Method of detecting a type of disc using a reference ratio...

Details Method of detecting a type of disc using a reference ratio... Method of detecting a type of disc using a reference ratio...

2007-04-03

2007-04-03

Korzuch, William (Department: 2627)

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active

10281234

ABSTRACT:
A method detects a disc using signals generated from a light irregularly reflected from pits formed on a recording surface of the disc. The method detects a ratio of a peak-to-peak value of a first signal generated from the irregular reflection to a peak-to-peak value of a second signal generated from the irregular reflection. The method further detects the disc according to magnitudes of the first and second signals and the detected ratio.

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