Phase-change optical recording medium and its writing with high

Details Phase-change optical recording medium and its writing with high Phase-change optical recording medium and its writing with high

1999-02-09

2000-11-28

Dinh, Tan

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

43027013, 428 644, G11B 724

Patent

active

06154437&

ABSTRACT:
In the phase change type optical recording medium of the present invention, loss of reliability by high-temperature storage is prevented, and self-erasure (a phenomenon of partial erasure of the record mark by heat diffusion in the lateral direction during the irradiation of the recording laser beam) is suppressed. There is thus provided an optical recording medium designed for use in a drive system wherein overwriting is conducted at a linear velocity V.sub.0 which satisfies the relation:

REFERENCES:
patent: 5276670 (1994-01-01), Nogami et al.
patent: 5545454 (1996-08-01), Yamada et al.
patent: 5978349 (1999-11-01), Yoshinari et al.

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