Recording/playback device and method thereof, and disc

Details Recording/playback device and method thereof, and disc Recording/playback device and method thereof, and disc

1997-02-12

1998-10-27

Edun, Muhammad N.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369 47, 369 50, 3692753, G11B 702

Patent

active

058286390

ABSTRACT:
A data recording region of a disc is divided into a plurality of zones, the plurality of zones comprising a plurality of bands, and with a range from an innermost radius to an outermost radius being divided into four bands by four radii, with the rotational velocity of the disc at each of the bands being fixed in such a manner as to increase disc capacity.

REFERENCES:
patent: 5111305 (1992-05-01), Yamashita
patent: 5245595 (1993-09-01), Yasukawa
patent: 5563800 (1996-10-01), Kubo et al.

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