发明名称 |
Integrated bias and offset recovery amplifier |
摘要 |
A preamplifier circuit is connected to a transducing head, and has integrated bias circuitry and offset recovery circuitry. The offset recovery circuitry is activated in response to a transition from write mode to read more to provide an output signal representative of a signal across the transducing head. The bias circuitry is driven by the output signal of the offset recovery circuitry to bias the transducing head.
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申请公布号 |
US7339760(B2) |
申请公布日期 |
2008.03.04 |
申请号 |
US20040955775 |
申请日期 |
2004.09.30 |
申请人 |
AGERE SYSTEMS INC. |
发明人 |
GLEASON JEFFREY A.;LEIGHTON JOHN D.;O'BRIEN SCOTT M. |
分类号 |
G11B5/02;G11B5/00;H03F3/45 |
主分类号 |
G11B5/02 |
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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