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US 2009/0080305 A1Published application
Disc discrimination method and apparatus
AssigneeLG Electronics Inc.
InventorSeung Cheol LEE
Life of this patent
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Abstract
A method for discriminating a type of disc. The method includes receiving a signal having at least first and second peak points generated by an optical beam reflected from a record layer of the disc, comparing amplitudes of the first and second peak points, and determining the type of the disc based on a result of the comparing step.
Claims24
A method for discriminating a type of disc, the method comprising:
- receiving a signal having at least first and second peak points generated by an optical beam reflected from a record layer of the disc;
- comparing amplitudes of the first and second peak points;
- and
- determining the type of the disc based on a result of the comparing step.
1 more element
An apparatus for discriminating a type of disc, the apparatus comprising:
- a pickup unit configured to apply an optical beam to the disc;
- a signal detection unit configured to receive a signal having at least first and second peak points generated by the optical beam reflected from a record layer of the disc;
- and
- a control unit configured to compare amplitudes of the first and second peak points, and to determine the type of the disc based on a result comparing the amplitudes of the first and second peak points.
1 more element
Dependencies are inferred from the claim text.