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    MEMS SHOCK SENSORS
    1.
    发明申请
    MEMS SHOCK SENSORS 有权
    MEMS触发传感器

    公开(公告)号：US20080202258A1

    公开(公告)日：2008-08-28

    申请号：US11677762

    申请日：2007-02-22

    申请人： Nurul Amin ,  Song S. Xue ,  Patrick J. Ryan

    发明人： Nurul Amin ,  Song S. Xue ,  Patrick J. Ryan

    IPC分类号： G01L1/16 ,  G01L1/00

    CPC分类号： G01P15/0891 ,  G01P15/06 ,  H01H1/0036 ,  H01H9/168 ,  H01H35/14 ,  H01H35/146 ,  H01H2001/0042

    摘要： A shock sensor comprises a substrate and at least one flexure coupled to the substrate and configured to deflect upon an application of force to the shock sensor sufficient to deflect the flexure. Deflection of the at least one flexure produces a detectable change in an electrical property of the shock sensor. Examples of detectable changes in an electrical property of the shock sensor include an open circuit condition, a closed circuit condition, and a variation in voltage of a piezo-electric detector. In some embodiments, the change in the electrical property of the shock sensor may be remotely read by interrogation of a radio frequency identification transponder positioned on the substrate using a remote radio frequency identification transceiver. The disclosure also relates to a shock sensing system and method of shock detection.

    摘要翻译： 冲击传感器包括衬底和耦合到衬底的至少一个挠曲件，并且构造成在对冲击传感器施加足以偏转挠曲件的情况下偏转。 至少一个弯曲部的偏转产生震动传感器的电性能的可检测变化。 冲击传感器的电性能的可检测变化的示例包括开路状态，闭路状态和压电检测器的电压变化。 在一些实施例中，可以通过使用远程射频识别收发器询问位于衬底上的射频识别应答器来远程读取冲击传感器的电气特性的变化。 本公开还涉及一种冲击检测系统和冲击检测方法。

    Apparatus and method for controlling remnant magnetization in a magnetic recording head
    2.
    发明授权
    Apparatus and method for controlling remnant magnetization in a magnetic recording head 失效
    用于控制磁记录头中的残余磁化的装置和方法

    公开(公告)号：US07440213B2

    公开(公告)日：2008-10-21

    申请号：US11054456

    申请日：2005-02-09

    申请人： Nurul Amin ,  Song S. Xue ,  Patrick J. Ryan

    发明人： Nurul Amin ,  Song S. Xue ,  Patrick J. Ryan

    IPC分类号： G11B27/36 ,  G11B5/03 ,  G11B5/17

    CPC分类号： G11B5/3113 ,  G11B5/1278

    摘要： The present invention provides a magnetic writer. The magnetic writer comprises a write circuit, a write pole, a first write coil for inducing a first magnetic field in the write pole by a first current provided by the write circuit, and a second write coil for inducing a second magnetic field in the write pole by a second current provided by the write circuit. The write circuit provides a first current through the first coil and a second current through the second coil. The write circuit controls the direction of the first current and the second current so that, during writing, the first magnetic field and the second magnetic field have components perpendicular to the air bearing surface that are in the same direction. When not writing, the first magnetic field and second magnetic field have components perpendicular to the air bearing surface in opposite directions.

    摘要翻译： 本发明提供一种磁性写入器。 磁性写入器包括写入电路，写入极，用于通过由写入电路提供的第一电流在写入极中引起第一磁场的第一写入线圈和用于在写入中引起第二磁场的第二写入线圈 由写入电路提供的第二电流。 写入电路提供通过第一线圈的第一电流和通过第二线圈的第二电流。 写入电路控制第一电流和第二电流的方向，使得在写入期间，第一磁场和第二磁场具有垂直于空气轴承表面的分量处于相同方向的分量。 当不写时，第一磁场和第二磁场具有相反方向垂直于空气轴承表面的分量。

    MEMS shock sensors
    6.
    发明授权
    MEMS shock sensors 有权
    MEMS冲击传感器

    公开(公告)号：US07810373B2

    公开(公告)日：2010-10-12

    申请号：US11677762

    申请日：2007-02-22

    申请人： Nurul Amin ,  Song S. Xue ,  Patrick J. Ryan

    发明人： Nurul Amin ,  Song S. Xue ,  Patrick J. Ryan

    IPC分类号： G01P15/00

    CPC分类号： G01P15/0891 ,  G01P15/06 ,  H01H1/0036 ,  H01H9/168 ,  H01H35/14 ,  H01H35/146 ,  H01H2001/0042

    摘要： A shock sensor comprises a substrate and at least one flexure coupled to the substrate and configured to deflect upon an application of force to the shock sensor sufficient to deflect the flexure. Deflection of the at least one flexure produces a detectable change in an electrical property of the shock sensor. Examples of detectable changes in an electrical property of the shock sensor include an open circuit condition, a closed circuit condition, and a variation in voltage of a piezo-electric detector. In some embodiments, the change in the electrical property of the shock sensor may be remotely read by interrogation of a radio frequency identification transponder positioned on the substrate using a remote radio frequency identification transceiver. The disclosure also relates to a shock sensing system and method of shock detection.

    摘要翻译： 冲击传感器包括衬底和耦合到衬底的至少一个挠曲件，并且构造成在对冲击传感器施加足以偏转挠曲件的情况下偏转。 至少一个弯曲部的偏转产生震动传感器的电性能的可检测变化。 冲击传感器的电性能的可检测变化的示例包括开路状态，闭路状态和压电检测器的电压变化。 在一些实施例中，可以通过使用远程射频识别收发器询问位于衬底上的射频识别应答器来远程读取冲击传感器的电气特性的变化。 本公开还涉及一种冲击检测系统和冲击检测方法。

    High frequency field assisted write device
    8.
    发明申请
    High frequency field assisted write device 有权
    高频场辅助写装置

    公开(公告)号：US20080137224A1

    公开(公告)日：2008-06-12

    申请号：US11634767

    申请日：2006-12-06

    申请人： Kaizhong Gao ,  Haiwen Xi ,  Yiming Shi ,  Sining Mao ,  Patrick J. Ryan ,  Song S. Xue ,  Shaoping Li

    发明人： Kaizhong Gao ,  Haiwen Xi ,  Yiming Shi ,  Sining Mao ,  Patrick J. Ryan ,  Song S. Xue ,  Shaoping Li

    IPC分类号： G11B5/02

    CPC分类号： G11B5/1278 ,  G11B2005/001

    摘要： A magnetic writer includes a write element and an oscillation device disposed adjacent to the write element. The first oscillation device includes a first magnetic layer, a second magnetic layer having a magnetization vector including a component perpendicular to a major plane of the first magnetic layer. The first nonmagnetic layer disposed between the first magnetic layer and the second magnetic layer. The first oscillation device generates a high-frequency oscillation field when a current is directed perpendicular to the major plane of the first magnetic layer.

    摘要翻译： 磁性写入器包括写入元件和邻近写入元件设置的振荡器件。 第一振荡装置包括第一磁性层，具有包括垂直于第一磁性层的主平面的分量的磁化矢量的第二磁性层。 设置在第一磁性层和第二磁性层之间的第一非磁性层。 当电流垂直于第一磁性层的主平面时，第一振荡装置产生高频振荡场。