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141 条记录 (耗时 0.021 秒)

    Protecting assembly for a camera
    41.
    发明授权
    Protecting assembly for a camera 失效
    保护相机的组件

    公开(公告)号：US07914212B2

    公开(公告)日：2011-03-29

    申请号：US12335620

    申请日：2008-12-16

    申请人： Zheng Shi ,  Chih-Chiang Chang

    发明人： Zheng Shi ,  Chih-Chiang Chang

    IPC分类号： G03B17/00 ,  G03B17/02

    CPC分类号： G03B17/02

    摘要： A protecting assembly (20) for a camera used in a portable electronic device (10) is provided. The protecting assembly (20) includes a positioning member (14) fixed to a body section (11) of the electronic device (10) and a protecting member (16). The protecting member (16) is mounted on the positioning member (14) and arranged over the camera (12). A process for protecting a camera using the protecting assembly (20) is also provided.

    摘要翻译： 提供了一种用于便携式电子设备（10）中使用的照相机的保护组件（20）。 保护组件（20）包括固定到电子设备（10）的主体部分（11）的定位部件（14）和保护部件（16）。 保护构件（16）安装在定位构件（14）上并布置在照相机（12）上。 还提供了使用保护组件（20）保护相机的过程。

    Door hinge pin for portable electronic device
    43.
    发明授权
    Door hinge pin for portable electronic device 失效
    便携式电子装置的门铰链销

    公开(公告)号：US07698786B2

    公开(公告)日：2010-04-20

    申请号：US11961315

    申请日：2007-12-20

    申请人： Chih-Chiang Chang ,  Yung-Chang Yen

    发明人： Chih-Chiang Chang ,  Yung-Chang Yen

    IPC分类号： E05D5/10

    CPC分类号： H04M1/0202 ,  H04M2250/14 ,  H05K5/023 ,  Y10T16/549 ,  Y10T16/557

    摘要： A door hinge pin (20) for a portable electronic device (900) is provided. The door hinge pin includes a lead pin portion (201), a first pin body portion (202), a second pin body portion (204), a third pin body portion (203), and a tail pin portion (205), which connect with each other in such described order. The lead pin portion and the tail pin portion are respectively positioned substantially vertical to the first pin body portion and the third pin body portion. The first pin body portion is located in parallel with the third pin body portion. The first connecting pin portion is unsymmetrical with the second connecting pin portion about a first reference line X1. The first reference line X1 is defined parallel to the first pin body portion and the third pin body portion and located therebetween. Distance spaced between the first reference line X1 and the first pin body portion is substantially the same as that spaced between the first reference line X1 and the third pin body portion.

    摘要翻译： 提供了一种用于便携式电子设备（900）的门铰链销（20）。 门铰链销包括导销部分（201），第一销体部分（202），第二销主体部分（204），第三销体部分（203）和尾销部分（205），其中 按照这样的顺序相互连接。 导销部分和尾销部分分别位于与第一销主体部分和第三销主体部分基本垂直的位置。 第一销主体部分与第三销主体部分平行。 第一连接销部分与第二连接销部分围绕第一参考线X1不对称。 第一参考线X1被限定为平行于第一销主体部分和第三销主体部分并且位于它们之间。 第一基准线X1和第一销主体部分之间的间隔与第一基准线X1和第三销主体部分之间的距离基本相同。

    Phase-locked loop circuit with a mixed mode loop filter
    50.
    发明申请
    Phase-locked loop circuit with a mixed mode loop filter 失效
    具有混合模式环路滤波器的锁相环电路

    公开(公告)号：US20070189430A1

    公开(公告)日：2007-08-16

    申请号：US11354764

    申请日：2006-02-14

    申请人： Chih-Chiang Chang

    发明人： Chih-Chiang Chang

    IPC分类号： H03D3/24

    CPC分类号： H03L7/093

    摘要： A phase-locked loop circuit includes a phase and frequency detector receiving a reference signal and an output signal of the phase-locked loop circuit for generating a detected signal representing a frequency or phase difference therebetween. A digital charge pump coupled to the phase and frequency detector generates a charge control signal in response to the detected signal. A mixed mode loop filter coupled to the digital charge pump filters the charge control signal and generates an oscillation control signal. A voltage controlled oscillator is coupled to the mixed mode loop filter for generating the output signal of the phase-locked loop circuit by adjusting its oscillation frequency in response to the oscillation control signal. The mixed mode loop filter has both digital and analog characteristics in carrying out filtering the charge control signal, thereby reducing a layout area for the same to be implemented on a semiconductor substrate.

    摘要翻译： 锁相环电路包括相位和频率检测器，其接收参考信号和锁相环电路的输出信号，用于产生表示其间的频率或相位差的检测信号。 耦合到相位和频率检测器的数字电荷泵响应于检测到的信号产生充电控制信号。 耦合到数字电荷泵的混合模式环路滤波器对充电控制信号进行滤波并产生振荡控制信号。 压控振荡器耦合到混合模式环路滤波器，用于通过响应于振荡控制信号调整其振荡频率来产生锁相环电路的输出信号。 混合模式环路滤波器在进行充电控制信号的滤波时具有数字和模拟特性，从而减少了要在半导体衬底上实现的布局面积。