Optical recording medium and method of recording information...

Details Optical recording medium and method of recording information... Optical recording medium and method of recording information...

2007-06-05

2007-06-05

Neyzari, Ali (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C369S053200, C369S288000, C428S064400

Reexamination Certificate

active

10502000

ABSTRACT:
It is an object of the present invention to provide an optical recording medium that is suitable for recording information therein at a high velocity. An optical recording medium according to the present invention includes a recording layer formed of a phase change material and capable of recording data therein at a linear recording velocity equal to or higher than 10 m/sec, wherein Rtop satisfies the condition that it is larger than {11−(V/5)} and smaller than {22−(2V/5)}, where Rtop (%) is a reflectivity of the crystal phase change material forming the recording layer and V (m/sec) is a target linear recording velocity. According to the present invention, since modulation (MOD) of 50% or more can be ensured, it is possible to effectively suppress the degradation of jitter caused by recording data at a high linear recording velocity equal to or higher than 10 m/sec.

REFERENCES:
patent: 7170848 (2007-01-01), Irie et al.
patent: 2004/0053166 (2004-03-01), Shingai et al.
patent: 2004/0213125 (2004-10-01), Shingai et al.
patent: 2000298879 (2000-10-01), None
patent: 2002008269 (2002-01-01), None
patent: 2002015463 (2002-01-01), None
Kato, Tatsuya et al., “The phase change optical disc with the data recording rate of 140 Mbps”, Technical Digest ISOM'01, International Symposium on Optical Memory 2001, Oct. 16-19, 2001, 4 pgs.

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