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    • 1. 发明授权
    • Process of controlling a switch of a switched-capacitance device, and corresponding switched-capacitance device
    • 控制开关电容器件的开关和相应的开关电容器件的过程
    • US06249154B1
    • 2001-06-19
    • US09571392
    • 2000-05-15
    • Pierre-Olivier JouffreIsabelle TelliezFrédéric Paillardet
    • Pierre-Olivier JouffreIsabelle TelliezFrédéric Paillardet
    • G11C2702
    • H03K17/063H03K17/165
    • With a switch including at least one insulated-gate field-effect transistor, an analog input signal is delivered on the source of the transistor and the transistor is controlled on its gate synchronized with a clock signal to successively turn it on and off. On the conclusion of each half-period of the clock signal during which the transistor is off, a precharging capacitor is precharged at the start of the next half-period and for a predetermined precharge duration, with a predetermined precharge voltage. Then, for the remaining duration of the half-period, the precharged capacitor is connected between the source and the gate of the transistor to turn it on under the action of a gate-source voltage which is almost independent of the level of the input signal. At the end of the half-period, the gate of the transistor and the precharging capacitor are grounded.
    • 使用包括至少一个绝缘栅场效应晶体管的开关,在晶体管的源极上传送模拟输入信号,并且在其栅极上控制晶体管与时钟信号同步以连续地打开和关闭。 在晶体管截止的时钟信号的每个半周期的结论处,预充电电容器在下一个半周期的开始和预定的预充电持续时间内以预定的预充电电压进行预充电。 然后,对于半周期的剩余时间,预充电电容器连接在晶体管的源极和栅极之间,以在几乎不依赖于输入信号电平的栅极 - 源极电压的作用下导通 。 在半周期结束时,晶体管的栅极和预充电电容器接地。
    • 2. 发明授权
    • Calibration in a radio frequency transmission module
    • 在射频传输模块中进行校准
    • US08238469B2
    • 2012-08-07
    • US12061088
    • 2008-04-02
    • Pierre BussonIsabelle TelliezFrederic Paillardet
    • Pierre BussonIsabelle TelliezFrederic Paillardet
    • H04L27/00
    • H03D7/166H04L27/38H04L27/3863H04L27/3872
    • A radio frequency transmission module is adapted to generate a first signal to be transmitted and to convert the signal to a radio frequency carrier for its radio transmission, in an operational phase, and is adapted to generate a second signal and to convert the second signal to the radio frequency carrier, in a calibration phase. The module includes a calibration unit having a subsampler adapted to subsample the second converted signal and a calculation unit adapted to calculate Fourier Transform coefficients representative of the signal delivered by the subsampler, for the purposes of processing the first signal to be transmitted, in the operational phase, as a function of at least some of the Fourier coefficients calculated in the calibration phase.
    • 射频传输模块适于产生待发射的第一信号,并在操作阶段将该信号转换成用于其无线电传输的射频载波,并适于产生第二信号并将第二信号转换为 在射频载波中,在校准阶段。 模块包括具有适于对第二转换信号进行二次采样的二次采样器的校准单元,以及计算单元,用于计算代表由二次采样器传送的信号的傅里叶变换系数,以便在操作中处理要发送的第一信号 作为在校准阶段中计算的至少一些傅立叶系数的函数的相位。