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发明名称
Echoauslöscher mit einem adaptiven digitalen Filter und zugeordneter Delta-Sigma-Modulationsschaltung.
摘要
申请公布号
DE69103977(T2)
申请公布日期
1995.04.13
申请号
DE19916003977T
申请日期
1991.06.20
申请人
NEC CORP., TOKIO/TOKYO, JP
发明人
TAKAHASHI, YUTAKA, MINATO-KU, TOKYO, JP
分类号
H03H21/00;H03H17/00;H03H17/02;H04B3/23;(IPC1-7):H04B3/23;H04B3/20;H03M3/02
主分类号
H03H21/00
代理机构
代理人
主权项
地址
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