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    • 35. 发明公开
    • Analog Divider Circuit and Method
    • 分析Teilerschaltung和Vefahren dazu
    • EP1450289A1
    • 2004-08-25
    • EP03018878.3
    • 2003-08-19
    • Agilent Technologies, Inc.
    • Karlquist, Richard K.
    • G06G7/16
    • G06G7/16
    • There is disclosed a computation circuit (10), working in the modulation domain to generate a signal having phase modulation proportional to the ratio of the dividend (numerator) signal to the divisor (denominator) signal. In one embodiment, the phase modulated signal is demodulated by a phase demodulator (104) to produce a baseband quotient signal. The divisor signal maintains inverse proportional control of the modulation gain of the modulator by varying the carrier injection level, resulting in higher bandwidth and accuracy, and lower drift and offset compared to traditional analog computation techniques. In one embodiment the circuit contains all linear components, even though the division function is a non-linear function. The circuit and method operate when the input signals are analog or one or both are in the modulation domain.
    • 公开了一种在调制域中工作的计算电路(10),以产生具有与分红(分子)信号与除数(分母)信号的比率成比例的相位调制的信号。 在一个实施例中,相位调制信号由相位解调器(104)解调以产生基带商信号。 除数信号通过改变载波注入电平来维持调制器的调制增益的反比例控制,导致与传统模拟计算技术相比更高的带宽和精度以及更低的漂移和偏移。 在一个实施例中,电路包含所有线性分量,即使分割函数是非线性函数。 当输入信号为模拟信号或者一个或两个处于调制域时,该电路和方法工作。