Title :
Multifrequency pulsing in switching
Author :
Dahlbom, C. A. ; Horton, A. W. ; Moody, D. L.
Author_Institution :
Bell Telephone Laboratories, Inc., New York. N. Y.
fDate :
6/1/1949 12:00:00 AM
Abstract :
Applications of multifrequency pulsing in switching are described in this article. Today, many installations of this type are being made in cities throughout the nation. This system permits operators or senders to complete calls to crossbar offices without the aid of other operators.
Keywords :
Band pass filters; Oscillators; Receivers; Relays; Switches; Transient analysis; Windings;
Journal_Title :
Electrical Engineering
DOI :
10.1109/EE.1949.6444822
