Peaking control for wideband laser driver applications
    21.
    发明授权
    Peaking control for wideband laser driver applications 有权
    宽带激光驱动应用的峰值控制

    公开(公告)号:US06480067B1

    公开(公告)日:2002-11-12

    申请号:US09723298

    申请日:2000-11-27

    CPC classification number: H03G3/3084

    Abstract: An apparatus comprising a first amplifier, a second amplifier and a control circuit. The first amplifier may be configured to present a first amplified output signal in response to an input signal. The second amplifier may be configured to present a second amplified output signal to provide a shaped signal peaking response in response to the input signal. The first and second amplified output signals are generally combined. The control circuit may be configured to control a ratio between the first amplified output signal and the second amplified output signal. The ratio controls an amount of the peaking response.

    Abstract translation: 一种包括第一放大器,第二放大器和控制电路的装置。 第一放大器可以被配置为响应于输入信号呈现第一放大输出信号。 第二放大器可以被配置为呈现第二放大输出信号以响应于输入信号提供成形的信号峰值响应。 通常组合第一和第二放大输出信号。 控制电路可以被配置为控制第一放大输出信号和第二放大输出信号之间的比率。 该比例控制峰值响应的量。

    Method and apparatus for sensing a vehicle crash condition using
velocity enhanced acceleration crash metrics
    22.
    发明授权
    Method and apparatus for sensing a vehicle crash condition using velocity enhanced acceleration crash metrics 失效
    使用速度增强加速度碰撞度量来感测车辆碰撞状况的方法和装置

    公开(公告)号:US5587906A

    公开(公告)日:1996-12-24

    申请号:US258952

    申请日:1994-06-13

    CPC classification number: B60R21/0132

    Abstract: An apparatus for sensing a vehicle crash condition includes an accelerometer (20) for sensing a vehicle crash condition and for providing a signal having a characteristic indicative of the vehicle crash condition. A crash velocity determining circuit (74) determines a crash velocity value (78) from the accelerometer. Crash metric determining circuits (80, 82, 94, 96, 104, 108) determine crash metric values functionally related to acceleration. Threshold determining circuits (88, 98, 112) determining associated threshold values functionally related to the determined crash velocity value (78). Comparators (90, 100, 116) compare the determined crash metric values against associated threshold values. A controller (34) provides a control signal to control actuation of a restraining device in response to the comparison. A shape monitoring circuit (120) determines if the shape of the acceleration signal matches a predetermined shape. If the shape matches, the controller provides the control signal.

    Abstract translation: 用于感测车辆碰撞状况的装置包括用于感测车辆碰撞状况并用于提供具有指示车辆碰撞状况的特征的信号的加速度计(20)。 碰撞速度确定电路(74)确定来自加速度计的碰撞速度值(78)。 碰撞度量确定电路(80,82,94,96,104,108)确定与加速度功能相关的碰撞度量值。 确定与所确定的碰撞速度值(78)功能相关的相关阈值的阈值确定电路(88,98,112)。 比较器(90,100,116)将确定的故障度量值与相关联的阈值进行比较。 响应于比较,控制器(34)提供控制信号以控制限制装置的致动。 形状监视电路(120)确定加速度信号的形状是否匹配预定的形状。 如果形状匹配,则控制器提供控制信号。

    Field effect transistor circuit for modulator and demodulator
applications
    23.
    发明授权
    Field effect transistor circuit for modulator and demodulator applications 失效
    用于调制器和解调器应用的场效应晶体管电路

    公开(公告)号:US4413239A

    公开(公告)日:1983-11-01

    申请号:US276224

    申请日:1981-06-22

    CPC classification number: H03C1/547 H03C2200/0079 H03D1/2272 H03D1/229

    Abstract: A double balanced modulator-demodulator consisting of two pairs of field ect transistors. A field effect transistor is connected in series between the source electrodes of each of the field effect transistor pairs. The field effect transistors making up each pair are biased so that they operate in the saturated mode. Each of the transistors connected between the source electrodes of the transistor pairs are biased to operate in the linear mode such that drain current varies linearly with drain voltage. A first input signal is connected across the gate electrodes of the transistor pairs while a second input signal is connected across the gate electrodes of the connecting transistors. Bias for each of the transistor pairs is provided by means of a field effect transistor connected between the source electrodes of the transistor pairs and ground. The gates and source electrodes of transistors forming the bias circuit are connected to ground. The outputs of the two pairs are connected in parallel such that the differential output current is proportional to the product of the input signals.

    Abstract translation: 由两对场效应晶体管组成的双平衡调制解调器。 场效应晶体管串联连接在每个场效应晶体管对的源电极之间。 构成每对的场效应晶体管是偏置的,使得它们在饱和模式下工作。 连接在晶体管对的源电极之间的每个晶体管被偏置以在线性模式下工作,使得漏极电流随漏极电压线性变化。 第一输入信号跨越晶体管对的栅电极连接,而第二输入信号跨越连接晶体管的栅电极。 通过连接在晶体管对的源极和地之间的场效应晶体管提供每个晶体管对的偏置。 形成偏置电路的晶体管的栅极和源极连接到地。 两对的输出并联连接,使得差分输出电流与输入信号的乘积成比例。

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