Optical recording medium having particular arrangement of prepit

Details Optical recording medium having particular arrangement of prepit Optical recording medium having particular arrangement of prepit

1998-10-29

2000-05-16

Neyzari, Ali

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

369 13, G11B 724

Patent

active

060646446

ABSTRACT:
An optical recording medium includes grooves and lands on a substrate in which prepits are disposed on an extension of the boundary between a groove and a land such that they are located uniformly on both sides of the center line of the groove or the land and that they do not exist on the both sides of any specific position of the center line of the groove or the land. Through this, address data would be obtained with ease and tracking offset would be decreased.

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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