Transmission method for transmitting voice and data information

Details Transmission method for transmitting voice and data information Transmission method for transmitting voice and data information

1982-07-19

1984-10-23

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

3701101, H04J 300

Patent

active

044792131

ABSTRACT:
The method allows voice and data information to be concentrated over a reduced number of telephone lines. It consists mainly in processing each voice signal to extract therefrom a so-called analog base band signal and digitally coded characteristic parameters. Said parameters are then multiplexed with pure data and submitted to a modulation operation. The analog signal resulting from the modulation is then added to the base band before being transmitted over a telephone line.

REFERENCES:
patent: 3991277 (1976-11-01), Hirata

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