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82 条记录 (耗时 0.022 秒)

    Single-sided unipolar device driver for a piezoelectric transducer in a disc drive
    2.
    发明授权
    Single-sided unipolar device driver for a piezoelectric transducer in a disc drive 失效
    用于光盘驱动器中压电换能器的单面单极器件驱动器

    公开(公告)号：US06744589B2

    公开(公告)日：2004-06-01

    申请号：US09847758

    申请日：2001-05-02

    申请人： John C. Morris ,  Reed D. Hanson

    发明人： John C. Morris ,  Reed D. Hanson

    IPC分类号： G11B5596

    CPC分类号： G11B5/5552

    摘要： A disc drive including a rotatable data track, a dual-stage actuator with a primary actuator motor supporting an actuator arm, a read/write head supported by the actuator arm and communicating with a secondary actuator motor, and steps for controlling range of motion of the secondary actuator motor. The controlling steps include supplying and sustaining a bias signal to a single-sided unipolar device driver that then apply a bias voltage the secondary actuator motor to induce the secondary actuator motor to expand substantially one half of its expansion capabilities. And, confining correction signals provided by a control circuit of the disc drive, used in correcting mechanical position of the secondary actuator motor, to a voltage ranging substantially between a positive “+” and negative “−” voltage substantially equal to the applied bias voltage.

    摘要翻译： 包括可旋转数据轨道的磁盘驱动器，具有支持致动器臂的主执行器电动机的双级致动器，由致动器臂支撑并与辅助致动器电动机连通的读/写头以及用于控制运动范围的步骤 二次执行器电机。 控制步骤包括向单面单极器件驱动器提供和维持偏置信号，然后施加偏置电压次级致动器电动机以使二次致动器电动机基本上扩大其扩展能力的一半。 并且，将用于校正次级致动器电动机的机械位置的盘驱动器的控制电路提供的校正信号限制在基本上等于所施加的偏置电压的正“+”和“负”电压之间的电压 。

    Feedforward compensator for induced vibration
    3.
    发明申请
    Feedforward compensator for induced vibration 有权
    引起振动的前馈补偿器

    公开(公告)号：US20080100953A1

    公开(公告)日：2008-05-01

    申请号：US11586202

    申请日：2006-10-25

    申请人： Raye Abdoulie Sosseh ,  John C. Morris

    发明人： Raye Abdoulie Sosseh ,  John C. Morris

    IPC分类号： G11B5/596

    CPC分类号： G11B19/048 ,  G11B5/5582 ,  G11B5/596 ,  G11B19/042

    摘要： A feedforward compensator for induced vibration is disclosed. Controlled motions in an actuator induce mechanical disturbances in a surrounding cabinet. The feedforward compensator allows such disturbances to be compensated for without the need of a vibration sensor. The compensator provides a feedforward compensation signal configured to compensate for a mechanical disturbance predicted to be induced by a controlled motion of the actuator, and applies the feedforward compensation signal to a signal that controls the motion of the actuator.

    摘要翻译： 公开了一种用于感应振动的前馈补偿器。 执行器中的受控运动引起周围机柜内的机械扰动。 前馈补偿器允许补偿这种干扰，而不需要振动传感器。 补偿器提供前馈补偿信号，其被配置为补偿由致动器的受控运动引起的机械扰动，并将前馈补偿信号施加到控制致动器运动的信号。

    Plant variation compensation for piezoelectric microactuator in dual-stage servo of disc drives
    4.
    发明授权
    Plant variation compensation for piezoelectric microactuator in dual-stage servo of disc drives 有权
    光盘驱动器双级伺服压电微致动器的植物变异补偿

    公开(公告)号：US06741417B2

    公开(公告)日：2004-05-25

    申请号：US09827821

    申请日：2001-04-06

    申请人： Yi-Ping Hsin ,  John C. Morris

    发明人： Yi-Ping Hsin ,  John C. Morris

    IPC分类号： G11B5596

    CPC分类号： G11B5/5552

    摘要： A method and system for providing plant variation compensation for a microactuator in a dual-stage servomechanism of a disc drive. The method includes performing indirect adaptive filtering to identify plant variation in the microactuator, and tuning a compensator for the microactuator based on the plant variation. The indirect adaptive filtering can be performed using a two-stage process, including a first stage of adaptive modeling for the dual-stage servomechanism and a second stage of generating an indirect mode-reference inverse for the microactuator. A combined process can alternatively be employed. The microactuator can be a piezoelectric microactuator which forms a PZT system. The dual-stage servomechanism also includes a coarse actuator such as a voice coil motor.

