Optical information recording medium

Details Optical information recording medium Optical information recording medium

1996-10-08

1998-11-10

Hindi, Nabil

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

3692753, G11B 724

Patent

active

058354794

ABSTRACT:
A read-only zone or control zone is formed in an optical information recording medium wherein information signal are formed in both grooves and lands. Grooves are not formed in the control zone or read-only zone, and read-only data such as control data, audio-video data, or computer data is pre-recorded as a sequence of pre-formed pits on the track center line. The track pitch of the pre-formed pit sequences in the control zone or read-only zone is equal to the groove pitch in the read-write zones.

REFERENCES:
patent: 5214627 (1993-05-01), Nakashima et al.
patent: 5247494 (1993-09-01), Ohno et al.
patent: 5448552 (1995-09-01), Onagi
patent: 5493552 (1996-02-01), Kobori
patent: 5517485 (1996-05-01), Nishiuchi et al.
patent: 5602823 (1997-02-01), Aoki et al.

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