Optical information recording medium

Details Optical information recording medium Optical information recording medium

1996-04-22

1998-08-11

Edun, Muhammad N.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

3692751, 369 58, G11B 700

Patent

active

057937419

ABSTRACT:
To present a stable tracking signal with less change, in a recording medium possessing a discontinuous control information recording region of track groove and a data region by a continuous track. The track pitch of a preliminarily recorded control information pit portion region 3 is set larger than the track pitch of a data recording region 2 which is a continuous groove in a disk 1, and the tracking signal modulation degree of the both regions is nearly same, so that stable recording and reproducing may be realized.

REFERENCES:
patent: 5128920 (1992-07-01), Yamamura
patent: 5220556 (1993-06-01), Shimizu
Patent Abstracts of Japan, vol. 18, No. 42 (P-1680) (1994).

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