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    • 31. 发明授权
    • Turntable apparatus for disk drive
    • 转盘转盘装置
    • US06877164B2
    • 2005-04-05
    • US10125490
    • 2002-04-19
    • Dong-Woo Lee
    • Dong-Woo Lee
    • G11B19/20G11B17/028G11B23/00
    • G11B17/0282
    • A turntable apparatus for a disk drive comprises: a rotational shaft of a driving source; a turntable inserted into the rotational shaft so as to be trembled a certain degree toward front and rear, right and left directions; a pivot joint fixed on the rotational shaft from a lower part of the turntable for transmitting a rotational force to the turntable; a guide cap coupled to the rotational shaft from an upper part of the turntable for guiding a disk to be mounted on the turntable; and an elastic member installed between the turntable and the guide cap for providing an expansion elastic force, and thereby, operational reliability of the disk drive can be improved greatly and fabrication cost can be reduced because components producing and assembling operation can be performed easily.
    • 一种用于磁盘驱动器的转盘装置,包括:驱动源的旋转轴; 旋转轴插入旋转轴中以便朝向前后左右方向一定程度的颤动; 枢转接头,其从所述转台的下部固定在所述旋转轴上,用于将旋转力传递到所述转台; 导向盖,其从所述转台的上部联接到所述旋转轴,用于引导要安装在所述转台上的盘; 以及安装在转盘和导向盖之间的弹性构件,用于提供膨胀弹力,从而可以大大提高盘驱动器的操作可靠性,并且可以容易地进行部件生产和组装操作,从而可以降低制造成本。
    • 32. 发明授权
    • Current mirror type sense amplifier circuit for semiconductor memory
device
    • 用于半导体存储器件的电流镜型读出放大器电路
    • US6087859A
    • 2000-07-11
    • US216197
    • 1998-12-18
    • Dong-Woo LeeHeung-Soo Im
    • Dong-Woo LeeHeung-Soo Im
    • G11C17/18G11C7/06G11C11/407G11C11/419G11C16/06
    • G11C7/062G11C2207/063
    • A sense amplifier circuit includes a first voltage-controlled current source to supply current proportional to a first bias voltage to a reference node and a second voltage-controlled current source to supply current proportional to a second bias voltage to a sensing node. The first and second bias voltages are internally generated in response to an externally applied sense amp control signal. A current mirror circuit is also provided for the sense amplifier circuit. The current mirror circuit commonly deliver current proportional to the voltage level of the reference node to the reference and sensing nodes. A differential amplifier amplifies a difference voltage between reference and sensing nodes. This current mirror type sense amplifier circuit allows data sensing operation to be performed without being influenced from the external conditions and without sensing speed loss due to the instability of the precharge current since the voltage-controlled current sources are controlled by the internal bias voltages.
    • 感测放大器电路包括第一电压控制电流源,以向参考节点提供与第一偏置电压成比例的电流,以及将第二电压控制电流源与第二偏置电压成比例的电流提供给感测节点。 响应于外部施加的感测放大器控制信号,内部产生第一和第二偏置电压。 还为读出放大器电路提供电流镜电路。 电流镜电路通常将与参考节点的电压成比例的电流传递给参考和感测节点。 差分放大器放大参考和感测节点之间的差分电压。 该电流镜式读出放大器电路允许执行数据检测操作而不受外部条件的影响,并且由于由于内部偏置电压来控制压控电流源,所以不会由于预充电电流的不稳定而感测到速度损失。