Method and apparatus for DVD recognition using inner and...

Details Method and apparatus for DVD recognition using inner and... Method and apparatus for DVD recognition using inner and...

2006-08-29

2006-08-29

Miller, Brian E. (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S044250, C369S044260

Reexamination Certificate

active

07099253

ABSTRACT:
A DVD recognition method and apparatus is disclosed. First, a disc recognition apparatus uses a laser with a specific wavelength to irradiate an inner area of the DVD, thereby obtaining an inner TE signal. Then, the disc recognition apparatus uses the laser to irradiate an outer area of the DVD, thereby obtaining an outer TE signal. Afterward, the type of the DVD is recognized according to the inner and outer TE signals.

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Machine Translation of Ishikawa (JP 10312565 A).

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