Multiplexing speech signals

Details Multiplexing speech signals Multiplexing speech signals

1978-03-14

1980-10-21

Morrison, Malcolm A.

Multiplex communications

Wide area network

Packet switching

179 1555R, H04B 166

Patent

active

042296226

ABSTRACT:
To transmit a number of individual speech channels over a smaller number of transmission channels, the frequency range of each speech channel is broken into sub-channels and each of these is considered separately for operational activity. Composite speech signals are then formed from the active frequency sub-channels of the individual speech channels and these are transmitted with coding signals indicative of their composition.

REFERENCES:
patent: 2388001 (1945-10-01), Loughren
patent: 2564419 (1951-08-01), Brown
patent: 3030450 (1962-04-01), Schroeder
patent: 3424869 (1969-01-01), Anderson et al.
patent: 4032719 (1977-06-01), Blasbalg
patent: 4100377 (1978-07-01), Flanagan
patent: 4131765 (1978-12-01), Kahn

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