Optical disc having tracking polarity information, and...

Details Optical disc having tracking polarity information, and... Optical disc having tracking polarity information, and...

2008-05-06

2008-05-06

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

Control structure on storage medium sensed by other than...

C369S044270, C369S053370

Reexamination Certificate

active

11542134

ABSTRACT:
An optical disc includes tracking polarity information. The optical disc includes a clamping area, a lead-in area, a data area, and a burst cutting area (BCA). The BCA is present between the clamping area and the lead-in area and in which information regarding the optical disc is recorded, and the information is read before performing tracking in the data area. Accordingly, it is possible to obtain the tracking polarity information and/or reflectivity information without trial and error and directly record or reproduce user data in a data area of the optical disc.

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