Author :
Black, H. S. ; Edson, J. O.
Author_Institution :
Bell Telephone Laboratories, Inc., New York, N. Y.
Abstract :
PCM, pulse code modulation, is a new solution to the problem of overcrowded frequency spectrum. It appears to have exceptional possibilities from the standpoint of freedom from interference, and seems to have inherent advantages over other types of multiplexing.
Keywords :
Capacitors; Electron tubes; Logic gates; Oscillators; Phase change materials; Radiation detectors; Wiring;
Journal_Title :
Electrical Engineering
DOI :
10.1109/EE.1947.6443834
