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    • 7. 发明申请
    • High Voltage Tolerant Input Buffer
    • 高电压容限输入缓冲器
    • US20090058517A1
    • 2009-03-05
    • US11850667
    • 2007-09-05
    • Chia-Hui Chen
    • Chia-Hui Chen
    • G05F3/02
    • G11C7/1078G11C7/1084H03K19/00315
    • An input buffer protection circuit is disclosed which comprises a NMOS transistor with a source, drain and gate coupled to an input terminal of the input buffer, a pad and a chip peripheral positive power supply voltage (VDDP), respectively, and a PMOS transistor with a source, drain and gate coupled to the pad, the input terminal of the input buffer and a first terminal of a biasing circuit, respectively, wherein the biasing circuit has a second terminal coupled to the pad and generates at the first terminal a voltage lower than the pad's input signal voltage (VPAD) to turn on the PMOS transistor when the VPAD is lower than or equal to the VDDP, or a voltage substantial equals to the VPAD to turn off the PMOS transistor when the VPAD is higher than the VDDP.
    • 公开了一种输入缓冲器保护电路,其包括NMOS晶体管,其源极,漏极和栅极分别耦合到输入缓冲器的输入端,焊盘和芯片周边正电源电压(VDDP),以及PMOS晶体管, 耦合到焊盘的源极,漏极和栅极,输入缓冲器的输入端子和偏置电路的第一端子,其中偏置电路具有耦合到焊盘的第二端子,并在第一端子处产生电压较低 当VPAD低于或等于VDDP时,焊盘的输入信号电压(VPAD)导通PMOS晶体管,或者当VPAD高于VDDP时,电压基本上等于VPAD关断PMOS晶体管。
    • 8. 发明申请
    • HINGE ROTATIVE ON TWO MUTUAL ORTHOGONAL AXES
    • 铰链旋转在两个相互正交轴上
    • US20070163082A1
    • 2007-07-19
    • US11620903
    • 2007-01-08
    • Chia-Hui ChenTien-Yueh Hsu
    • Chia-Hui ChenTien-Yueh Hsu
    • E05D3/10
    • G06F1/1681E05D3/10E05D11/105E05Y2900/606G06F1/162G06F1/1679H04M1/0212H04N5/2251H04N5/23293Y10T16/54038Y10T16/5472
    • A hinge rotative on two mutual orthogonal axes, it is used in electronic equipment having a screen and a main body; the hinge has a fixing plate having thereon a rotation seat rotative on a vertical axis relatively to the fixing plate and has two connecting legs rotative on a horizontal axis. A nut above the rotation seat is used to screw lock to a rotation shaft, thereby twisting force on the rotation seat can be adjusted; and the connecting legs each has a resilient sleeve forming thereon a plane or forming on its lateral side a strip protruding inwards, by cooperation of the planes/strips with surfaces/recesses on shafts of the connecting legs extending into the resilient sleeves, better positioning effects are obtained; and a connecting area between the rotation shaft and the fixing plate is given with four protrusions, hence the hinge gets a stable structure.
    • 在两个相互正交的轴上旋转的铰链,用于具有屏幕和主体的电子设备中; 铰链具有固定板,其上具有相对于固定板在垂直轴线上旋转的旋转座,并且具有在水平轴线上旋转的两个连接腿。 旋转座上方的螺母用于将锁定旋转到旋转轴,从而可以调节旋转座上的扭转力; 并且连接腿各自具有在其上形成平面的弹性套筒或在其侧面上形成通过平面/条与延伸到弹性套筒中的连接腿的轴上的表面/凹部配合的向内突出的条带,更好的定位效果 获得; 并且旋转轴和固定板之间的连接区域具有四个突起,因此铰链得到稳定的结构。