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发明名称
ECHO CANCELLER
摘要
申请公布号
JPH0774681(A)
申请公布日期
1995.03.17
申请号
JP19930217183
申请日期
1993.09.01
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
MORIYA TAKEHIRO;SHIMADA MASAHARU;MAKINO SHOJI;KANEDA YUTAKA
分类号
H04B3/23;(IPC1-7):H04B3/23
主分类号
H04B3/23
代理机构
代理人
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