Apparatus and method for controlling the position of an optical

Apparatus and method for controlling the velocity of a disk stor

Apparatus and method for controlling tracking for optical...

Apparatus and method for controlling tracking in disc drive...

Apparatus and method for detecting tracking error signal...

Apparatus and method for detecting wobble defect

Apparatus and method for detecting wobble signal read from...

Apparatus and method for determining write strategy...

Apparatus and method for differential wax-wane focusing and...

Apparatus and method for driving circuit elements based on...

Apparatus and method for dynamic tracking and focus in an optica

Apparatus and method for focus control

Apparatus and method for focus control of read light irradiated

Apparatus and method for generating a reference level to detect

Apparatus and method for generating a tracking error signal...

Apparatus and method for generating RF signal and control...

Apparatus and method for generating tracking error signal

Apparatus and method for layer jump braking control in an...

Apparatus and method for manufacturing optical disks,...

Apparatus and method for multi-spot sampled tracking in an optic