| 摘要 |
<p>PURPOSE:To prevent the generation of a whisker form pulse by shorting both the ends of a control head for a prescribed time in a timing for turning off the connection of the control head from a rewriting signal supply system for a prescribed period in the vicinity of a control signal of a reference. CONSTITUTION:A switch means 4 for shorting both the ends of the control head 14 in the timing for turning off the connection of the control head from the rewriting signal supply system for recording the new control signal is provided. Namely, the switch means 4 shorts both the ends of the control head in the timing for turning off the connection of the control head from the rewriting signal supply system. Accordingly, when the rewriting signal supply system is turned off from the control head 14, a back electromotive force generated from the coil of the control head 14 is self-discharged through the switch means 4. Thereby, the generation of the whisker pulse can be removed.</p> |
