Echo cancellation in multiple port Full Duplex (FDX) nodes and amplifiers may be provided. First, a plurality of signals may be provided to a cancelation device. Each of the plurality of signals may be configured to provide the cancelation device with a corresponding plurality of configurations. Next, a plurality of effective echo power values respectively corresponding to the plurality of configurations may be received. A one of the plurality of configurations corresponding to a lowest of the plurality of effective echo power values may then be selected. The cancelation device may then be operated at the selected one of the plurality of configurations.

Techniques to dynamically engage echo cancellation are described. In one embodiment, an apparatus may comprise a streaming component operative to establish a audio connection between the first client device and a second client device via the network interface controller; and receive a far-end audio stream at the first client device from the second client device via the audio connection; an audio capture component operative to capture a near-end audio stream at the first client device; and an echo processing component operative to compare the near-end audio stream and the far-end audio stream to determine whether a far-end echo is present in the near-end audio stream; and use an echo-cancellation module at the first client device where the far-end echo is present in the near-end audio stream. Other embodiments are described and claimed.

Echo cancellation in multiple port Full Duplex (FDX) nodes and amplifiers may be provided. First, a plurality of signals may be provided to a cancelation device. Each of the plurality of signals may be configured to provide the cancelation device with a corresponding plurality of configurations. Next, a plurality of effective echo power values respectively corresponding to the plurality of configurations may be received. A one of the plurality of configurations corresponding to a lowest of the plurality of effective echo power values may then be selected. The cancelation device may then be operated at the selected one of the plurality of configurations.

Proactive Echo Cancellation (EC) training may be provided. First, a plurality of Echo Cancellation Training Opportunities (ECTOs) may be identified in an upstream bandwidth allocation. Identifying the ECTOs may comprise identifying a corresponding plurality of mini-slots in a two dimensional time frequency space designated as not to be used for Upstream (US) traffic. Then Echo Cancellation Training (ECT) may be conducted for each of the plurality of ECTOs.

Proactive Echo Cancellation (EC) training may be provided. First, a plurality of Echo Cancelation Training Opportunities (ECTOs) may be identified in an upstream bandwidth allocation. Identifying the ECTOs may comprise identifying a corresponding plurality of mini-slots in a two dimensional time frequency space designated as not to be used for Upstream (US) traffic. Then Echo Cancelation Training (ECT) may be conducted for each of the plurality of ECTOs.

A cable modem comprises transceiver circuitry and echo cancellation training circuitry. The transceiver circuitry may be operable to transmit and receive signals on a full-duplex Data Over Cable System Interface Specification (DOCSIS) network. The echo cancellation training circuitry may be operable to: determine an echo cancellation training group to which the electronic communication device belongs; determine one or more training periods during which the echo cancellation training group is permitted to transmit training signals; and transmit an echo cancellation training signal during the determined training one or more periods and use the transmitted training signal to train echo cancellation circuitry of the cable modem.

A cable modem comprises transceiver circuitry and echo cancellation training circuitry. The transceiver circuitry may be operable to transmit and receive signals on a full-duplex Data Over Cable System Interface Specification (DOCSIS) network. The echo cancellation training circuitry may be operable to: determine an echo cancellation training group to which the electronic communication device belongs; determine one or more training periods during which the echo cancellation training group is permitted to transmit training signals; and transmit an echo cancellation training signal during the determined training one or more periods and use the transmitted training signal to train echo cancellation circuitry of the cable modem.

Techniques to dynamically engage echo cancellation are described. In one embodiment, an apparatus may comprise a streaming component operative to establish a audio connection between the first client device and a second client device via the network interface controller; and receive a far-end audio stream at the first client device from the second client device via the audio connection; an audio capture component operative to capture a near-end audio stream at the first client device; and an echo processing component operative to compare the near-end audio stream and the far-end audio stream to determine whether a far-end echo is present in the near-end audio stream; and use an echo-cancellation module at the first client device where the far-end echo is present in the near-end audio stream. Other embodiments are described and claimed.

An in-vehicle Ethernet network for data communication within a vehicle, includes a plurality of cables, a first Ethernet transceiver and a second Ethernet transceiver. The plurality of cables includes at least a first cable having a first length, and a second cable having a second length shorter than the first length. The first Ethernet transceiver is coupled to the longer cable and is configured to communicate first symbols over the longer cable at a first baud rate that is commensurate with the first cable length. The second Ethernet transceiver is coupled to the shorter cable and is configured to communicate second symbols over the shorter cable at a second baud rate that is commensurate with the second cable length and lower than the first baud rate.

Techniques to dynamically engage echo cancellation are described. In one embodiment, an apparatus may comprise a streaming component operative to establish a audio connection between the first client device and a second client device via the network interface controller; and receive a far-end audio stream at the first client device from the second client device via the audio connection; an audio capture component operative to capture a near-end audio stream at the first client device; and an echo processing component operative to compare the near-end audio stream and the far-end audio stream to determine whether a far-end echo is present in the near-end audio stream; and use an echo-cancellation module at the first client device where the far-end echo is present in the near-end audio stream. Other embodiments are described and claimed.