High speed buffer circuit particularly suited for use in sample and hold
circuits
    1.
    发明授权
    High speed buffer circuit particularly suited for use in sample and hold circuits 失效
    高速缓冲电路特别适用于采样和保持电路

    公开(公告)号:US4612464A

    公开(公告)日:1986-09-16

    申请号:US573636

    申请日:1984-01-25

    CPC分类号: H03F3/50 H03F1/307

    摘要: A buffer circuit includes a main buffer circuit section formed of a pair of complementary input side transistors the bases of which are connected together to an input, a dummy circuit section having the same circuit construction as the main buffer circuit section, and a feedback signal section compares the output from the dummy circuit section with a predetermined value to provide a feedback signal which is supplied to the dummy circuit section and the main buffer circuit section so as to make the output of the dummy circuit section equal to that predetermined value.

    摘要翻译: 缓冲电路包括由一对互补输入侧晶体管形成的主缓冲电路部分,其基底连接到输入端,具有与主缓冲电路部分相同的电路结构的虚拟电路部分和反馈信号部分 将虚拟电路部分的输出与预定值进行比较,以提供提供给虚拟电路部分和主缓冲电路部分的反馈信号,以使虚拟电路部分的输出等于该预定值。

    Two phase trapezoidal signal generating circuit
    2.
    发明授权
    Two phase trapezoidal signal generating circuit 失效
    两相梯形信号发生电路

    公开(公告)号:US4645946A

    公开(公告)日:1987-02-24

    申请号:US615542

    申请日:1984-05-31

    CPC分类号: H03K5/151 H03K4/94

    摘要: A two phase voltage signal generating circuit for generating a pair of trapezoidal wave signals of phases opposite to each other is disclosed which includes an input terminal supplied with an input pulse signal, a capacitor, a pair of voltage limiting circuits connected to both ends of the capacitor respectively and for limiting the voltage at each end of the capacitor within a predetermined voltage range, a current control circuit controlled by the input pulse signal and for supplying a charge or discharge current to the capacitor to generate the pair of trapezoidal wave voltage signals at the both ends of the capacitor, a detecting circuit for detecting the change of the intermediate voltage of the trapezoidal wave voltage signals and a symmetry control circuit controlled by an output of the detecting circuit and for controlling the charge or discharge current such that the pair of trapezoidal wave voltage signals become substantially symmetrical to each other.

    摘要翻译: 公开了一种用于产生相互相反的一对梯形波信号的两相电压信号产生电路,其包括一输入端,该输入端提供有一输入脉冲信号,一电容器,一对电压限制电路, 电容器,用于将电容器两端的电压限制在预定电压范围内,电流控制电路由输入脉冲信号控制,并向电容器提供充电或放电电流,以产生一对梯形波电压信号 电容器的两端,用于检测梯形波电压信号的中间电压的变化的检测电路和由检测电路的输出控制的对称控制电路,并用于控制充电或放电电流, 梯形波电压信号彼此基本对称。

    Reclining device for seat
    5.
    发明授权
    Reclining device for seat 失效
    座椅倾斜装置

    公开(公告)号:US5678895A

    公开(公告)日:1997-10-21

    申请号:US578136

    申请日:1995-12-26

    IPC分类号: B60N2/235 B60N2/02

    CPC分类号: B60N2/2352

    摘要: A reclining device for a seat comprises a base plate secured to a seat cushion; and a pivotal plate pivotally connected through a center shaft to the base plate and secured to a seatback. The base plate has a guide portion which faces the pivotal plate. A toothed member is movably guided by the guide portion. The toothed member has a first toothed portion. A cam member is movably guided by the guide portion of the base plate. The cam member moves the toothed member in a first direction when moved in one direction and moves the toothed member in a second direction when moved in the other direction. The pivotal plate has a recess which faces the guide portion of the base plate. The recess has a second toothed portion to which the first toothed portion is engaged when the toothed member is moved in the first direction. An operation lever is pivotally connected through the center shaft to the base plate. A mechanism is used for moving the cam member in the one and the other directions when the operation lever is manipulated.

