| 摘要 |
A magnetic tape recording and reproducing apparatus which comprises an endless magnetic tape of little re-cycle time, a driving means for the tape, a recording and reproducing circuit with a magnetic head for recording and reproducing the tape, a rotary cam for vertically moving the magnetic head transversely of the tape, a first cam driving means for continuously rotating the cam as the tape is transported, and a second cam driving means for steppedly rotating the cam in the direction opposite to the direction that the cam is rotated by the first cam driving means, and wherein a spiral recording track is continuously formed, the magnetic head being intermittently moved as the cam is rotated by the second driving means thereby reproducing the recorded information upon returning back for the period multiple of integral number of the re-cycle time of the tape.
|
