Voice activated data rate change in simultaneous voice and...

Details Voice activated data rate change in simultaneous voice and... Voice activated data rate change in simultaneous voice and...

H - Electricity

04

M

H04M 11/06 (2006.01) H04L 1/00 (2006.01) H04L 27/34 (2006.01)

Patent

CA 2132643

- 20 - Voice Activated Data Rate Change in Simultaneous Voice and Data Transmission Abstract A simultaneous voice and data modem performs "voice-activated" data rate changes to improve the transmission quality of the voice signal. In particular, when the simultaneous voice and data modem detects that a local telephone set has gone "off-hook," the simultaneous voice and data modem selects a signal space with a lower symbol density, which, although resulting in fewer bits per symbol, provides for a higher quality voice transmission.

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