Impulsslainekuju koosneb kahest üleminekust ja kahest olekust. Teise võimalusena võib impulsslainekuju kirjeldada liitlainekujuna, mis koosneb positiivse (negatiivse) astmelise lainekuju ja viivitatud negatiivse (positiivse) astmelise lainekuju summast, millel mõlemal on sama lainekuju amplituud.
A pulse waveform consists of two transitions and two states. Alternative, a pulse waveform can be described as a compond waveform consisting of tghe sum of a positive (negative) step-like waveform and a delayed negative (positive) step-like waveform both having the same unsigned waveform amplitude.
Leading edge and trailing edge are deprecated because the word edge describes the property of a geometric figure, which is not contained by or representative of the physical signal that corresponds to the waveform and the terms first and second adequately and unambiguously describe the meanings of leading and trailing.
