US 2003/0206502 A1 · Method and apparatus for providing motor control in an optical disk drive system

Abstract

The present invention is a method and system to provide step motor control in an optical storage medium. The system comprises a light source that generates a beam of light and an optical disk that reflects the beam of light. The optical disk has a plurality of tracks. The system further comprises a detector for receiving the reflected beam and a control circuit coupled to the detector. The control circuit provides a step signal in response to the reflected beam. The step signal has a value corresponding to an operational mode of the control circuit. A step motor coupled to the control circuit and the light source drives the light source across the disk by a predetermined step based on the step signal.

Claims20

Dependent claims

A system for providing step motor control in an optical storage medium, comprising:

a light source that generates a beam of light;
an optical disk that reflects the beam of light, said optical disk having a plurality of tracks;
a detector for receiving the reflected beam;
a control circuit coupled to the detector, said control circuit to provide a step signal in response to said reflected beam, said step signal having a value corresponding to an operational mode of said control circuit;
and,
a step motor coupled to said control circuit and said light source, said step motor to drive said light source across said disk by a predetermined step based on said step signal.

3 more elements

Dependencies are inferred from the claim text.

Method and apparatus for providing motor control in an optical disk drive system

Life of this patent

Method and apparatus for providing motor control in an optical disk drive system

Life of this patent

Abstract

Claims20