Optical disc and recording/producing method therefor

Details Optical disc and recording/producing method therefor Optical disc and recording/producing method therefor

2004-11-29

2008-08-19

Huber, Paul (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C369S053200

Reexamination Certificate

active

07414955

ABSTRACT:
An optical disc including one or more than one recording layers has land areas (131) and groove areas (132) as recording tracks, wherein a data recording area of at least one of the recording layers is divided into a plurality of zones in a radial direction. In each of the divided zones, one or more than one prepits (133) with predetermined data are disposed in a track so that each header area is disposed at ever other boundary among the boundaries between the land areas and the groove areas. Each header area is shifted in the circumferential direction from other header areas apart from the each header area by two boundaries without overlapping in the radial direction.

REFERENCES:
patent: 6345023 (2002-02-01), Fushimi et al.
patent: 9-270131 (1997-10-01), None
patent: 2000-3555 (2000-01-01), None
patent: 2000-36130 (2000-02-01), None
patent: 2001-297446 (2001-10-01), None
International Search Report dated Jul. 15, 2003.
International Preliminary Examination Report dated Oct. 1, 2003.

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