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31 条记录 (耗时 0.019 秒)

    Dual dial rod speed changing indicator
    1.
    发明授权
    Dual dial rod speed changing indicator 失效
    双拨杆变速指示灯

    公开(公告)号：US06397700B1

    公开(公告)日：2002-06-04

    申请号：US09664005

    申请日：2000-09-18

    申请人： Wen-Ching Liu ,  Yu-Chen Chen

    发明人： Wen-Ching Liu ,  Yu-Chen Chen

    IPC分类号： F16C110

    CPC分类号： B62K23/06 ,  B62M25/04 ,  B62M2025/003 ,  Y10T74/20438

    摘要： A dual dial rod speed changing indicator comprises a base board, a wire hub seat, an advancing member, and a withdrawing member. The wire hub seat is acted on by a bias force and pivoted to the base board. The wire hub seat has a first ratchet tooth portion and a second ratchet tooth portion. The advancing member comprises an advancing dial rod and an advancing ratchet pawl pivoted to the dial rod. The advancing dial rod is pivoted to the base board such that the advancing dial rod meshes with the first tooth portion at the time when the advancing dial rod is exerted on by an external force, thereby actuating the wire hub seat to turn and advance. The withdrawing member comprises a locating ratchet pawl and a withdrawing dial rod, which are pivoted with the base board. The withdrawing dial rod has a locating tooth which meshes with the second tooth portion to locate the wire hub seat at the time when the withdrawing dial rod turns on the base board. The wire hub seat is acted on by the bias force to turn in reverse to withdraw.

    摘要翻译： 双拨杆变速指示器包括基板，线毂座，前进构件和退出构件。 电线轮毂座通过偏置力作用并枢转到基板。 线轮毂座具有第一棘轮齿部和第二棘轮齿部。 前进构件包括前进拨盘和向拨盘转动的前进棘爪。 前进拨盘杆枢转到基板，使得当前进拨盘杆由外力施加时，前进拨盘与第一齿部啮合，从而致动线轮毂座转动和前进。 退出构件包括与基板枢转的定位棘爪和抽出式拨盘杆。 拔出拨盘杆具有定位齿，该定位齿与第二齿部啮合，以在拔出拨盘杆打开基板时定位线毂座。 电线轮毂座被偏压力作用，反向倒转。

    Bicycle derailleur gearshift position indicator
    2.
    发明授权
    Bicycle derailleur gearshift position indicator 失效

    公开(公告)号：US06565466B2

    公开(公告)日：2003-05-20

    申请号：US09791785

    申请日：2001-02-26

    申请人： Wen-Ching Liu ,  Yu-Chen Chen

    发明人： Wen-Ching Liu ,  Yu-Chen Chen

    IPC分类号： G01D1300

    CPC分类号： B62M25/04 ,  B62M2025/003 ,  Y10T74/20438

    摘要： A bicycle derailleur gearshift position indicator includes a housing holding a gearshift position indication member, the gearshift position indication member having indication plates corresponding to the gearshift positions of the derailleur system of the bicycle and a view window through which the bicycle rider views the indication of the gearshift position indication member, and a cable take-up wheel suspended below the housing and rotated with the shifters of the derailleur system to move the indication plates of the gearshift position indication member.

    Dual dial rods speed changing controller capable of linear displacement
    3.
    发明授权
    Dual dial rods speed changing controller capable of linear displacement 失效
    双拨杆变速控制器，能够进行线性位移

    公开(公告)号：US06497163B2

    公开(公告)日：2002-12-24

    申请号：US09824634

    申请日：2001-04-04

    申请人： Wen-Ching Liu ,  Yu-Chen Chen

    发明人： Wen-Ching Liu ,  Yu-Chen Chen

    IPC分类号： F16C112

    CPC分类号： B62M25/04 ,  B62K23/06 ,  Y10T74/20438 ,  Y10T74/20636 ,  Y10T74/2137

    摘要： A linearly-displacing dual dial rods speed changing controller comprises a base, a wire hub seat, an advancing member, and a withdrawing member. The wire hub seat is fastened with a guide wire of a speed changer. The wire hub seat is controlled by dial rods of the advancing member and the withdrawing member to displace linearly in a reciprocating manner on the guide rail of the base, thereby actuating the guide wire to bring about a pulling action to attain the speed change.

    摘要翻译： 线性位移双拨杆变速控制器包括基座，线毂座，前进构件和抽出构件。 电线轮毂座用变速器的导丝紧固。 电线轮毂座由前进构件和抽出构件的拨号杆控制，以在往复运动方式线性地移动到基座的导轨上，由此致动导丝以实现拉动动作以实现速度变化。

    Air purifier
    4.
    外观设计
    Air purifier 有权

    公开(公告)号：USD1018814S1

    公开(公告)日：2024-03-19

    申请号：US29830027

    申请日：2022-03-09

    申请人： Yu-Chen Chen

    设计人： Yu-Chen Chen

    摘要： FIG. 1 is a perspective view of an air purifier showing the new design;
    FIG. 2 is a front view of the air purifier shown in FIG. 1;
    FIG. 3 is a rear view of the air purifier shown in FIG. 1;
    FIG. 4 is a left side view of the air purifier shown in FIG. 1;
    FIG. 5 is a right side view of the air purifier shown in FIG. 1;
    FIG. 6 is a top view of the air purifier shown in FIG. 1;
    FIG. 7 is a bottom view of the air purifier shown in FIG. 1; and,
    FIG. 8 is a perspective view of use status of the air purifier.
    The broken lines shown in the figures are for the purpose of illustrating portions of the air purifier and form no part of the claimed design.

