Optical disk including wobbled guiding groove composed of pits,

Details Optical disk including wobbled guiding groove composed of pits, Optical disk including wobbled guiding groove composed of pits,

1997-04-16

1999-08-17

Dinh, Tan

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

3692752, G11B 724

Patent

active

059403640

ABSTRACT:
An optical disk having thereon intermittent spiral guiding grooves composed of a pit array, wherein each guiding groove has a wobbling side wall at either side, so that the pit array is used as a data reproduce-only area and spaces between adjacent guiding grooves are used as a data recordable area, thereby realizing a high-density optical disk having both the data reproduce-only area and data recordable area.

REFERENCES:
patent: 4769802 (1988-09-01), Tatsduguchi
patent: 5150339 (1992-09-01), Ueda et al.
patent: 5218599 (1993-06-01), Tsuyoshi et al.
patent: 5241531 (1993-08-01), Ohno et al.
patent: 5844883 (1998-12-01), Kanno et al.
patent: 5852599 (1998-12-01), Fuji

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