| 摘要 |
<p>PURPOSE:To automatically feed a magnetic tape backward by the traveling quantity of the magnetic tape to travel at the time of the automatic feeding of the magnetic tape in one direction and to restore the magnetic tape to the position at the time of loading the magnetic tape by fully automatically reading and displaying tape traveling quantity data at the time of loading the magnetic tape. CONSTITUTION:By loading a cassette 2, the rewinding action of a magnetic tape 3 is started, and a reproducing CTL pulse signal 21 by a control head 1 is inputted to a CTL pulse detecting circuit 11 and a duty deciding circuit 13. Thereafter, when a traveling quantity displaying signal 29 from a counter 12, an action state signal 32, and a tape traveling quantity detecting signal 34 are inputted to a counter 17, in parallel to a control for a displaying element 19, a fast forwarding signal 28 is outputted to an action controller 18, and the down count starting command of a CTL pulse detecting signal 22 is given to a CTL counter 35. Thereafter, when the value of the counter 35 becomes 0, a stopping control signal 28 is outputted to the action controller 18 through the controller 17, and the traveling of the magnetic tape is stopped.</p> |
