Voice and data multiplexer system
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United States of America Patent
Stats
-
Feb 28, 1989
Grant Date -
N/A
app pub date -
Nov 13, 1987
filing date -
Nov 14, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system in which two stations are respectively provided with telephones and data terminals such that a voice and data are multiplexed for communication between the two stations. Each station has a circuit to convert voice signals inputted from the telephone into a plurality of kinds of predetermined voice parameters, a circuit to determine a transmission mode depending on a predetermined parameter of the voice signals, a circuit to extract data having a length corresponding to the transmission mode from data to be transmitted from the data terminal, a circuit to select one of the plurality of voice parameters depending on the transmission mode, and a unit to edit a mode indicator indicating the transmission mode, the selected voice parameter, and the extracted data into a transmission block format corresponding to the transmission mode. The transmission block includes only voice information containing all voice parameters in the first mode; voice information and data information in the second mode, and voice information containing the minimum voice parameters and data information in the third mode.
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