Dynamic information storage or retrieval – Storage or retrieval by simultaneous application of diverse... – Magnetic field and light beam
Patent
1996-12-11
1998-11-03
Dinh, Tan
Dynamic information storage or retrieval
Storage or retrieval by simultaneous application of diverse...
Magnetic field and light beam
385 6, 369110, G11B 1100
Patent
active
058319425
ABSTRACT:
A high-quality magneto-optic signal is obtained by setting an optimum phase condition at the time of reproducing the land or groove record in a magneto-optic recording medium. By adjusting the angle of inclination of a wavelength plate, an optimum amount of phase compensation is provided to the land or the groove. Furthermore, the inclination of the wavelength plate is made variable, and the DC component of the magneto-optic signal is used as an adjusting signal in order to effect a phase compensation. In reproducing the signals recorded in the land and/or groove, an optimum amount of phase compensation is provided in each case, whereby a best producing condition is obtained, and high-density records can be realized.
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Aoyama Nobuhide
Morimoto Yasuaki
Dinh Tan
Morimoto Yasuaski
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