    摘要翻译: 用于座椅的倾斜装置包括固定到座垫的底板; 以及枢转板,其通过中心轴枢转地连接到基板并固定到座椅靠背。 基板具有面向枢转板的引导部。 齿形构件由引导部可移动地引导。 齿形构件具有第一齿形部分。 凸轮构件由基板的引导部可移动地引导。 当沿一个方向移动时,凸轮构件沿第一方向移动齿形构件,并且当向另一个方向移动时沿着第二方向移动带齿构件。 枢转板具有面向基板的引导部的凹部。 所述凹部具有第二齿形部分,当所述齿形构件沿所述第一方向移动时,所述第一齿形部分接合到所述第二齿形部分。 操作杆通过中心轴枢转地连接到基板。 当操作操作杆时,机构用于沿一个方向和另一个方向移动凸轮构件。

    Sample and hold circuit
    7.
    发明授权
    Sample and hold circuit 失效
    采样保持电路

    公开(公告)号:US4540902A

    公开(公告)日:1985-09-10

    申请号:US452750

    申请日:1982-12-23

    申请人: Fumio Ishikawa

    发明人: Fumio Ishikawa

    IPC分类号: G11C27/02 H03K7/02 H03K17/74

    CPC分类号: G11C27/026 G11C27/024

    摘要: A sample and hold circuit is disclosed, in which first and second terminals to which are supplied drive currents for turning ON and OFF a diode bridge are respectively connected through capacitors to a connection point between output electrodes of switching elements, a diode is connected between the first and second terminals for short-circuiting the capacitors when the diode bridge is made OFF, and input electrodes of the switching elements are respectively connected to first and second points of a reference potential whereby said diode bridge is made ON by a drive current flowing from the first point to the second point of the reference potential.

    摘要翻译: 公开了一种采样保持电路,其中分别通过电容器将二极管电桥的导通和断开的第一和第二端子连接到开关元件的输出电极之间的连接点,二极管连接在 用于在二极管桥断开时使电容器短路的第一和第二端子,并且开关元件的输入电极分别连接到参考电位的第一和第二点,由此所述二极管桥接通过从 第一点到第二点的参考潜力。

    Defective portion detecting device with a horizontal synchronized signal
    8.
    发明授权
    Defective portion detecting device with a horizontal synchronized signal 失效
    具有水平同步信号的缺陷部分检测装置

    公开(公告)号:US5959293A

    公开(公告)日:1999-09-28

    申请号:US980260

    申请日:1997-11-28

    申请人: Fumio Ishikawa

    发明人: Fumio Ishikawa

    CPC分类号: H04B10/071

    摘要: A system to easily detect defective portions of a transmission line in a short time, wherein the optical signal which has been generated on the basis of the transmission pulse which is outputted in synchronization with the horizontal synchronized signal is transmitted via the transmission line, and the reflected-light component which has been reflected by the defective portion in the transmission line is received, and the gain of the reflected-light component is increased by one step for each predetermined number of a horizontal lines on the basis of the horizontal synchronized signal and then compared with the reference voltage, so that the binary data is obtained. The binary data is displayed, along with the axis of the abscissa which represents the distance of the transmission line corresponding to the time difference between the optical signal and the reflected-light component, and the axis of the ordinate which represents the signal level of the reflected-light component.

    摘要翻译: 一种能够在短时间内容易地检测传输线路的缺陷部分的系统,其中基于与水平同步信号同步输出的发送脉冲而产生的光信号经由传输线路发送, 接收由传输线中的故障部分反射的反射光分量,并且基于水平同步信号,对于每个预定数量的水平线,反射光分量的增益增加一步, 然后与参考电压进行比较,从而获得二进制数据。 显示二进制数据以及表示与光信号和反射光分量之间的时间差对应的传输线的距离的横坐标轴和表示该信号水平的纵坐标轴 反射光分量。

    Audio-video modulator system on IC chip
    10.
    发明授权
    Audio-video modulator system on IC chip 失效
    IC芯片上的音视频调制器系统

    公开(公告)号:US5079525A

    公开(公告)日:1992-01-07

    申请号:US622954

    申请日:1990-12-06

    IPC分类号: H03C5/00 H04N5/40

    CPC分类号: H04N5/40 H03C5/00

    摘要: An RF modulator comprising an FM modulator supplied with an audio signal, and AM modulator supplied with the FM modulator output and a video signal, an oscillator for generating a sound subcarrier signal, and an oscillator for generating a main carrier signal. Each of the oscillators consists of a VCO with a PLL circuit, and the entire components are composed of a single IC chip so as to be formed into a compact miniature structure. A modified RF modulator includes a PLL circuit for varying the oscillation frequency of a VCO by a variable frequency divider, and a modulation circuit supplied with a modulating signal and the oscillation output of the VCO. The division ratio (integer) of the variable frequency divider is continuously varied, and the reference frequency of a reference oscillator is set to be less than a predetermined channel interval frequency, thereby reducing the frequency error in the modulated signal output.