ECHO CANCELER HAVING ADAPTIVE DIGITAL FILTER UNIT ASSOCIATED WITH DELTA-SIGMA MODULATION CIRCUIT,申请号US19910720321-传众专利搜索

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发明名称	ECHO CANCELER HAVING ADAPTIVE DIGITAL FILTER UNIT ASSOCIATED WITH DELTA-SIGMA MODULATION CIRCUIT
摘要
申请公布号	US5222084(A)	申请公布日期	1993.06.22
申请号	US19910720321	申请日期	1991.06.25
申请人	NEC CORPORATION	发明人	TAKAHASHI, YUTAKA
分类号	H03H21/00;H03H17/00;H03H17/02;H04B3/23	主分类号	H03H21/00
代理机构		代理人
主权项
地址

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