Pulse Code Modulation (PCM) is a method used to digitally represent analog signals. It involves sampling the analog signal at regular intervals, quantizing each sample into a digital value, and then ...

Abstract: In this paper, to improve the data transmission rate, visible light communication (VLC) system based on multi-level pulse code modulation (MPCM) is considered. This system uses different ...

This report describes a series of subjective tests made to discover whether instantaneous companding could profitably be applied to a pulse-code-modulation system designed for high quality sound ...

Pulse Modulation types: • Analog: sample amplitude is the variable. • Digital: information is a code. Pulse Position Modulation (PPM): A method of Pulse Time Modulation PPM: • Generated by changing ...

A digital multifrequency (MF) tone-generating system for a pulse-code-modulation (PCM) time-division multiplexed (TDM) exchange has been developed as well as the tone injection system necessary for ...

Pulse-density modulation control of chemical oscillation far from equilibrium in a droplet open-reactor system. Nat. Commun. 7:10212 doi: 10.1038/ncomms10212 (2016).