Method and apparatus for providing adaptive control of track...

Details Method and apparatus for providing adaptive control of track... Method and apparatus for providing adaptive control of track...

2005-03-01

2005-03-01

Smith, Zandra V. (Department: 2877)

Optics: measuring and testing

Inspection of flaws or impurities

Surface condition

C369S044320, C369S053150, C250S559450

Reexamination Certificate

active

06862088

ABSTRACT:
The present invention is a method and system to provide adaptive control in an optical storage medium. The method comprises providing a beam of light, reflecting the beam of light off an optical disk and detecting the reflected beam. A value of the reflected beam is compared with a predetermined value, and an output signal is generated if the value of the reflected beam is greater than the predetermined value. A timing signal having a timing interval is generated and a control signal is generated if the output signal occurs over the timing interval. One of a current servo signal and a predetermined servo signal is provided in response to the control signal and a position of the light beam is controlled based on one of the current servo signal and the predetermined servo signal.

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