Optical disc, optical disc device, and method for recording an o

Details Optical disc, optical disc device, and method for recording an o Optical disc, optical disc device, and method for recording an o

1997-10-07

2000-03-07

Hindi, Nabil

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

369 54, 369 48, 369 59, G11B 700

Patent

active

060349328

ABSTRACT:
In an optical disc, a sector is sequentially formed with a first gap field, a first guard data recording field, a data recording field composed of synchronous signal and user data, a second guard data recording field, and a second gap field, wherein the length of the first and second gap fields, and the length of the first and second guard data recording fields is changed randomly in every recording, and the changing amount of the first and second guard data recording fields is set smaller than the changing amount of the first and second guard data recording fields, thereby suppressing optical disc medium deterioration in every sector and every mark resulting from repeated recording.

REFERENCES:
patent: 5216657 (1993-06-01), Nishiuchi et al.
patent: 5343455 (1994-08-01), Takeuchi et al.
patent: 5388105 (1995-02-01), Takagi et al.
patent: 5528569 (1996-06-01), Fujiie et al.
patent: 5878021 (1996-07-01), Miyauchi et al.
Patent Abstracts of Japan, vol. 018, No. 042 (P-1680), Jan. 21, 1994 & JP 05 266490 A (Fuji Electric Co Ltd.), Oct. 15, 1993, * abstract*.

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