Disc discrimination method and apparatus

Details Disc discrimination method and apparatus Disc discrimination method and apparatus

2011-05-24

2011-05-24

Chow, Van N (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S053220

Reexamination Certificate

active

07948838

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.

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patent: 2002-0020524 (2002-03-01), None
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patent: 10-2005-0031633 (2005-04-01), None

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