What is another word for pulse-time modulation?
Pronunciation: [pˈʌlstˈa͡ɪm mˌɒdjʊlˈe͡ɪʃən] (IPA) 
Pulse-time modulation, commonly abbreviated as PTM, is a technique used in telecommunications and electrical engineering to encode information in a digital signal. Synonyms for PTM include pulse-position modulation (PPM), pulse-duration modulation (PDM), and pulse-width modulation (PWM). PPM is a similar technique to PTM, with the difference being that the amplitude of the pulses remains constant while their position changes. PDM encodes information by varying the duration of the pulses, while PWM varies the width of the pulses. All of these modulation techniques allow for efficient transmission of digital signals in a manner that is easily decoded at the receiving end.
