Echo phase compensating device and application thereof to...

Details Echo phase compensating device and application thereof to... Echo phase compensating device and application thereof to...

H - Electricity

04

B

340/72

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

Patent

CA 1194953

ABSTRACT OF THE DISCLOSURE The present invention relates to the simul- taneous two-way data transmission on 2-wire circuit, and more particularly to the technique of echo cancel- lation. The rapid fluctuations wn are actualized with a first phase actualization loop, and the slow fluctua- tions un with a second phase actualization loop, from the increase dwn = .alpha.Im (en.sigma.n*); un and wn are added for obtaining the natural phase .sigma.n of the echo. The invention applies to the cancellation of echos bearing phase and frequency drift.

406048

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