发明授权
US07417209B2 Recording disk drive with reduced noise thermal flyheight control
有权
记录磁盘驱动器，降低噪音热敏高度控制
- 专利标题： Recording disk drive with reduced noise thermal flyheight control
- 专利标题（中）： 记录磁盘驱动器，降低噪音热敏高度控制
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申请号： US11361561申请日： 2006-02-24
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公开(公告)号： US07417209B2公开(公告)日： 2008-08-26
- 发明人: John Contreras , Takashi Ikeda , Yumi Nagano , Nobumasa Nishiyama , Toyomi Ohsawa , Mike Suk
- 申请人： John Contreras , Takashi Ikeda , Yumi Nagano , Nobumasa Nishiyama , Toyomi Ohsawa , Mike Suk
- 申请人地址： NL Amsterdam
- 专利权人： Hitachi Global Storage Technologies Netherlands BV
- 当前专利权人： Hitachi Global Storage Technologies Netherlands BV
- 当前专利权人地址： NL Amsterdam
- 代理机构： Bracewell & Giuliani LLP
- 主分类号： H05B1/02
- IPC分类号： H05B1/02
摘要：
A system and method for preventing crosstalk noise from being superimposed on a read signal due to noise from a heater line for a slider in a recording disk drive is disclosed. A heater line pair to the slider is not grounded but is in a floating state with respect to an actuator support structure. A heater driver allows a heater current to flow between a positive power supply voltage and a negative power supply voltage. The heater line pair is not grounded, so an impedance is high as viewed from a magnetic disk. Thus, it is possible to effectively suppress a noise transmitted from the magnetic disk and read signal quality is kept from deteriorating due to the crosstalk from the heater line.
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