COMPACT MAGNETO-OPTICAL DISK FOR CODED DATA STORAGE.

被引：0
|
作者：
Ojima, M. [1 ]
Tsunoda, Y. [1 ]
Maeda, T. [1 ]
Kaku, T. [1 ]
Saito, A. [1 ]
Takayama, S. [1 ]
Sugita, Y. [1 ]
机构：
[1] Hitachi Ltd, Jpn, Hitachi Ltd, Jpn
来源：
IEEE translation journal on magnetics in Japan | 1984年 / TJMJ-1卷 / 06期
关键词：
DATA STORAGE; MAGNETIC - Disk - DATA STORAGE; OPTICAL - Laser Applications;
D O I：
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中图分类号：
学科分类号：
摘要：
A compact magnetooptic disk drive compatible with current optical disk systems is reported. A tracking detection system suitable for use with add-on (nonerasable) optical disks was adopted. High-speed accessing was accomplished by constructing the head from both stationary and moving mechanisms. Noise analyses showed that for large analyzer angles THETA //A , the disk noise was larger than the laser noise which, in turn, was greater than the shot noise, but when the signal-to-noise ratio was maximum at THETA //A 10 degree , the three noise levels were roughly equal.
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页码：698 / 699
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