| 摘要 |
<p>PURPOSE:To make it unnecessary to confirm if program searching is out and to save a waste of time by so setting the cartridge tape whose program searching is out as not to be fast-fed when it is loaded. CONSTITUTION:Loading a cartridge tape switches on a switch 1, a generating circuit 11 generates a pulse of a constant period of time, a base current flows in a trangister 4 for the period of the pulse width, and a motor 5 rotates to move a magnetic tape. When the program searching is out, a magnetic head 8 reproduces a unrecorded part of a voice signal and outputs no voice output, and the output of a detector 10 remains unchanged, then when the pulse of the circuit 11 ends with a Q output of a fast feeder 3 remaining L, a motor 5 stops. On the other hand, when the program searching is not out, the head 8 outputs a voice signal and converts the Q output to H, and the motor 5 rotates. Then, when a sensing tape switches on a switch 2, a R input of the fast feeder 3 turns to L, the Q output turns to L, and the motor 5 stops.</p> |
