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25 条记录 (耗时 0.031 秒)

    Differential VCO and quadrature VCO using center-tapped cross-coupling of transformer
    3.
    发明授权
    Differential VCO and quadrature VCO using center-tapped cross-coupling of transformer 失效
    差分VCO和正交VCO使用变压器的中心抽头交叉耦合

    公开(公告)号：US08212625B2

    公开(公告)日：2012-07-03

    申请号：US12867798

    申请日：2008-06-13

    申请人： Young Jae Lee ,  Cheon Soo Kim

    发明人： Young Jae Lee ,  Cheon Soo Kim

    IPC分类号： H03B5/12 ,  H03B27/00 ,  H03C3/22

    CPC分类号： H03B5/1228 ,  H03B5/1212 ,  H03B5/1243 ,  H03B5/1296

    摘要： Provided are a differential voltage-controlled oscillator (VCO) and a quadrature VCO using center-tapped cross-coupling of a transformer. The differential VCO and the quadrature VCO can be driven by low power through a current reuse structure and have an excellent phase noise characteristic by center-tapped cross-coupling through a transformer. Further, variable capacitance units for frequency variation are divided into variable capacitance units for coarse tuning and variable capacitance units for fine tuning. Therefore, it is possible to obtain a wide tuning range while voltage oscillation gain is reduced. Further, the differential VCO and the quadrature VCO are configured in such a manner that the respective variable capacitance units operate linearly throughout the entire capacitance region due to control voltage distribution by resistors. Accordingly, it is possible to obtain a linear control voltage-oscillation frequency characteristic. The quadrature VCO according to the present invention can output four-phase quadrature signals while having an excellent phase noise characteristic, without substrate loss and current consumption caused by the switching transistors.

    摘要翻译： 提供了一种差分压控振荡器（VCO）和使用变压器的中心抽头交叉耦合的正交VCO。 差分VCO和正交VCO可以通过电流重用结构的低功率驱动，并且通过通过变压器的中心抽头交叉耦合具有优异的相位噪声特性。 此外，用于频率变化的可变电容单元被分为用于粗调的可变电容单元和用于微调的可变电容单元。 因此，可以获得宽的调谐范围，同时降低电压振荡增益。 此外，差分VCO和正交VCO被配置为使得各个可变电容单元由于由电阻器的控制电压分布而在整个电容区域中线性地工作。 因此，可以获得线性控制电压 - 振荡频率特性。 根据本发明的正交VCO可以输出四相正交信号，同时具有优异的相位噪声特性，而没有由开关晶体管引起的衬底损耗和电流消耗。

    Combined accelerometer and gyroscope system
    4.
    发明授权
    Combined accelerometer and gyroscope system 失效
    组合加速度计和陀螺仪系统

    公开(公告)号：US07765869B2

    公开(公告)日：2010-08-03

    申请号：US11956582

    申请日：2007-12-14

    申请人： Sang Kyung Sung ,  Young Jae Lee ,  Tae Sam Kang

    发明人： Sang Kyung Sung ,  Young Jae Lee ,  Tae Sam Kang

    IPC分类号： G01P9/04 ,  G01C19/56

    CPC分类号： G01C19/56 ,  G01P15/097 ,  G01P15/14

    摘要： An embodiment of the present invention relates to a combined accelerometer and gyroscope system. The combined accelerometer and gyroscope system includes a combined accelerometer and gyroscope for maintaining vibration of a mass body at a constant amplitude using an applied drive voltage, and detecting vibration signals in directions of an acceleration axis and an angular velocity axis. An acceleration axis vibration signal obtainment unit obtains the vibration signal in the direction of the acceleration axis. An amplitude maintenance control unit outputs an acceleration axis vibration maintenance control signal using the vibration signal. An acceleration axis driving input unit receives a voltage signal from the amplitude maintenance control unit and applies the voltage signal to the combined accelerometer and gyroscope. An angular velocity axis vibration signal obtainment unit obtains the vibration signal in the direction of the angular velocity axis. A force balance control unit outputs an angular velocity axis vibration maintenance control signal using the vibration signal received from the angular velocity axis vibration signal obtainment unit. An angular velocity axis driving input unit receives a voltage signal received from the force balance control unit and applies the voltage signal to the combined accelerometer and gyroscope.

    摘要翻译： 本发明的实施例涉及组合的加速度计和陀螺仪系统。 组合的加速度计和陀螺仪系统包括组合的加速度计和陀螺仪，用于使用施加的驱动电压维持恒定振幅的质量体的振动，并且检测加速轴和角速度轴方向上的振动信号。 加速轴振动信号获取单元获得加速轴方向的振动信号。 振幅维持控制单元使用振动信号输出加速轴振动维持控制信号。 加速轴驱动输入单元从振幅维持控制单元接收电压信号，并将该电压信号施加到组合的加速度计和陀螺仪。 角速度轴振动信号获取单元获得在角速度轴方向上的振动信号。 力平衡控制单元使用从角速度轴振动信号获取单元接收的振动信号输出角速度轴振动维持控制信号。 角速度轴驱动输入单元接收从力平衡控制单元接收的电压信号，并将该电压信号施加到组合的加速度计和陀螺仪。