    摘要翻译： 一种用于在盘驱动器的双级伺服机构中为微致动器提供植物变异补偿的方法和系统。 该方法包括执行间接自适应滤波以识别微致动器中的植物变化，以及基于植物变化调整微致动器的补偿器。 间接自适应滤波可以使用两阶段过程进行，包括用于双级伺服机构的自适应建模的第一阶段和为微型致动器产生间接模式参考反向的第二阶段。 也可以采用组合方法。 微致动器可以是形成PZT系统的压电微致动器。 双级伺服机构还包括诸如音圈电机之类的粗致动器。

    Motion limiter for short leg walker
    8.
    发明授权
    Motion limiter for short leg walker 失效
    短腿步行者的运动限制器

    公开(公告)号：US4919118A

    公开(公告)日：1990-04-24

    申请号：US394398

    申请日：1989-08-14

    申请人： John C. Morris

    发明人： John C. Morris

    IPC分类号： A61F5/01

    CPC分类号： A61F5/0195 ,  A61F5/0127

    摘要： A motion limiter (2) for use with a short leg walker (4) includes a threaded shaft (20) passing freely through a hole (42) in a sliding block or guide (36) that is pivotally attached preferably to an upper part (6) of the walker. The lower end (28) of the shaft is preferably pivotally mounted in a recess (34) in the lower portion (10) of the walker and the remainder of the shaft is free to slide within the hole in the sliding block within a recess (26) in the upper part of the walker. The position of stop members (64, 68), threaded to the shaft above and below the block, determine the amount or fraction of the shaft permitted to pass through the hole in the sliding block. As the stop members are positioned along the shaft relatively far apart from one another, a greater length of the threaded shaft is permitted to pass through the sliding block, thereby increasing the range of motion of the walker. Conversely, as the stop members are moved relatively closer together, the range of motion decreases. If the stop members are positioned so as to abut the sliding block, no range of motion is permitted. The stop members may be positioned by a user without using tools.

    摘要翻译： 用于短腿步行器（4）的运动限制器（2）包括螺纹轴（20），其自由地穿过滑动块或引导件（36）中的孔（42），所述滑动块或引导件优选枢转地附接到上部 6）的步行者。 轴的下端（28）优选地枢转地安装在助行器的下部（10）中的凹部（34）中，并且轴的其余部分在凹部内的滑动块的孔内自由滑动（ 26）在步行者的上部。 在块体上方和下方螺纹连接到轴上的止动构件（64,68）的位置确定允许通过滑块中的孔的轴的数量或分数。 当止动构件沿着相对远离彼此的轴定位时，允许螺纹轴的较大长度通过滑动块，从而增加助行器的运动范围。 相反，随着停止构件相对移动得较近，运动范围减小。 如果止动构件被定位成抵靠滑动块，则不允许运动范围。 停止构件可以由用户定位而不使用工具。

    Apparatus for applying granular refractory material to surfaces
    10.
    发明授权
    Apparatus for applying granular refractory material to surfaces 失效
    用于将颗粒状耐火材料施加到表面的装置

    公开(公告)号：US4163546A

    公开(公告)日：1979-08-07

    申请号：US883731

    申请日：1978-03-06

    申请人： John C. Morris ,  James K. Weidman ,  Michael D. Prior

    发明人： John C. Morris ,  James K. Weidman ,  Michael D. Prior

    IPC分类号： B05B3/14 ,  F27D1/16 ,  B05B3/00

    CPC分类号： B05B3/14 ,  F27D1/1642

    摘要： Our improved nozzle mounting comprises a support member for the nozzle secured to the projecting end of the innermost or granular material carrying conduit. The nozzle is mounted on a horizontally disposed pivot, carried by said support member. Granular material is conveyed from the lower end of the granular conveying pipe to the nozzle through a flexible member and water is supplied to the mixing nozzle by means of a flexible water pipe or hose. Our improved mixing nozzle mounting is simpler in construction than the one shown in our aforesaid patent and hence is cheaper to construct and maintain inasmuch as we have eliminated various rotary seals, gears and the like.

    摘要翻译： 我们改进的喷嘴安装件包括用于喷嘴的支撑构件，该支撑构件固定到最内部或颗粒材料承载导管的突出端。 喷嘴安装在由所述支撑构件承载的水平设置的枢轴上。 颗粒材料通过柔性构件从颗粒输送管的下端输送到喷嘴，水通过柔性水管或软管供应到混合喷嘴。 我们改进的混合喷嘴安装比我们上述专利中所示的更简单，因此构造和维护便宜，因为我们已经消除了各种旋转密封件，齿轮等。