Non-linear signal processor
A nonlinear and processor technology, applied in the field of signal processing systems that process signals nonlinearly, can solve problems such as power supply voltage difference and ground potential difference
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[0020] The present invention is described below in the context of an exemplary embodiment comprising a television signal processing system. However, the invention can be applied to other types of signal processing systems.
[0021] A signal processing system such as a television signal processing system typically includes means for amplifying a voltage signal, for example, either a demodulated luminance signal or a component color signal. It is often desirable to provide the amplifier with non-linear gain characteristics. Such as figure 1 As shown, this is often the case, ie, using a differential amplifier 10 where one input 12 to the amplifier 10 contains the desired time-varying signal and the other input 14 provides a common mode bias for the amplifier 10 . It is also common for time-varying common mode components to be present on each of the two input signals. exist figure 1 A common mode bias 14 is applied to the base of transistor 16 in the circuit of , and a time-va...
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