| 摘要 |
<p>PURPOSE:To make an error fall within a target range by enhancing a servo characteristic in accordance with external force if received by the recorder main body. CONSTITUTION:The device possesses a software servo M3 for correcting a speed error and a phase error of a cylinder motor M1 and a capstan motor M2 so as to fall within a target range, and each error of the motors M1 and M2 is corrected so as to fall within a target range by a software servo M3. Then, when it is decided by a deciding means M5 that the external force received by the recorder main body is in excess of a prescribed amt., each coefft. used for calculation of a digital filter M6 constituting the software servo M3 is variably controlled by a control means M7. By this method, even when errors are increased in accordance with external force received by the recorder main body, the errors can fall within a target range.</p> |
