Patent ID: 11888545
Assignee: CABLE TELEVISION LABORIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 16:
17. A method for echo cancellation in a communication network, the method comprising:
estimating an echo anticipated to occur within the communication network for a first signal, based on a second signal within a digital domain of the communication network;
generating a cancellation for the echo;
applying the cancellation to a reflection of the first signal, in an analog domain of the communication network;
performing digital-to-analog (D-A) conversion of the second signal to the first signal; and
transporting the first signal from a first D-A converter performing the D-A conversion of the second signal to the first signal to a modem downstream of the first D-A converter, without amplification along a signaling path defined therebetween, the reflection occurring within the signaling path.