Initialization device for echo cancelling device and...

Details Initialization device for echo cancelling device and... Initialization device for echo cancelling device and...

H - Electricity

04

B

340/72

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

Patent

CA 1208733

Initialization device for echo cancelling device and application thereof to remote echos. ABSTRACT OF THE DISCLOSURE The present invention relates to echo cancelling techniques and more particularly to an initialization device for echo cancelling system. The invention consists in converting a pseudo-random sequence {uk} of length N into a sequence of samples {ek} such that each sample ek is deduc- ted from uk by ek = 2 uk-1, in multiplying each sample u(N-M+1+k)mod N with the sample sN+k obtained at reception an in adding the results for all the k's between 0 and N-1. The result at instant kT, to within a multiplicative cons- tant, of saif additions is then HM(k), one of the N coeffi- cients at the initial conditions of said echo cancelling device, M being between 0 and N, and k varying from 0 to N-1, with HM (k) = HM (k-1) + sN+k? u(N+k+1-M)mod N. The invention is applicable to the pulse response of any signal.

417032

Affiliated with

Also associated with

Rating

Initialization device for echo cancelling device and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1219498