发明名称 |
Magnetic recording/reproducing apparatus with a current supplying circuit for demagnetizing residual magnetization remaining at an end of a magnetic pole |
摘要 |
There is provided a magnetic recording/reproducing apparatus which has an improved reliability for a reproduced signal by eliminating a deformation in a reproduced signal waveform due to a residual magnetization generated in a magnetic head. The magnetic recording/reproducing apparatus has a magnetic recording medium including a magnetic film to which information is magnetically recorded and a thin-film magnetic head including a magnetic pole and a coil provided around the magnetic pole. A current supplying circuit supplies a current to the coil so that a magnetic state of the magnetic pole is stabilized. The current is supplied to the coil after a recording operation has been completed by the thin-film magnetic head. The current may demagnetize the magnetic pole of the magnetic head, or stabilize the magnetic state of the magnetic pole.
|
申请公布号 |
US6038093(A) |
申请公布日期 |
2000.03.14 |
申请号 |
US19970880518 |
申请日期 |
1997.06.24 |
申请人 |
FUJITSU LIMITED |
发明人 |
TAKADA, NOBORU;TAKEDA, CHIE;WAKAMATSU, HIROAKI;SHINOHARA, MASAYOSHI;SATO, KENJI;AOSHIMA, KENICHI |
分类号 |
G11B5/09;G11B5/00;G11B5/02;G11B5/127;G11B5/455;G11B19/04;G11B20/10;G11B27/36;(IPC1-7):G11B5/465;H01F13/00 |
主分类号 |
G11B5/09 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|