Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal
Patent
1996-05-10
1998-12-08
Hunter, Daniel S.
Telephonic communications
Substation or terminal circuitry
For loudspeaking terminal
379388, 379406, 379410, 379420, 381111, 381119, H04M 908
Patent
active
058481460
ABSTRACT:
A multiport bridge controlled by the intelligence of a programmed microcontroller selectively channels audio from a plurality of input ports to a plurality of output ports including a room program output. Coupled to one of the bridge input ports is at least one gated microphone mixer, including multiple microphone channels and an acoustical echo canceller. Expandability is provided by a second, third or up to n microphone mixers each having a separate echo canceller for the associated group of microphone inputs.
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Hunter Daniel S.
Rane Corporation
Saint-Surin Jacques M.
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