Adaptive echo canceller

Details Adaptive echo canceller Adaptive echo canceller

H - Electricity

04

B

340/72

H04B 15/00 (2006.01) H04B 3/23 (2006.01)

Patent

CA 2020804

An adaptive echo canceller for suppressing an echo in an input signal by a pseudo echo, includes a pseudo echo generation filter having a predicted impulse response sequence of an echo path as filter coefficients thereof for generating a pseudo echo, a coefficient renewal part for adaptively renewing the filter coefficients of the pseudo echo generation filter, and a part for suppressing an echo by the pseudo echo which is generated by the pseudo echo generation filter. The coefficient renewal part includes a part for dividing renewed filter coefficients into a plurality of groups each having a certain number of renewed filter coefficients, and a part for successively selecting one group with a-predetermined period and carrying out a correction process with respect to the renewed filter coefficients within the selected group, where the correction process corrects an accumulation of errors of renewal processes.

Affiliated with

Also associated with

Rating

Adaptive echo canceller does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adaptive echo canceller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive echo canceller will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1779311