Gateway with voice
AssigneeBroadcom Corporation
InventorsTheodore F. Rabenko, David Hartman, James C. H. Thi
Life of this patent
Estimating the term…
Abstract
In one aspect of the present invention, a network gateway is configured to facilitate on line and off line bi-directional communication between a number of near end data and telephony devices with far end data termination devices via a hybrid fiber coaxial network and a cable modem termination system. The described network gateway combines a QAM receiver, a transmitter, a DOCSIS MAC, a CPU, a voice and audio processor, an Ethernet MAC, and a USB controller to provide high performance and robust operation.
Claims25
A cable modem, comprising:
- a network port to interface with a cable head end;
- a telephony port to interface with a telephony device;
- a data port to interface with a data terminal;
- a processor coupled to each of the ports;
- and
- an echo canceller adapted to cancel a cable head end echo on voice signal flowing from the telephony device to the cable head end.
A gateway, comprising:
- a network port to interface with a cable head end;
- a telephony port to interface to a telephony device;
- a data port to interface to a data terminal;
- a processor coupled to each of the ports;
- a transceiver disposed between the processor and the network port, the transceiver being capable of transmitting and receiving packets of voice signals, packets of data signals, and a television signal;
- and
- an echo canceller adapted to cancel a cable head end echo on a voice signal flowing from the telephony device to the cable head end.
A method of processing signals, comprising:
- exchanging voice signals between a cable head end and a telephony device, wherein the voice exchange comprises canceling a cable head end echo on a telephony signal flowing from the telephony device to the cable head end;
- exchanging data signals between the cable head end and a data terminal;
- and
- receiving a television signal from the cable head end.
Dependencies are inferred from the claim text.