发明名称 |
MAGNETIC TRANSDUCER HEAD UTILIZING MAGNETORESISTANCE EFFECT |
摘要 |
<p>A magnetoresistance effect type magnetic head apparatus has a magnetoresistance effect sensing element, means for applying a bias magnetic field to the sensing element, a detecting circuit for obtaining a detecting signal, a low pass filter for deriving an unwanted signal component from the detecting signal, and means for applying a cancelling magnetic field to the sensing element so as to eliminate the unwanted signal component. An additional sensing element may also be provided to detect an external magnetic field, and a corresponding signal is generated which is applied to a first sensing element so as to cancel the effects of the external magnetic field.</p> |
申请公布号 |
CA1248222(A) |
申请公布日期 |
1989.01.03 |
申请号 |
CA19850489332 |
申请日期 |
1985.08.23 |
申请人 |
SONY CORPORATION |
发明人 |
IMAKOSHI, SHIGEYOSHI;FUKUYAMA, MUNEKATSU;SUYAMA, HIDEO;SOUDA, YUTAKA |
分类号 |
G11B5/03;G11B5/39;(IPC1-7):G11B5/00;G11B5/02 |
主分类号 |
G11B5/03 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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