公开(公告)号：US20030218944A1

公开(公告)日：2003-11-27

申请号：US10411788

申请日：2003-04-11

Applicant: Via Technologies, Inc.

Inventor： Keng-Lon Lei ,  Ronnie Lai

IPC: G11B007/085

CPC classification number: G11B7/08529 ,  G11B7/0941 ,  G11B7/0945

Abstract: A method for controlling an optical pickup head of an optical processing apparatus is provided. A first lead-lag compensator is disabled and a second lead-lag compensator is enabled when the optical pickup head switches from a following mode to a seeking mode. Then, an initial operating factor of the second lead-lag compensator is determined according to a last input value and a last output value of the first lead-lag compensator. An initial kick force of the actuator in the seeking mode is calculated by realizing the last input value and the last output value of the first lead-lag compensator immediately before the first lead-lag compensator is disabled. Finally, the optical pickup head is actuated to perform a seeking operation with the initial kick force.

Abstract translation: 提供了一种用于控制光学处理装置的光学拾取头的方法。 第一引导滞后补偿器被禁止，并且当光学拾取头从后续模式切换到寻找模式时，启用第二引导滞后补偿器。 然后，根据第一引导滞后补偿器的最后输入值和最后输出值来确定第二引导滞后补偿器的初始操作系数。 通过在第一超前滞后补偿器被禁用之前实现最后的输入值和第一超前滞后补偿器的最后一个输出值来计算寻求模式下的致动器的初始踢力。 最后，光学拾取头被致动以用初始踢力执行寻找操作。