Method and apparatus for detecting and indicating packets containing voice activity in the transmission of voice over a packet data network

摘要

A network device includes a receiving device, a detector, and a circuit. The receiving device receives a first signal. The first signal includes first and second packets. The first packets correspond to intervals of the first signal containing voice activity. The second packets correspond to intervals of the first signal not containing voice activity. The detector detects the first packets and generates an indication signal identifying the first packets. The circuit, based on the indication signal, inserts a bit in either each of the first packets and not the second packets or each of the second packets and not the first packets. The bit inserted into each of the first packets or the second packets indicates which of the packets in the first signal correspond to intervals of the first signal containing voice activity.

主权项

1. A network device comprising:
a receiving device configured to receive a first signal, wherein the first signal includes a plurality of packets, wherein the plurality of packets include a plurality of first packets and a plurality of second packets, wherein the plurality of first packets correspond to intervals of the first signal containing voice activity, and wherein the plurality of second packets correspond to intervals of the first signal not containing voice activity; a detector configured to (i) detect the plurality of first packets in the first signal that correspond to the intervals of the first signal containing the voice activity, and (ii) generate an indication signal identifying the plurality of first packets that correspond to the intervals of the first signal containing the voice activity; and a first circuit configured to, based on the indication signal, insert a bit in either (i) each of the plurality of first packets and not the plurality of second packets, or (ii) each of the plurality of second packets and not the plurality of first packets, wherein the bit inserted into each of the plurality of first packets or the plurality of second packets indicates which of the plurality of packets in the first signal correspond to intervals of the first signal containing voice activity.