In signal processing, the term pulse has the following meanings: Signal processing is the processing, amplification and interpretation of signals. ...

1. A rapid, transient change in the amplitude of a signal from a baseline value to a higher or lower value, followed by a rapid return to the baseline value.
2. A rapid change in some characteristic of a signal, e.g., phase or frequency, from a baseline value to a higher or lower value, followed by a rapid return to the baseline value.
3. In telephony, pulse dialing is a way of dialing a telephone number using interrupted electrical pulses (see rotary dial).

Original source: from Federal Standard 1037C and from MIL-STD-188 Signaling, or signal, may mean: Look up signal on Wiktionary, the free dictionary. ... Waves with the same phase Waves with different phases The phase of a wave relates the position of a feature, typically a peak or a trough of the waveform, to that same feature in another part of the waveform (or, which amounts to the same, on a second waveform). ... Sine waves of various frequencies; the lower waves have higher frequencies than those above. ... A telephone handset A touch-tone telephone dial Telephone The telephone or phone (Greek: tele = far away and phone = voice) is a telecommunications device that transmits speech by means of electric signals. ... Pulse dialing or loop disconnect dialing, also called Rotary or Decadic dialing in the United Kingdom (because up to 10 pulses are sent), is pulsing in which a direct-current pulse train is produced by interrupting a steady signal according to a fixed or formatted code for each digit and... The rotary dial is a device mounted on or in a telephone or switchboard that is designed to send interrupted electrical pulses, known as pulse dialing, corresponding to the number dialled. ... Federal Standard 1037C entitled Telecommunications: Glossary of Telecommunication Terms is a U.S. Federal Standard, issued by the General Services Administration pursuant to the Federal Property and Administrative Services Act of 1949, as amended. ... MIL-STD-188 is a series of U.S. military standards relating to telecommunications. ...

See also: Pulse forming network A Pulse forming network (PFN) converts direct current or alternating current to continous directional square pulses at high energy levels of high frequency. ...