Optical data recording medium

Details Optical data recording medium Optical data recording medium

1992-05-21

1996-04-23

Levy, Stuart S.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

369 4428, G11B 7007

Patent

active

055110630

ABSTRACT:
An optical disk with clock pits formed on tracks at predetermined intervals extending in a radial direction of the optical disk. Servo pits are arranged wobbly with respect to the tracks and auxiliary cock pits are arranged in such a manner that at least one auxiliary pit is provided in a non track region between two clock pits adjacent in the radial direction of the optical disk. A plurality of auxiliary clock pits may overlap one another to form an auxiliary clock groove.

REFERENCES:
patent: 4094013 (1978-06-01), Hill et al.
patent: 4313191 (1982-01-01), Winslow et al.
patent: 4736352 (1988-04-01), Satoh et al.
patent: 4831609 (1989-05-01), Suzuki
patent: 4858221 (1989-08-01), Romeas
patent: 4980882 (1990-12-01), Baer et al.
patent: 5063546 (1991-11-01), Ito et al.

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