Record carrier having servo-track portions and sector addresses

Details Record carrier having servo-track portions and sector addresses Record carrier having servo-track portions and sector addresses

1990-02-20

1991-08-06

Levy, Stuart S.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

3692753, 3692754, G11B 724, G11B 700

Patent

active

050383396

ABSTRACT:
A record-carrier body is described, in which a user can record information by means of optical radiation, which record-carrier body has a relief structure of optically detectable servo-track portions and sector addresses. If the maximum width of the servo-track portions and the areas in the sector addresses is at least of the order of half the track period, the servo track portions can be tracked in an optimum manner and the sector-address areas and the information areas recorded by the user provide a read signal of high amplitude.

REFERENCES:
patent: 4230915 (1980-10-01), Dil et al.
patent: 4499574 (1985-02-01), Braat
patent: 4535439 (1985-08-01), Satoh et al.

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