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    Optical beam focusing and tracking system for an optical disk information storage device
    22.
    发明授权
    Optical beam focusing and tracking system for an optical disk information storage device 失效
    光盘信息存储装置的光束聚焦跟踪系统

    公开(公告)号：US5253236A

    公开(公告)日：1993-10-12

    申请号：US770560

    申请日：1991-10-03

    Applicant: Milton R. Latta ,  Timothy C. Strand ,  James M. Zavislan

    Inventor： Milton R. Latta ,  Timothy C. Strand ,  James M. Zavislan

    IPC: G11B7/09 ,  G11B7/135 ,  G11B11/105 ,  G11B21/00

    CPC classification number: G11B7/1381 ,  G11B11/10576 ,  G11B7/0908 ,  G11B7/0909 ,  G11B7/0912 ,  G11B7/0916

    Abstract: A mask is used to remove substantially all of the first order diffraction components of a reflected light beam which are generated as the beam crosses grooved data tracks in an optical media. The mask may comprise a transparent substrate with an opaque layer having a pair of circular apertures or a bow-tie shaped aperture. The apertures are located outside the regions of interference between the diffracted components and the undiffracted component. The layer may be made of a reflective material for reflecting diffracted components of the reflected beam to a tracking error sensor. The layer may be made of a holographic material for deflecting the diffracted components to a tracking error sensor.

    Abstract translation: 掩模用于去除当光束穿过光学介质中的带槽数据轨道时产生的反射光束的基本上所有的一级衍射分量。 掩模可以包括具有不透明层的透明基底，该不透明层具有一对圆形孔或弓形孔。 这些孔位于衍射部件和未衍射部件之间的干涉区域的外侧。 该层可以由用于将反射光束的衍射分量反射到跟踪误差传感器的反射材料制成。 该层可以由全息材料制成，用于将衍射成分偏转到跟踪误差传感器。

    Laser power sensor for thermally assisted magnetic recording
    24.
    发明授权
    Laser power sensor for thermally assisted magnetic recording 有权
    用于热辅助磁记录的激光功率传感器

    公开(公告)号：US08406090B2

    公开(公告)日：2013-03-26

    申请号：US12042230

    申请日：2008-03-04

    Applicant: Jia-Yang Juang ,  Timothy C. Reiley ,  Timothy C. Strand

    Inventor： Jia-Yang Juang ,  Timothy C. Reiley ,  Timothy C. Strand

    IPC: G11B11/00

    CPC classification number: G11B5/40 ,  G11B5/314 ,  G11B5/455 ,  G11B5/6064 ,  G11B5/607 ,  G11B2005/0005 ,  G11B2005/0021

    Abstract: An apparatus, system, and method for measuring thermally induced electric resistance changes in thermally assisted magnetic recording are disclosed for monitoring laser light output in thermally assisted magnetic recording disk drives. An electrical lead is coupled to a read/write head element. A first electrical resistance in the read/write head element is measured. The read/write head is heated by a laser and a second electrical resistance in the read/write head element is measured. The electrical resistance may be monitored at regular intervals when the read/write head element is on the ramp or the electrical resistance measurements may be continuously monitored as the read/write head flies over the magnetic media.

    Abstract translation: 公开了一种用于测量热辅助磁记录中的热感应电阻变化的装置，系统和方法，用于监测热辅助磁记录盘驱动器中的激光输出。 电引线耦合到读/写头元件。 测量读/写头元件中的第一电阻。 读/写头被激光加热，并且测量读/写头元件中的第二电阻。 当读/写头元件在斜坡上时，可以以规则的间隔监视电阻，或者当读/写头飞越磁介质时可以连续监视电阻测量。

    Hermetically sealed electronics arrangement and approach
    25.
    发明授权
    Hermetically sealed electronics arrangement and approach 失效
    密封电子安排和方法

    公开(公告)号：US07123440B2

    公开(公告)日：2006-10-17

    申请号：US10673593

    申请日：2003-09-29

    Applicant: David Albrecht ,  Barry Stipe ,  Timothy C. Strand

    Inventor： David Albrecht ,  Barry Stipe ,  Timothy C. Strand

    IPC: G11B33/14

    CPC classification number: G11B33/1466 ,  H01B17/305

    Abstract: A hermetic sealing approach involves welding an Aluminum cover onto a low-cost Aluminum housing. According to an example embodiment of the present invention, a metal housing having a base and sidewalls extending upward therefrom is adapted to receive and couple to an HDD arrangement. The metal housing is formed using material and processing (e.g., cold formed or die cast Aluminum) that are relatively inexpensive. A feedthrough arrangement including a plurality of communication pins extends through an opening in the base and is coupled thereto, with the communication pins adapted to pass signals between the inside and the outside of the metal housing. A metal cover is welded to an upper portion of the sidewalls and, with the feedthrough arrangement, hermetically seals the metal housing.

    Abstract translation: 密封方法包括将铝盖焊接在低成本的铝外壳上。 根据本发明的示例性实施例，具有从其向上延伸的基部和侧壁的金属壳体适于接收并耦合到HDD装置。 使用相对便宜的材料和加工（例如，冷成型或压铸铝）来形成金属外壳。 包括多个通信引脚的馈通装置延伸穿过基座中的开口并与其耦合，其中通信引脚适于在金属外壳的内部和外部之间传递信号。 金属盖焊接到侧壁的上部，并且通过馈通装置气密地密封金属壳体。

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