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发明名称
ECHO CANCELLER
摘要
申请公布号
EP0371567(A3)
申请公布日期
1992.05.20
申请号
EP19890203028
申请日期
1989.11.29
申请人
PHILIPS PATENTVERWALTUNG GMBH;N.V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
BROX, WOLFGANG;VARY, PETER, DR.-ING.
分类号
H03H17/00;H03H21/00;H04B3/23;H04M9/08;(IPC1-7):H04B3/23
主分类号
H03H17/00
代理机构
代理人
主权项
地址
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