Offset for protection against amorphous pips

Details Offset for protection against amorphous pips Offset for protection against amorphous pips

1988-02-24

1989-11-21

Richardson, Robert L.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

G11B 2736

Patent

active

048827215

ABSTRACT:
Provided is a read signal offset during write verify which prevents the false detection of amorphous pips from an optical disk recorder. Amorphous pips are the signals caused by the drop in reflection from an optical disk after the laser has caused the surface material to change from its crystalline state to an amorphous state, but not to a hole. When a hole is not formed in the material, the amorphous material later recrystallizes, the drop in reflection no longer occurs and information is lost.

REFERENCES:
patent: 3868651 (1975-02-01), Oushinsky
patent: 4145758 (1979-03-01), Drexler et al.
patent: 4150402 (1979-04-01), Tietze et al.
patent: 4198701 (1980-04-01), Reddersen et al.
patent: 4308612 (1981-12-01), Miyauchi et al.
patent: 4355318 (1982-10-01), Miyauchi
patent: 4464714 (1984-08-01), Huijser et al.
patent: 4488277 (1982-02-01), McFarlane et al.
patent: 4523304 (1985-06-01), Satoh et al.
patent: 4535439 (1985-08-01), Satoh et al.
patent: 4546462 (1985-11-01), Koishi et al.
patent: 4719612 (1988-01-01), Kenjyo

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