Electronic system with high speed, low power, A/D converter
    1.
    发明授权
    Electronic system with high speed, low power, A/D converter 有权
    电子系统具有高速,低功耗,A / D转换器

    公开(公告)号:US6121913A

    公开(公告)日:2000-09-19

    申请号:US262949

    申请日:1999-03-04

    IPC分类号: G11C7/06 H03K5/24 H03M1/36

    摘要: A method and apparatus for performing analog to digital conversion. A voltage to current converter converts an analog input voltage to an input current. A current reference generates a reference current. A plurality of scaling elements scaled the reference current to yield a plurality of scaled reference currents each corresponding to some voltage level within the dynamic range of the input voltage. The input current is compared to each of the scaled reference currents in a plurality of current comparators to generate a thermometer code from which a digital representation of the analog input voltage is derived.

    摘要翻译: 一种用于执行模数转换的方法和装置。 电压/电流转换器将模拟输入电压转换为输入电流。 当前参考产生参考电流。 多个缩放元件缩放参考电流以产生多个缩放的参考电流,每个基准电流对应于在输入电压的动态范围内的一些电压电平。 将输入电流与多个电流比较器中的每个缩放参考电流进行比较,以生成温度计代码,从该温度计代码中导出模拟输入电压的数字表示。

    Ultra high speed, low power, flash A/D converter utilizing a current
mode regenerative comparator
    2.
    发明授权
    Ultra high speed, low power, flash A/D converter utilizing a current mode regenerative comparator 失效
    超高速,低功耗,闪存A / D转换器利用电流模式再生比较器

    公开(公告)号:US6037890A

    公开(公告)日:2000-03-14

    申请号:US940159

    申请日:1997-09-30

    IPC分类号: G11C7/06 H03K5/24 H03M1/36

    摘要: A method and apparatus for performing analog to digital conversion. A voltage to current converter converts an analog input voltage to an input current. A current reference generates a reference current. A plurality of scaling elements scaled the reference current to yield a plurality of scaled reference currents each corresponding to some voltage level within the dynamic range of the input voltage. The input current is compared to each of the scaled reference currents in a plurality of current comparators to generate a thermometer code from which a digital representation of the analog input voltage is derived.

    摘要翻译: 一种用于执行模数转换的方法和装置。 电压/电流转换器将模拟输入电压转换为输入电流。 当前参考产生参考电流。 多个缩放元件缩放参考电流以产生多个缩放的参考电流,每个基准电流对应于在输入电压的动态范围内的一些电压电平。 将输入电流与多个电流比较器中的每个缩放参考电流进行比较,以生成温度计代码,从该温度计代码中导出模拟输入电压的数字表示。

    Low voltage microelectromechanical RF switch architecture
    3.
    发明授权
    Low voltage microelectromechanical RF switch architecture 有权
    低压微机电RF开关架构

    公开(公告)号:US07233776B2

    公开(公告)日:2007-06-19

    申请号:US10879544

    申请日:2004-06-29

    IPC分类号: H04B1/44

    CPC分类号: H01H59/0009 H01H47/325

    摘要: According to one embodiment a microelectromechanical (MEMS) switch is disclosed. The MEMS switch includes a pulse generator to provide a low voltage source, a transformer coupled to the pulse generator to boost a voltage received from the pulse generator and a switch component coupled to the pulse generator. The switch component includes an actuation capacitor to store charge associated with the voltage received from the transformer.

    摘要翻译: 根据一个实施例,公开了一种微机电(MEMS)开关。 MEMS开关包括提供低电压源的脉冲发生器,耦合到脉冲发生器的变压器,以升高从脉冲发生器接收的电压和耦合到脉冲发生器的开关部件。 开关组件包括用于存储与从变压器接收的电压相关联的电荷的致动电容器。

    High speed current sense amplifier
    6.
    发明授权
    High speed current sense amplifier 失效
    高速电流检测放大器

    公开(公告)号:US5834953A

    公开(公告)日:1998-11-10

    申请号:US756203

    申请日:1996-11-25

    IPC分类号: G01R19/00 G01R31/30 G11C7/06

    摘要: A high speed current sense amplifier useful in memory devices, which includes a current-to-voltage amplifier that is coupled to a voltage amplifier. The current-to-voltage amplifier has an input impedance that is lower than its output impedance. The voltage amplifier has an input impedance that is larger than the input impedance of the current-to-voltage amplifier. The current sense amplifier can sense the current relationship between two current inputs in about 200 pico-seconds. Embodiments of the current sense amplifier enable current sensing either near the power supply voltage or near ground, thus eliminating the need for intermediate voltages. Embodiments of the current sense amplifier draw current from the current inputs only during the 200 pico-second sensing time and does not require external latching circuitry.

