Data slice generation method and apparatus for optical disk...

Details Data slice generation method and apparatus for optical disk... Data slice generation method and apparatus for optical disk...

2008-07-22

2008-07-22

Hindi, Nabil Z (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S124100, C369S124150

Reexamination Certificate

active

07403466

ABSTRACT:
A data slice signal generation method of an optical disk drive, which uses a disk including header areas and data areas of different materials, includes the following steps. First, a data slice signal is generated according to the RF signal read by the optical pickup head of the optical disk drive, and the data slice values, reflecting the central levels of the RF signal, of the data slice signal at the beginnings of the header area and data area are preset. Secondly, when the optical pickup head of the optical disk drive enters a header area or a data area, the data slice signal takes the preset data slice value of the header area or data area, respectively. Then, the data slice signal is adjusted to approach the central levels of the waves of the RF signal by one wave after another.

REFERENCES:
patent: 6614740 (2003-09-01), Park et al.

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