Recording method and disk including initialization of recording

Details Recording method and disk including initialization of recording Recording method and disk including initialization of recording

1995-11-17

1997-07-08

Epps, Georgia Y.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 54, 3692752, 369288, 43027013, G11B 700

Patent

active

056469306

ABSTRACT:
A data recording method is provided in which data are recorded on a rewritable optical disk in a form of record marks which are uniform in width, and in which erasability in overwriting is much improved, thus ensuring a high-density storage of the data. A continuous strip of storage area which is smaller in width than a recording track is produced by irradiation of a first laser beam of a constant recording power, and discontinuous regions of the storage area having a width greater than the recording track are crystallized by irradiation of a second multi-value laser beam according to the data. As a result, remaining regions of the storage area are record marks used to represent the data.

REFERENCES:
patent: 5291470 (1994-03-01), Nishiuchi et al.
patent: 5479392 (1995-12-01), Holtslag et al.
patent: 5490126 (1996-02-01), Furumiya et al.

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