Circuit arrangement for removing noise from binary signals

摘要

For removing short noise pulses in binary signals, the circuit arrangement uses an integrating section (I) which is charged up with each change in the binary signals, which are present as input signals (E) at the circuit arrangement. A comparator (K) compares the voltages (S2) at the integrating section (I) with a predetermined threshold value (SW) and, when they are equal, generates signals (S3) which switch a flip flop (F) into the opposite position in each case. The signals at the output of the flip flop represent the input signals (E) free of noise pulses. They are output as output signals (A), on the one hand, and, on the other hand, they are supplied to a binary comparator (V) which in each case compares their binary values with the binary values of the input signals (E) and, when they are equal, activates a switch (S) which discharges the integrating section (I). <IMAGE>