Audio distributing system

Details Audio distributing system Audio distributing system

H - Electricity

04

M

379/3, 179/4

H04M 11/00 (2006.01) H04M 3/428 (2006.01) H04H 1/02 (2006.01)

Patent

CA 1189646

TITLE AUDIO DISTRIBUTING SYSTEM ABSTRACT OF THE INVENTION A system for distributing signals from an audio source to key telephone station instruments is disclosed. By controlling the impedance relation- ship between the station instruments, lines and am- plifier output, cross-feeding of signals from one station instrument to another or back-feeding of signals to the audio source is prevented.

417447

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