发明公开
- 专利标题： Echo canceler and echo path estimating method
- 专利标题（中）： 回声消除器和回波路径估测方法
-
申请号： EP01127742.3申请日： 1995-05-02
-
公开(公告)号： EP1202469A2公开(公告)日： 2002-05-02
- 发明人: Kawahara, Toshiro , Miki, Toshio , Suda, Hirohito , Ohya, Tomoyuki , Takagi, Hirofumi
- 申请人： NTT Mobile Communications Network Inc.
- 申请人地址： 11-1, Nagatacho 2-chome, Chiyoda-ku Tokyo 100-6150 JP
- 专利权人： NTT Mobile Communications Network Inc.
- 当前专利权人： NTT Mobile Communications Network Inc.
- 当前专利权人地址： 11-1, Nagatacho 2-chome, Chiyoda-ku Tokyo 100-6150 JP
- 代理机构： Winter, Brandl, Fürniss, Hübner, Röss, Kaiser, Polte Partnerschaft
- 优先权： JP11764094 19940506; JP11758994 19940507; JP11759094 19940507; JP11759294 19940507; JP11759394 19940507
- 主分类号： H04B3/23
- IPC分类号： H04B3/23
摘要：
The present invention relates to an echo canceller using an up-sampler (32) to increase the sampling rate of the transmit signal (Rin) and another up-sampler (33) to increase the sampling rate of the receive signal (Sin). The sampling rate of the echo replica signal outputted from the echo path estimation circuit (3) is reduced by a down-sampler (34).
公开/授权文献
- EP1202469B1 Echo canceler and echo path estimating method 公开/授权日：2004-08-11
信息查询
