High-density disk recording medium and apparatus and method...

Details High-density disk recording medium and apparatus and method... High-density disk recording medium and apparatus and method...

2006-11-27

2008-11-25

Hindi, Nabil Z (Department: 2627)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

C369S124010

Reexamination Certificate

active

07457210

ABSTRACT:
The present invention relates to a recording medium such as a CD or a DVD in which data is recorded in high-density, and method and apparatus for reproducing data recorded in the high-density recording medium. According to an embodiment, the data reproducing method according to the present invention converts a high-frequency signal reproduced from the recording medium into a plurality of binary signals through comparing the reproduced signal with two or more slicing levels which are different each other, selects one of the plurality of binary signals or a periodic pulse signal based on the difference magnitude between the plurality of binary signals, synchronizes a reference clock with the selected signal, and restores the selected signal into bit stream using the synchronized reference clock.

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