loop. The track position detecting part of the device adopts mixed track detecting method, and the track position is generated through converting the track error signal and the linear area of the total focusing signal.

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