| 摘要 |
PURPOSE:To attain the magnetic reproduction with high quality by short-circuiting substantially a winding which energizes a main magnetic pole for record in a reproduction mode in order to impairing the transmittance of a reproduced magnetic flux through said magnetic pole and to reducing the wave of the reproduced wavelength characteristics which is due to a crosstalk of the magnetic flux. CONSTITUTION:A mobile contact 22c of a changeover switch 22 is connected to the 1st fixed contact 22a in a recording mode. Then a magnetic field is produced vertically to a magnetic recording medium 2 which is driven at a prescribed speed over a rubbing surface S by a current flowing to a record winding 3, and a vertical recording layer is magnetized for recording of the prescribed information. While the magnetic flux produced from a vertical recording layer 2c of the medium 2 which is once recorded vertically is picked up by a magnetic resistance element 13. Then a reproduction signal is detected. In this case, the contact 22c is connected to the 2nd fixed terminal 22b and therefore the winding 3 is grounded at its both ends, i.e., shorted. This impairs the transmittance of the magnetic flux to a magnetic pole 1 for record. The magnetic flux passed through the pole 1 reaches an MR element 13 through which detects the reproduced magnetic flux a connection magnetic film 6 and a return path part 5 of the magnetic flux. As a result, a crosstalk of the magnetic flux is eliminated. |
