Echo canceler with high-pass filter

Details Echo canceler with high-pass filter Echo canceler with high-pass filter

H - Electricity

04

B

379/64, 340/72

H04B 15/00 (2006.01) H04B 3/23 (2006.01) H04L 5/14 (2006.01)

Patent

CA 1152595

1~ 344a A8S s ho a~a~l~r ~or ~ ln~y~t~, cQæ3px~ two an~ ~our wlr~ ~onn~3c~ n~ an~ ~an~d ~v 5U~Ye~l~ echo siynal~ ~:?CCUXr~ng :In th~ oux~ wire co~inec:t~on. Thlsa ~oSIo c~ lu~ ?r~ h ad~u:~tabl~ si~ l proc~ n~ c~vla~3 ~o wh;~ch t~ da~e~ ~l~na~ to ~ t~c~n~tt~d ~8 ~t~pli~i!d ~ ~hlch ~7r~luc~ 3ynt~ 3t~ U ~lgnal. ~ ~l~nal or~d ~ ~ r~iv~d d~:a ~l~n~l ~d 2~n ~ o ~ 3n~ ~ t ~l~ r~c~iv~ path of ~h~ ~o~x~ c~m~ct~on . ~ th¢ th~ r~:e31~E3 path ~har~ SIOW ~ubtr~:'c~ th~ ~yn~h~ a ~cho si~n~l, in ~r to gf3n~r~k~ ~ r~ ls~nal~ ad~u~ al pr~cassiis(3 d2~ric~ R:IL a~ ~u~tln~ a~lc~ 1~ co.~act.~ th~r~to to uhl~h ~ di~Jlt~l cor~t~col ~lgnal 1~ appl~d, ~lch 1~ ~n~ tetd by ~ diglt~ v~ 10l3 o~ r~ ual ~i~Jr~ In ~X~ rc~ o~ the xe~sls3u~ nal whlch 1~ ob~ln~ w~ d~ 31~a~ ~o 3~ Qd COS~I~~ lony ~aln~ ~e 'ch~ 93}11B ty~ he r~#ldua) ~iy~al ;1~ 9~;~o¢4 to ~ h-pa~s ~ ia~ o~ra~ior~ ~d -~h~ diq~aï ~er~o~ o~ the~ x~ ual slgnal ~it ~r~d thu~ la ap~ to thæ ~u~n~ de~Yi~ ~s ~h~ ~n~rol ~k3nal.

351523

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