    摘要翻译: 一种用于存储器件的高速电流检测放大器,其包括耦合到电压放大器的电流 - 电压放大器。 电流 - 电压放大器的输入阻抗低于其输出阻抗。 电压放大器的输入阻抗大于电流 - 电压放大器的输入阻抗。 电流检测放大器可以以大约200皮秒的速度感测两个电流输入之间的电流关系。 电流检测放大器的实施例使得能够在电源电压附近或靠近接地处感测电流,从而消除对中间电压的需要。 电流检测放大器的实施例仅在200微秒的感测时间内从电流输入端抽取电流,并且不需要外部锁存电路。

    Clock signal frequency multiplier
    7.
    发明授权
    Clock signal frequency multiplier 失效
    时钟信号倍频器

    公开(公告)号:US5821785A

    公开(公告)日:1998-10-13

    申请号:US691765

    申请日:1996-08-02

    摘要: The invention relates to a clock signal frequency multiplier circuit. The circuit multiplies the speed of a clock signal of an integrated circuit (IC) by a factor N to generate a times-N clock signal. The circuit first receives a clock signal. Next, the circuit replicates the clock signal into a plurality of N component signals. Each Jth component signal is delayed from the (J-1)th component signal by 1/N cycles, where J equals 1 to N. The (J=1)th component signal is the clock signal. The N component signals are referred to as phase-shifted components. Finally, the circuit logically combines the phase-shifted components into a times-N clock signal.

    摘要翻译: 本发明涉及时钟信号倍频电路。 该电路将集成电路(IC)的时钟信号的速度乘以因子N以产生时间N时钟信号。 电路首先接收时钟信号。 接下来,电路将时钟信号复制成多个N个分量信号。 每个第j个分量信号从第(J-1)个分量信号延迟1 / N个周期,其中J等于1到N.第(J = 1)分量信号是时钟信号。 N分量信号被称为相移分量。 最后,电路逻辑地将相移分量组合成N次时钟信号。

    SRAM-address-change-detection circuit
    8.
    发明授权
    SRAM-address-change-detection circuit 失效
    SRAM地址变化检测电路

    公开(公告)号:US5199002A

    公开(公告)日:1993-03-30

    申请号:US591439

    申请日:1990-10-01

    IPC分类号: G11C8/18 G11C11/418

    CPC分类号: G11C11/418 G11C8/18

    摘要: For enabling a static, random-access-memory (500) bit lines (556 and 558) pre-charging circuit (518), employed is an address-change-detection circuit (510) having a plurality of address-change-detectors (570 and 572) each for detecting a change in an associated SRAM addressing signal and, driven by the address-change detectors (570 and 572), a pulse generator (700) driving the pre-charging circuit (518).

    摘要翻译: 为了实现静态的随机存取存储器(500)位线(556和558)预充电电路(518),采用地址变化检测电路(510),其具有多个地址变化检测器 570和572),用于检测相关联的SRAM寻址信号的变化,并且由地址变化检测器(570和572)驱动,驱动预充电电路(518)的脉冲发生器(700)。

    Output buffer circuit
    9.
    发明授权
    Output buffer circuit 失效
    输出缓冲电路

    公开(公告)号:US5148056A

    公开(公告)日:1992-09-15

    申请号:US676780

    申请日:1991-03-27

    IPC分类号: H03K19/003

    CPC分类号: H03K19/00361

    摘要: An output buffer circuit is disclosed that has optimized ground bounce characteristics while maintaining low propagation delay. The output buffer may be incorporated within an integrated circuit and may be embodied in either inverting or non-inverting and in either enabling and non-enabling configurations. The output buffer circuit includes a feedback means coupled to the output terminal of the output buffer and to a pull-down transistor. The feedback means provides a feedback voltage to the gate of the pull-down transistor to regulate the derivative of source current with respect to time. The feedback means includes a pair of field effect transistors and either an inverter gate or a NOR gate coupled across one of the feedback field effect transistors.

    摘要翻译: 公开了一种具有优化的地面反弹特性同时维持低传播延迟的输出缓冲电路。 输出缓冲器可以并入集成电路中,并且可以以反相或非反相以及启用和非启用配置来体现。 输出缓冲器电路包括耦合到输出缓冲器的输出端子和下拉晶体管的反馈装置。 反馈装置向下拉晶体管的栅极提供反馈电压以调节源极电流相对于时间的导数。 反馈装置包括一对场效应晶体管,以及耦合在反馈场效应晶体管之一上的反相器门或或非门。

    Detecting peak signals
    10.
    发明授权
    Detecting peak signals 失效
    检测峰值信号

    公开(公告)号:US07064585B2

    公开(公告)日:2006-06-20

    申请号:US10748462

    申请日:2003-12-30

    申请人: Kevin W. Glass

    发明人: Kevin W. Glass

    IPC分类号: H03K5/153

    CPC分类号: G01R19/04 H03K5/082 H03K5/153

    摘要: In one embodiment, the present invention includes an apparatus having a threshold detector with a current comparator to determine if an input signal exceeds a threshold. The input signal may be obtained from a received optical signal and may be compared to a reference signal obtained from a hierarchical Schmitt trigger, in certain embodiments.

    摘要翻译: 在一个实施例中,本发明包括具有阈值检测器的装置,具有电流比较器以确定输入信号是否超过阈值。 在某些实施例中,输入信号可以从接收到的光信号获得并且可以与从分层施密特触发获得的参考信号进行比较。