| 摘要 |
The circuit has a transmission function between the signal input (1) and the signal output (15) defined by an equation in terms of a first filter function with a highpass characteristic of second order, or a lowpass characteristic of second order and a second filter function with a bandpass characteristic of second order. The first stage (2) of the circuit has a number of parallel signal paths for the input signal, with different weighting or filter functions, their outputs combined by a summator (3) and fed to a second stage (14), similarly having parallel signal paths and an output summator, coupled to the signal output. <IMAGE> |
