| 摘要 |
<p>PURPOSE:To decrease the generation of a head detaching noise and an even number distortion due to a transferred pattern by providing a first pole composed of an N pole and an S pole and a final pole magnetized so as to incline an N pole part and an S pole part in a tape width direction and providing a non-magnetizing part between these. CONSTITUTION:At the inlet side of a tape traveling direction, the first pole 21a providing the magnetic pole of an N pole and an S pole in the tape traveling direction is formed, the final pole 21c of a magnetized group, which inclines in the tape width direction at an outlet side and for the N pole and the S pole, alternately one pole or above respectively exists adjoiningly, is provided, and the section between the first pole 21a and the final pole 21c is separated by a weak magnetic field part or a non-magnetized part. Even when a magnetizing pattern is transferred to a magnetic tape 23, the reproduction is executed by a reproducing head, a magnetic flux to enter the reproducing head due to the final pole 21c comes to be mutually a reverse direction, and therefore, the denying is executed each other. Since the width of the tape traveling direction of the first pole 21a is long and the reverse pole does not exist at an adjoining pole, the magnetic flux variation is smaller, the tape detaching noise is a low sound and the sound volume is smaller. Further, since the direct current component of the magnetization remaining at the magnetic tape 23 passes through the final pole 21c after the erasing, and thus, it comes to be mutually a reverse component in one track of recording and reproducing, and therefore, an even number distortion does not occur.</p> |
