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发明名称
ECHO CANCELER
摘要
申请公布号
JPH02146827(A)
申请公布日期
1990.06.06
申请号
JP19880301341
申请日期
1988.11.28
申请人
NEC CORP
发明人
KAMIMURA NAOHISA;ITO HIDENORI
分类号
H04B3/23;H04B7/015
主分类号
H04B3/23
代理机构
代理人
主权项
地址
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