发明名称 |
Magnetic recording/reproducing device with a function of correcting waveform of magnetoresistive-effect head |
摘要 |
A magnetic recording/reproducing device has an inductive write element provided with a coil and magnetic cores for recording information on a medium, a magnetoresistive read element for transducing a change in a magnetic field leaking from a medium, on which information is recorded, into an electrical signal, a detector for detecting an output signal of the read element, a bias field applying unit for applying a bias field to the read element, and a recording/reproducing operation controller for reproducing information based on an output signal from the read element and for controlling the recording current applying unit based on an inputted signal to record information. The recording/reproducing operation control unit has a stabilizing unit for controlling the bias field applying unit to make an absolute value of the bias field in a state where a magnetic field leaking from the medium is applied to the read element larger than that during a normal reproducing operation.
|
申请公布号 |
US5969896(A) |
申请公布日期 |
1999.10.19 |
申请号 |
US19970778761 |
申请日期 |
1997.01.06 |
申请人 |
HITACHI, LTD. |
发明人 |
NAKAMOTO, KAZUHIRO;KAWATO, YOSHIAKI;FUKUI, HIROSHI;HOSHIYA, HIROYUKI |
分类号 |
G11B5/00;G11B5/012;G11B5/02;G11B5/39;G11B5/465;(IPC1-7):G11B5/03 |
主分类号 |
G11B5/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|