发明名称 |
Implementing spin-torque oscillator sensing with enhanced demodulator for hard disk drives |
摘要 |
A method, apparatus, and system are provided for implementing spin-torque oscillator (STO) sensing with a demodulator for hard disk drives. The demodulator measures an instantaneous phase of the readback signal from a STO sensor and converts the readback signal into a signal that is proportional to the magnetic field affecting the STO frequency during a bit time. The converted signal is used for processing by conventional data detection electronics. |
申请公布号 |
US8654465(B2) |
申请公布日期 |
2014.02.18 |
申请号 |
US201113316342 |
申请日期 |
2011.12.09 |
申请人 |
BRAGANCA PATRICK MESQUITA;GALBRAITH RICHARD LEO;GURNEY BRUCE ALVIN;SMITH NEIL;WILSON BRUCE;ZAKAI REHAN AHMED;HGST NETHERLANDS B.V. |
发明人 |
BRAGANCA PATRICK MESQUITA;GALBRAITH RICHARD LEO;GURNEY BRUCE ALVIN;SMITH NEIL;WILSON BRUCE;ZAKAI REHAN AHMED |
分类号 |
G11B20/06;G11B5/02 |
主分类号 |
G11B20/06 |
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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