Long seeking method used in an optical disk drive

An optical disk drive comprising:

• a sled;
• a pick-up head on the sled for accessing data stored in a plurality of tracks of an optical disk;
• a controller for applying a velocity control force to the sled so as to move the pick-up head from a initial track of a seeking region of the optical disk to a target track of the seeking region according to a velocity profile, the seeking region comprising an acceleration region and a deceleration region, wherein the velocity profile in the acceleration region increases according to a moving direction of the pick-up head and the velocity profile in the deceleration region decreases;
• a position detector for identifying the position of the pick-up head within the seeking region;
• and
• a kick/brake force signal generator connected to the position detector for applying a first driving force on the sled when the pick-up head is within the acceleration region and applying a second driving force on the sled when the pick-up head is within the deceleration region, wherein a direction of the first driving force is the same as the moving direction of the pick-up head and a direction of the second driving force is opposite to the moving direction of the pick-up head.

A control circuit in an optical disk drive, the optical disk drive comprising:

• a sled;
• a pick-up head on the sled for accessing data stored in a plurality of tracks of an optical disk;
• the control circuit comprising:
• a controller for applying a velocity control force to the sled for moving the pick-up head from a initial track of a seeking region to a target track of the seeking region according to a velocity profile, the seeking region comprising an acceleration region and a deceleration region, wherein the velocity profile in the acceleration region increases and the velocity profile in the deceleration region decreases;
• a position detector for identifying the position of the pick-up head;
• and
• a kick/brake force signal generator connected to the position detector for applying a first driving force on the sled when the pick-up head is within the acceleration region and applying a second driving force on the sled when the pick-up head is within the deceleration region, wherein a direction of the first driving force is the same as the moving direction of the pick-up head and a direction of the second driving force is opposite.