Optical recording medium having at least wobbled synchronous inf

Details Optical recording medium having at least wobbled synchronous inf Optical recording medium having at least wobbled synchronous inf

1996-10-18

1999-11-09

Hindi, Nabil

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

G11B 724

Patent

active

059827386

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, at least synchronous information would be obtained with ease and tracking offset would be decreased.

REFERENCES:
patent: 4949331 (1990-08-01), Maeda 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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