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发明名称
ECHO CANCELLER
摘要
申请公布号
JPH09307482(A)
申请公布日期
1997.11.28
申请号
JP19960139789
申请日期
1996.05.10
申请人
IWATSU ELECTRIC CO LTD;NIPPON TELEGR & TELEPH CORP <NTT>
发明人
KIKUCHI KATSUMI;SHIMAUCHI SUEHIRO;HANEDA YOICHI;MAKINO SHOJI;KOJIMA JUNJI
分类号
H04B3/23;H04M1/60;(IPC1-7):H04B3/23
主分类号
H04B3/23
代理机构
代理人
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