Method and apparatus for monitoring operating positions of a media
autochanger
    32.
    发明授权
    Method and apparatus for monitoring operating positions of a media autochanger 失效
    用于监视媒体自动转换器的操作位置的方法和装置

    公开(公告)号:US5682096A

    公开(公告)日:1997-10-28

    申请号:US386991

    申请日:1995-01-05

    摘要: A monitor assembly for a media autochanger having a media holder assembly which is rotatable with respect to a media autochanger support frame about a media holder rotation axis. The media holder assembly includes first and second media engaging members. The monitor assembly includes first indicia located on the first media engaging member, second indicia located on the second media engaging member and an indicia sensor mounted on the support frame. The monitor assembly determines the angular orientation of the media holder assembly and whether an adjacent media engaging member is in a linear registration position by analyzing the indicia sensor signal.

    摘要翻译: 一种用于介质自动转换器的监视器组件,其具有介质保持器组件,所述介质保持器组件相对于介质自动转换器支撑框架围绕介质保持器旋转轴线可旋转。 介质保持器组件包括第一和第二介质接合构件。 监视器组件包括位于第一介质接合构件上的第一标记,位于第二介质接合构件上的第二标记和安装在支撑框架上的标记传感器。 监视器组件通过分析标记传感器信号来确定介质保持器组件的角度定向以及相邻介质接合构件是否处于线性对准位置。

    Write and erase assembly for magneto-optic drive apparatus
    33.
    发明授权
    Write and erase assembly for magneto-optic drive apparatus 失效
    磁光驱动装置的写和擦除装配

    公开(公告)号:US5345431A

    公开(公告)日:1994-09-06

    申请号:US945281

    申请日:1992-09-14

    摘要: A write-erase magnet assembly for a data storage device including: a permanent magnet having a longitudinal axis and having a first longitudinally extending face portion with a first polarity and a second longitudinally extending face portion with a second polarity opposite the first polarity for alternately producing write and erase magnetic bias fields on an adjacently positioned data storage medium; a magnet support assembly for rotatably supporting the permanent magnet; a magnetic detent fixedly positioned relative to the longitudinal axis of the permanent magnet for magnetically producing a biasing torque on the magnet tending to orient the closer of the first and second face portions of the permanent magnet in adjacent relationship with the detent. A coil for applying flipping torque and braking torque for an eddy current rotation dampening assembly are also disclosed.

    摘要翻译: 一种用于数据存储装置的写擦除磁体组件,包括:具有纵向轴线的永磁体,具有第一极性的第一纵向延伸的面部分和具有与第一极性相反的第二极性的第二纵向延伸的面部分,以交替地产生 在相邻的数据存储介质上写入和擦除磁偏置场; 用于可旋转地支撑永磁体的磁体支撑组件; 相对于永磁体的纵向轴线固定定位的磁性制动器,用于在磁体上产生偏置扭矩,倾向于使永磁体的第一和第二面部分的更靠近的方向定位成与制动器相邻的关系。 还公开了一种用于为涡流旋转阻尼组件施加翻转扭矩和制动转矩的线圈。

    Method and apparatus for producing write and erase magnetic field for
disk drive
    34.
    发明授权
    Method and apparatus for producing write and erase magnetic field for disk drive 失效
    用于产生磁盘驱动器的写入和擦除磁场的方法和装置

    公开(公告)号:US5218488A

    公开(公告)日:1993-06-08

    申请号:US729248

    申请日:1991-07-12

    申请人: Thomas E. Berg

    发明人: Thomas E. Berg

    IPC分类号: G11B11/105

    摘要: A magneto-optic disk drive includes a magneto-optic disk and a rotary arm for positioning a focus/bias field switching assembly adjacent bit positions on the disk. A bias field switching assembly includes an annular permanent magnet mounted within a guide for movement between write and erase positions and an objective lens. The magnet has central and pole surfaces generally parallel to the disk. Coils on the guide are energized to drive the magnet between the write and erase positions. In its erase position the magnet impinges a first polarity erase magnetic field on the disk. In its write position the magnet impinges a second polarity write magnetic field upon the disk. The magnet is releasably latched in both its write and erase positions by ferro-magnetic elements mounted to the guide.

    摘要翻译: 磁光盘驱动器包括磁光盘和用于将焦点/偏置场切换组件定位在盘上的位位置的旋转臂。 偏置场切换组件包括安装在引导件内用于在写入和擦除位置之间移动的环形永磁体和物镜。 磁体具有大致平行于盘的中心和极面。 引导件上的线圈被通电以在写入位置和擦除位置之间驱动磁体。 在其擦除位置,磁体在盘上冲击第一极性擦除磁场。 在其写入位置,磁体在盘上照射第二极性写入磁场。 磁铁通过安装在引导件上的铁磁元件可释放地锁定在其写入和擦除位置。

    Write and erase magnetic bias field switching system for a magneto-optic
disk drive
    35.
    发明授权
    Write and erase magnetic bias field switching system for a magneto-optic disk drive 失效
    写入和擦除用于磁光盘驱动器的磁偏置场切换系统

    公开(公告)号:US4977549A

    公开(公告)日:1990-12-11

    申请号:US246776

    申请日:1988-09-20

    申请人: Thomas E. Berg

    发明人: Thomas E. Berg

    IPC分类号: G11B5/02 G11B11/10 G11B11/105

    摘要: A magneto-optic disk drive includes a magneto-optic disk and a rotary arm for positioning a focus/bias field switching assembly adjacent bit positions on the disk. A bias field switching assembly includes an annular permanent magnet mounted within a guide for movement between write and erase positions and an objective lens. The magnet has central and pole surfaces generally parallel to the disk. Coils on the guide are energized to drive the magnet between the write and erase positions. In its erase position the magnet impinges a first polarity erase magnetic field on the disk. In its write position the magnet impinges a second polarity write magnetic field upon the disk. The magnet is releasably latched in both its write and erase positions by ferro-magnetic elements mounted to the guide.

    摘要翻译: 磁光盘驱动器包括磁光盘和用于将焦点/偏置场切换组件定位在盘上的位位置的旋转臂。 偏置场切换组件包括安装在引导件内用于在写入和擦除位置之间移动的环形永磁体和物镜。 磁体具有大致平行于盘的中心和极面。 引导件上的线圈被通电以在写入位置和擦除位置之间驱动磁体。 在其擦除位置,磁体在盘上冲击第一极性擦除磁场。 在其写入位置,磁体在盘上照射第二极性写入磁场。 磁铁通过安装在引导件上的铁磁元件可释放地锁定在其写入和擦除位置。