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    • 2. 发明授权
    • Apparatus for centering and attaching a reinforcing ring to a floppy disk
    • 用于将加强环定心并附接到软盘的装置
    • US4687536A
    • 1987-08-18
    • US874986
    • 1986-06-16
    • Kenichi HiramatsuHidebumi NozawaTakashi Yamauchi
    • Kenichi HiramatsuHidebumi NozawaTakashi Yamauchi
    • B29C65/00B29C65/78B31F5/08G11B17/028G11B23/00B32B31/20G11B5/82
    • G11B17/0284B29C65/00B29C65/78B29C65/7811B29C66/472B31F5/08G11B23/0035B29L2017/005B29L2031/737Y10T156/1089Y10T156/1309Y10T156/17Y10T156/1744
    • Apparatus for positioning and attaching a reinforcing ring in coaxial relationship to a floppy disk, includes a force translating mechanism mounted for movement to and from a resiliently mounted circular receiving member. A cylindrical positioning member, connected to the force translating mechanism, has first and second concentric reference surfaces corresponding respectively to the inner diameter of the reinforcing ring, which is carried by the force translating member, and the inner diameter of the floppy disk, which is disposed about the receiving member. During movement of the force translating mechanism toward the receiving member to bring the reinforcing ring into bonding relationship with the floppy disk, the positioning member moves axially relative to the force translating mechanism between (1) a first position in which the first reference surface causes the force translating mechanism to carry the ring in a predetermined disk-attaching position, to (2) a second position engaging the receiving member in which the second reference surface causes the floppy disk to be located in a position concentric with the disk-attaching position of the ring.
    • 用于将加强环与软盘同轴定位和附接的装置包括一个力平移机构,其被安装成用于移动到弹性安装的圆形接收构件上。 连接到力平移机构的圆柱形定位构件具有分别对应于由力平移构件承载的加强环的内径和软盘的内径的第一和第二同心参考表面,其是 围绕接收构件设置。 在力平移机构朝向接收构件移动以使加强环与软盘结合的关系中,定位构件相对于力平移机构在(1)第一位置和第一位置之间轴向移动,在第一位置,第一参考表面引起 力平移机构,用于将环承载在预定的盘安装位置,(2)接合接收构件的第二位置,其中第二参考表面使软盘位于与盘附接位置同心的位置 戒指。
    • 4. 发明授权
    • Reproduced signal waveform control device for magnetoresistive head
    • 用于磁阻头的再现信号波形控制装置
    • US6072647A
    • 2000-06-06
    • US908012
    • 1997-08-11
    • Kenichi Hiramatsu
    • Kenichi Hiramatsu
    • G11B5/00G11B5/02G11B5/09G11B5/39G11B20/10G11B27/36
    • G11B5/02G11B20/10009G11B27/36G11B5/09G11B2005/0018
    • When a reproduced signal is outputted from the MR head to the envelope detector, the positive envelope joining positive peaks and the negative envelope joining negative peaks are outputted from the envelope detector to the asymmetry detector. An asymmetry value or fluctuation value of the reproduced signal waveform can be found through comparison of the positive envelope and negative envelope and calculation at the asymmetry detector. If these values do not fall within a desired or permissible range, a high degree of asymmetry is indicated in the reproduced signal waveform, and the sense current controller accordingly alters the sense current value. This operation is continued until the envelope of the reproduced signal waveform resulting from the new sense current falls within the desired or permissible range.
    • 当将再现信号从MR头输出到包络检测器时,将正峰值和负包络线连接负峰值的正信号从包络检测器输出到不对称检测器。 可以通过比较不对称检测器的正包络和负包络以及计算来找到再现信号波形的不对称值或波动值。 如果这些值不在期望的或允许的范围内,则在再现信号波形中指示高程度的不对称性,并且感测电流控制器相应地改变感测电流值。 该操作继续进行,直到由新感测电流产生的再现信号波形的包络落入所需或允许的范围内。