Communication device having relaying and switching function
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United States of America Patent
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Apr 5, 1994
Grant Date -
N/A
app pub date -
Apr 6, 1992
filing date -
Aug 6, 1990
priority date (Note) -
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status (Latency Note)
Importance
Abstract
In a communication device having a transmission device connected to first and second transmission paths, and an exchange connected to the transmission device, the transmission device includes a codec and a switching part. When a speech signal received from the first transmission path terminates at a terminal accommodated in the exchange, the speech signal having a low bit rate is converted, by the codec, into a bit rate which can be processed by the exchange, and then sent to the exchange. Meanwhile, when the speech signal received from the first transmission path is relayed to the second transmission path, the speech signal having the low bit rate is sent to the second transmission path via the switching part without passing it through the codec while the bit rate of the speech signal is maintained.
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