Optical disk having address information in lands and grooves, an

Details Optical disk having address information in lands and grooves, an Optical disk having address information in lands and grooves, an

1997-02-06

1999-07-06

Neyzari, Ali

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

3692753, 369 4426, G11B 724

Patent

active

059205407

ABSTRACT:
In an optical disk having a recording plane having a spiral first track and a spiral second track, information being to be recorded into and/or reproduced from said first and second tracks, the first track is formed into a groove-like shape, the second track is formed between adjacent the first tracks and into a land-like shape, and the first and second tracks record informations in different modulation methods.

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