    DC offset cancellation circuit
    7.
    发明授权
    DC offset cancellation circuit 有权
    DC偏移消除电路

    公开(公告)号：US08222944B2

    公开(公告)日：2012-07-17

    申请号：US12950193

    申请日：2010-11-19

    申请人： Young Jae Lee ,  Sang Sung Lee ,  Sang-Gug Lee

    发明人： Young Jae Lee ,  Sang Sung Lee ,  Sang-Gug Lee

    IPC分类号： H03L5/00

    CPC分类号： H03F3/45968 ,  H03F2203/45212 ,  H03M1/822

    摘要： A DC offset cancellation circuit includes: a control signal generation unit generating i (i is a natural number) number of pulse signals having a pulse width corresponding to a DC offset amount; a current source supplying i number of currents each having a different current ratio; a switching unit determining a current quantity to be supplied to a feedback capacitor by adjusting a turn-on quantity of each of the i number of currents according to the pulse width of each of the i number of pulse signals; and an electric charge quantity regulation unit charging DC offset electric charges corresponding to current supplied from the switching unit through the feedback capacitor and transferring the DC offset electric charges charged in the feedback capacitor to a sampling capacitor through a rotary capacitor, to allow the sampling capacitor to primarily store the DC offset electric charges and then secondarily store electric charges corresponding to an input signal.

    摘要翻译： DC偏移消除电路包括：控制信号生成单元，生成具有对应于DC偏移量的脉冲宽度的i（i是自然数）个脉冲信号; 电流源，其提供i个具有不同电流比的电流; 切换单元，根据i个脉冲信号中的每一个的脉冲宽度，调整i个电流的导通量，确定要提供给反馈电容器的电流量; 电荷量调节单元对通过反馈电容器从开关单元提供的电流充电DC偏移电荷，并将通过旋转电容器将充电在反馈电容器中的DC偏移电荷传送到采样电容器，以允许采样电容器 主要存储DC偏移电荷，然后二次存储对应于输入信号的电荷。

    FLAT PANEL DISPLAY
    9.
    发明申请
    FLAT PANEL DISPLAY 审中-公开
    平板显示

    公开(公告)号：US20080094789A1

    公开(公告)日：2008-04-24

    申请号：US11838983

    申请日：2007-08-15

    申请人： Young Jae Lee

    发明人： Young Jae Lee

    IPC分类号： G06F1/16

    CPC分类号： G06F1/1601

    摘要： A flat panel display having a coupling structure for coupling a flat panel display module to a case. The flat panel display comprises a flat panel display module having a plurality of protrusions formed on two opposite sides, and a first case for receiving the flat panel display module. The first case includes a receiving portion providing a predetermined space in which the flat panel display module is seated, a fixing portion for fixing an end of the flat panel display module, and a plurality of coupling portions to be coupled with the plurality of protrusions. The fixing portion is made of an elastic member.

    摘要翻译： 一种具有用于将平板显示模块耦合到壳体的耦合结构的平板显示器。 平板显示器包括具有形成在两个相对侧上的多个突起的平板显示模块和用于接收平板显示模块的第一壳体。 第一壳体包括提供平板显示模块所在的预定空间的接收部分，用于固定平板显示模块的一端的固定部分以及与多个突起物联接的多个联接部分。 固定部分由弹性构件制成。

    Rotatable fish hook
    10.
    发明授权
    Rotatable fish hook 有权
    可旋转鱼钩

    公开(公告)号：US09072283B2

    公开(公告)日：2015-07-07

    申请号：US12356529

    申请日：2009-01-20

    申请人： Young Jae Lee

    发明人： Young Jae Lee

    IPC分类号： A01K83/00

    CPC分类号： A01K83/00

    摘要： A rotatable fish hook is configured for attachment to a legacy fishing lure. The rotatable fish hook may comprise: a barb; an attachment piece for connecting the hook to a fishing lure; and a rotation mechanism, configured to rotationally isolate the barb from the connecting piece. The barb is free to rotate while the attachment piece remains stationary. The rotatable fish hook may comprise: a shank and a bend connected to the shank at a first end and the shank connected to the barb at a second end. The rotation mechanism is configured to rotationally isolate the shank, the bend and the barb from the attachment piece. The shank, the bend and the barb are free to rotate while the attachment piece remains stationary.

    摘要翻译： 可旋转的鱼钩被配置为附接到传统钓鱼诱饵。 可旋转鱼钩可以包括：倒钩; 用于将钩连接到钓鱼诱饵的附件; 以及旋转机构，其构造成将倒钩与连接件旋转地隔离。 倒钩自由旋转，而附件保持静止。 可旋转的鱼钩可以包括：柄和在第一端处连接到柄的弯曲部，并且在第二端处连接到倒钩的柄。 旋转机构构造成将柄，弯曲部和倒钩与安装片旋转隔离。 柄，弯头和倒钩自由旋转，而附件保持静止。