Method and apparatus for echo canceler disablement

申请公布号：US5014307(A)

申请号：US19890436485

申请日期：1989.11.14

申请公布日期：1991.05.07

申请人：

INTEGRATED NETWORK CORPORATION

发明人：JOFFE, DANIEL M.;EBERLE, JR., CHARLES R.

分类号：H04B3/23

主分类号：H04B3/23

摘要：An echo canceler is disabled by sending two signals to it or in the alternate, by sending a single signal. The two signals are bit shifted replicas of each other. The nature of the sequence of the bits within the signals assures that one of the two signals or in the alternate case, a single signal will disable the echo canceler. All of these signals are not necessarily comprised solely of tone at a predetermined frequency; rather they may merely have sufficient energy at a disabling frequency and sufficient signal noise ratio to disable the echo cancelers.

禁机

帽灯

玩具音乐房子(5025)

发夹

水晶饰物（S型树叶）

台灯（A2445TF5）

水晶饰物（尖珠）

无网豆浆机桶(LC14D)

笔(TC103)

LED灯（ST1219）

CD夹（1）

型材(2.8公分方中横)

笔（2011）

开关(S8261-2)

型材(80BJ04A)

布（59）

床(1)

布（56）

灯（103941）

笔(M0003)