    Built-in-self-test (BIST) circuit with digital output for phase locked loops-jitter testing and method thereof
    5.
    发明申请
    Built-in-self-test (BIST) circuit with digital output for phase locked loops-jitter testing and method thereof 审中-公开
    内置自检（BIST）电路，具有锁相环数字输出 - 抖动测试及其方法

    公开(公告)号：US20060058973A1

    公开(公告)日：2006-03-16

    申请号：US11007350

    申请日：2004-12-09

    申请人： Yu-Chen Chen

    发明人： Yu-Chen Chen

    IPC分类号： G01R29/26

    CPC分类号： H03L7/08 ,  G01R29/26

    摘要： A built-in-self-testing (BIST) circuit with digital output for phase locked loops-jitter testing and the method thereof are used to solve the problems of difficult processing and test of high frequency signals encountered during test of jitter signal of phase locked loops. The built-in-self-testing (BIST) circuit with digital output for phase locked loops-jitter testing comprises a phase locked loop unit electrically connected with a frequency divide unit. The frequency divide unit is electrically connected with a signal conversion unit. A digital computation unit is electrically connected with the signal conversion unit. A maximum hold circuit is electrically connected with the digital computation unit. After an input signal is provided to and processed by the phase locked loop unit, the maximum hold circuit outputs a self test output signal exhibiting the occurrence situation of jitter signal of the phase locked loop unit.

    摘要翻译： 具有锁相环数字输出的内置自检（BIST）电路 - 抖动测试及其方法用于解决在锁相抖动信号测试期间遇到的高频信号难以处理和测试的问题 循环。 具有锁相环数字输出的内置自测试（BIST）电路 - 抖动测试包括与分频单元电连接的锁相环单元。 分频单元与信号转换单元电连接。 数字计算单元与信号转换单元电连接。 最大保持电路与数字计算单元电连接。 在将输入信号提供给锁相环单元进行处理之后，最大保持电路输出显示锁相环单元的抖动信号的发生情况的自检输出信号。

    IC card connector
    6.
    发明授权
    IC card connector 失效
    IC卡连接器

    公开(公告)号：US06280254B1

    公开(公告)日：2001-08-28

    申请号：US09510109

    申请日：2000-02-22

    申请人： Kun-Tsan Wu ,  Yu-Chen Chen ,  Chien Cheng Chen

    发明人： Kun-Tsan Wu ,  Yu-Chen Chen ,  Chien Cheng Chen

    IPC分类号： H01R2400

    CPC分类号： H01R13/2442

    摘要： An IC card connector comprises an insulative housing and a plurality of contacts. A plurality of passageways is defined through the insulative housing for receiving the corresponding contacts therein. Each contact comprises a first contacting arm, a second contacting arm and a retaining portion connected between the first and second contacting arms. The first contacting arm comprises a first arcuate portion for electrically a contacting corresponding circuit of an IC card and a first connecting portion connected between the first arcuate portion and the retaining portion. The second contacting arm comprises a second arcuate portion, a soldering portion downwardly extending from the second arcuate portion, a second connecting portion extending from the retaining portion to the soldering portion, and a pair of fixing portions extending from lateral edges of the second connecting portion. In operation, after the IC card is inserted into the IC connector, the first arcuate portion is downwardly pressed to contact the second arcuate portion. The contact forms a parallel electrical connection between the IC card and the circuit board. Thus the signal transmission path is shortened and the electrical resistance of the contact in the present IC card connector is decreased.

    摘要翻译： IC卡连接器包括绝缘壳体和多个触点。 通过绝缘壳体限定多个通道，用于在其中接收相应的触点。 每个触点包括第一接触臂，第二接触臂和连接在第一和第二接触臂之间的保持部分。 第一接触臂包括用于电接触IC卡的相应电路的第一弧形部分和连接在第一弧形部分和保持部分之间的第一连接部分。 第二接触臂包括第二弧形部分，从第二弧形部分向下延伸的焊接部分，从保持部分延伸到焊接部分的第二连接部分，以及从第二连接部分的侧边缘延伸的一对固定部分 。 在操作中，在将IC卡插入IC连接器之后，第一弓形部分被向下按压以接触第二弧形部分。 触点在IC卡和电路板之间形成并联的电气连接。 因此，信号传输路径被缩短，并且本IC卡连接器中的触点的电阻降低。

