Optical disk having wobbled information shared between tracks

Details Optical disk having wobbled information shared between tracks Optical disk having wobbled information shared between tracks

1996-02-13

1998-09-08

Neyzari, Ali

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

369 13, G11B 724

Patent

active

058055657

ABSTRACT:
In an optical disk recording medium having grooves and lands formed on a substrate and information recording areas formed in association with both the groove and the land, prepits are disposed on a virtual extension of the boundary between a groove and a land, the prepits being disposed to satisfy such requirements that the prepits are disposed on both sides of a virtual extension of the center line of a groove, that the prepits are disposed on both sides of a virtual extension of the center line of a land, that the prepits do not exist on both sides of a position on the center line of the groove, and that the prepits do not exist on both sides of a position on the center line of the land.

REFERENCES:
patent: 4858221 (1989-08-01), Romeas
patent: 4949331 (1990-08-01), Maeda et al.
patent: 5383176 (1995-01-01), Inui et al.
patent: 5414652 (1995-05-01), Mieda et al.
patent: 5448552 (1995-09-01), Onagi
patent: 5493552 (1996-02-01), Kobori
patent: 5499229 (1996-03-01), Murakami et al.

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