Method and apparatus for writing and reading optical recording m

Details Method and apparatus for writing and reading optical recording m Method and apparatus for writing and reading optical recording m

1999-11-24

2000-09-05

Young, W. R.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

369 54, G11B 7006

Patent

active

061153435

ABSTRACT:
An apparatus for writing on and reading an overwritable optical disk comprises an identifier detector that identifies a recording condition in the sector to be overwritten, and a delay time controller circuit that sets a variation range of the start point for writing according to the recording condition. The record timing of the modulated data signal is changed at random within the set variation range when overwriting the sector of the optical disk.

REFERENCES:
patent: 5216657 (1993-06-01), Nishiuchi et al.
patent: 5490126 (1996-02-01), Furumiya et al.
patent: 5636194 (1997-06-01), Furumiya et al.
patent: 5712837 (1998-01-01), Horigome et al.
patent: 5748586 (1998-05-01), Kobayashi et al.

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