    ESD/EOS PROTECTION CIRCUIT AND RELATED INTEGRATED CIRCUIT
    8.
    发明申请
    ESD/EOS PROTECTION CIRCUIT AND RELATED INTEGRATED CIRCUIT 失效
    ESD / EOS保护电路及相关集成电路

    公开(公告)号：US20090073619A1

    公开(公告)日：2009-03-19

    申请号：US11857436

    申请日：2007-09-18

    申请人： Yu-Chen Chen ,  Jen-Hao Pan ,  Chih-Kuo Sun

    发明人： Yu-Chen Chen ,  Jen-Hao Pan ,  Chih-Kuo Sun

    IPC分类号： H02H9/04

    CPC分类号： H02H9/046

    摘要： An ESD/EOS protection circuit includes a first protection circuit and a second protection circuit. The first protection circuit is coupled between an I/O pad and a power pad and includes a first P-type transistor. The P-type transistor includes a control node, a floating gate, a first connection node, and a second connection node, wherein the first connection node of the first P-type transistor is coupled to the power pad and the second connection node of the first P-type transistor is coupled to the I/O pad. The second protection circuit is coupled between the I/O pad and a ground pad.

    摘要翻译： ESD / EOS保护电路包括第一保护电路和第二保护电路。 第一保护电路耦合在I / O焊盘和功率焊盘之间，并且包括第一P型晶体管。 P型晶体管包括控制节点，浮动栅极，第一连接节点和第二连接节点，其中第一P型晶体管的第一连接节点耦合到功率垫，并且第二连接节点 第一P型晶体管耦合到I / O焊盘。 第二保护电路耦合在I / O焊盘和接地焊盘之间。

    Land grid array socket
    9.
    发明申请
    Land grid array socket 有权
    土地网格阵列插座

    公开(公告)号：US20070281533A1

    公开(公告)日：2007-12-06

    申请号：US11810245

    申请日：2007-06-05

    申请人： Hao-Yun Ma ,  Chi-Nan Liao ,  Yu-Chen Chen

    发明人： Hao-Yun Ma ,  Chi-Nan Liao ,  Yu-Chen Chen

    IPC分类号： H01R13/62

    CPC分类号： H01R12/88 ,  H05K7/1053

    摘要： A land grid array socket (12) includes a dielectric housing (30) and a number of conductive terminals (40) secured thereto. A stiffener (50) having a pair of transverse flanges (504, 508) and a pair of discrete longitudinal sidewall (506) is disposed around the housing. A load plate (60) is pivotally attached to one of the flange for downwardly pressing a land grid array package seated on the terminals toward the housing. A lever (70) is moveably coupled to the other flange for locking the load plate in position.

    摘要翻译： 平面格栅阵列插座（12）包括绝缘壳体（30）和固定到其上的多个导电端子（40）。 具有一对横向凸缘（504,508）和一对离散的纵向侧壁（506）的加强件（50）围绕壳体设置。 负载板（60）可枢转地附接到凸缘中的一个上，用于向下按压位于端子上的平台格栅阵列组件朝向壳体。 杠杆（70）可移动地联接到另一个凸缘，用于将负载板锁定就位。

    Capacitance multiplier circuit for PLL filter
    10.
    发明申请
    Capacitance multiplier circuit for PLL filter 审中-公开
    PLL滤波器的电容倍增器电路

    公开(公告)号：US20070090872A1

    公开(公告)日：2007-04-26

    申请号：US11253673

    申请日：2005-10-20

    申请人： Yu-Chen Chen ,  Yao-Chun Lu

    发明人： Yu-Chen Chen ,  Yao-Chun Lu

    IPC分类号： G06G7/28

    CPC分类号： H03H11/483 ,  H03L7/0891 ,  H03L7/093

    摘要： A capacitance multiplier circuit for a filter is provided. The capacitance multiplier circuit capable of adjusting its equivalent capacitance and used in the filter, applied to a Phase Locked Loops (PLLs) circuit, includes a first operational amplifier having a positive input end for receiving an input signal, an output end, and a negative input end connected to the output end, a second operational amplifier having a positive input end, a negative input end connected to the output end of the first operational amplifier through a first resistor, and an output end connected to the negative input end through a second resistor, and a capacitor connected between the positive input end of the first operational amplifier and the output end of the second operational amplifier. An equivalent capacitance of the capacitance multiplier circuit is adjusted by configuring the ratio of the first resistor and the second resistor.

    摘要翻译： 提供了一种用于滤波器的电容倍增器电路。 适用于锁相环（PLL）电路的能够调节其等效电容并用于滤波器的电容倍增器电路包括具有用于接收输入信号的正输入端，输出端和负极的第一运算放大器 连接到输出端的输入端，具有正输入端的第二运算放大器，通过第一电阻连接到第一运算放大器的输出端的负输入端，以及通过第二电阻连接到负输入端的输出端 电阻器和连接在第一运算放大器的正输入端和第二运算放大器的输出端之间的电容器。 通过配置第一电阻器和第二电阻器的比率来调节电容乘法器电路的等效电容。