Method and system for detecting cracks in optical discs

Details Method and system for detecting cracks in optical discs Method and system for detecting cracks in optical discs

2005-07-05

2005-07-05

Tran, Thang V. (Department: 2653)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S047440

Reexamination Certificate

active

06914864

ABSTRACT:
A device for detecting a crack in an optical disc including a transmitter to propagate an optical signal through the optical disc and a receiver to detect the propagated signal. From the pattern generated from the received signal, a microcontroller makes an analysis to determine if a crack is present on the optical disc. The method may be incorporated into a conventional disc drive as a new crack detection mechanism.

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