Transmission method for transmitting voice and data information over telephone line and device for implementing said method
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United States of America Patent
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-
Oct 23, 1984
Grant Date -
N/A
app pub date -
Jul 19, 1982
filing date -
Jul 28, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Family
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Cited Art Landscape
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