| 摘要 |
PURPOSE:To prevent the S/N from being lowered even if an offtrack takes place by selecting an azimuth angle of recording and reproducing head cores opposite to each other alternately in a direction at a right angle to a track for every adjacent tracks. CONSTITUTION:A recording/reproducing head 1 consists of recording head cores 31-34, reproduction head cores 21-24 and an erasure head 4. An azimuth angle theta is given to the gaps 61-64 of the cores 31-34 in a direction at a right angle of the recording direction D of the track and an inverted angle theta is given to every adjacent tracks. Then the angle theta of the gasp 51-54 of the cores 21-24 is selected the same as the gaps 61-64 of the same track. Thus, a signal from adjacent tracks is reduced at reproduction and even if an offtrack takes place, the S/N is not reduced, then the track density is improved. |
