Abstract:
A method and apparatus for preventing a collision between a recording medium and a lens are disclosed. The method for preventing the collision between the recording medium and the lens includes controlling a gap error signal (GES) between the recording medium and the lens to be maintained at a near field level, detecting a collision between the recording medium and the lens, pulling out the lens from the recording medium during a predetermined time so as to prevent a re-collision between the recording medium and the lens, and re-controlling the gap error signal (GES) between the recording medium and the lens to be re-maintained at the near field level.
Abstract:
The present invention relates to an apparatus for recording/playback including a pickup part that shines light onto a recording medium to receive reflected or diffracted light and provides a method for controlling access speed comprising a step wherein received light is used to record data and generate playback signals, a step wherein the generated playback signal values are verified, and a step wherein, if the play signal value exceeds a reference value, the speed at which the recording medium is accessed by the pickup part is adjusted.
Abstract:
According to the present invention, a method for adjusting the tilt of a recording medium comprises the steps of: installing the recording medium in a recording/reproducing apparatus; first compensating for the tilt in a state that the rotation of the recording medium is stopped; and second compensating tilt in a state that the recording medium is rotated.
Abstract:
A method and apparatus for preventing a collision between a recording medium and a lens are disclosed. The method for preventing the collision between the recording medium and the lens includes controlling a gap error signal (GES) between the recording medium and the lens to be maintained at a near field level, detecting a collision between the recording medium and the lens, pulling out the lens from the recording medium during a predetermined time so as to prevent a re-collision between the recording medium and the lens, and re-controlling the gap error signal (GES) between the recording medium and the lens to be re-maintained at the near field level.