Birch, Stewart, Kolasch & Birch, LLP
Disc discrimination method and apparatus
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.
LG Electronics Inc.
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Seung Cheol
Lee