| 摘要 |
<p>1 PHF. 79-503. A low-pass filter for low frequency signals having first portions situated above on one side and second portions situated on the other side of an average value. The filter comprises at least two integrators, each comprising a capacitor, included between the input and the output of a voltage-inverting amplifier and a current source connected to said output, and three threshold comparators, of which the first one is connected to the input of the filter, of which the second one is included after the first integrator, and of which the third one is connected to the output of the filter. The arrangement can be used in logic circuitry, wherein it prevents that spurious signals can affect the signal waveform used for the logic circuit.</p> |
