Recording apparatus using magneto-optical effect including control means for inhibiting energizing of the light beam generating means in responsive to coded data
 In a recording apparatus employing a magneto-optical effect, and in which a light beam irradiates a region of a magneto-optical disc while a magnetic field acts on the disc at such region and is modulated by coded data in accordance with a predetermined modulation system; the light beam is intermittently energized by drive pulses, and the energizing of the light beam is inhibited at times corresponding to transitions in the coded data when the ratio Tmin/Tw is greater than 1, in which Tmin is the minimum length between transitions in the coded data and Tw is a window margin for the modulation system employed for modulating the magnetic field. 
Sony Corporation
G G
G11B G11B
inventional inventional
Tamotsu Tetsu
Yamagami Watanabe