公开(公告)号：US20060083126A1

公开(公告)日：2006-04-20

申请号：US11236642

申请日：2005-09-28

Applicant: Feng-Fu Lin ,  Chih-Han Liu

Inventor： Feng-Fu Lin ,  Chih-Han Liu

IPC: G11B7/00

CPC classification number: G11B7/08511

Abstract: An apparatus for controlling half-wave layer jumping of a pickup head of an optical disk drive includes a half-wave layer jump controller and an output logic unit. The controller receives a focus error signal from a preamplifier to generate a control signal according to the half wave of the focus error signal. The output logic unit outputs a kickout signal, a half-wave layer jump control compensation, and a brake signal in accordance with the timing of the half-wave layer jump control. The output signal are added to a gap balance signal, and the sum is used for controlling layer jumping of the pickup head. Such method adopts an error obtained by comparing the focus error signal with an ideal cycle signal as an additional compensational force for layer jumping.

Abstract translation: 用于控制光盘驱动器的拾取头的半波跳跃的装置包括半波跳跳控制器和输出逻辑单元。 控制器从前置放大器接收聚焦误差信号，根据聚焦误差信号的半波产生控制信号。 输出逻辑单元根据半波跳跳控制的定时输出跳闸信号，半波跳跳控制补偿和制动信号。 输出信号被添加到间隙平衡信号中，并且用于控制拾取头的层跳跃。 这种方法采用通过将聚焦误差信号与理想周期信号进行比较而获得的误差作为层跳跃的附加补偿力。