Patent ID: 7106670

Claim:
An apparatus for long seeking control of a pickup head, said pickup head being moved relative to an information storage means by a long-distance driving device and a fine-tuning driving device, and said apparatus for long seeking control of a pickup head comprising: a velocity profile generator generating a target velocity signal in response to a pickup head seeking movement; a velocity sensor for detecting a velocity of said pickup head to generate a velocity error signal; a first compensator electrically connected to said long-distance driving device, and outputting a first control signal to said long-distance driving device in response to said velocity error signal to modify a velocity of said pickup head by a first level; a second compensator electrically connected to said fine-tuning driving device, and outputting a second control signal to said fine-tuning driving device in response to said velocity error signal to modify a velocity of said pickup head by a second level; and a third compensator electrically connected to said fine-tuning driving device, and outputting a third control signal to said fine-tuning driving device to corresponding said pickup head to said information storage means in a predetermined manner.