The Hysteresis phenomenon in Schmitt trigger has the following features:
(1) It is due to negative feedback
(2) Speed of response is achieved
(3) In the inverted mode, the circuit triggers at a higher voltage for increasing signals than for decreasing signals
(4) Noise signal voltage greater than V_H are cut off, where V_H is the hysteresis voltage
(5) Slowly varying signals are converted to output waveform with abrupt changes at two specified level of input signals
Of these five statements, the true statements are: