Method for controlling optical pickup head upon switching...

Details Method for controlling optical pickup head upon switching... Method for controlling optical pickup head upon switching...

2007-01-23

2007-01-23

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

C369S044290

Reexamination Certificate

active

10411788

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.

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patent: 06325519 (1994-11-01), None
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English abstract of JP 06325519 A.
English abstract of JP 11120722 A.

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