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发明名称
DETECTION OF DTMF SIGNAL
摘要
申请公布号
JPH0787532(A)
申请公布日期
1995.03.31
申请号
JP19930230262
申请日期
1993.09.16
申请人
JAPAN RADIO CO LTD
发明人
OSAWA HIDEO;NAGAYASU MASATOSHI;ARAKAWA TETSUO
分类号
H04M11/00;H04Q1/45;(IPC1-7):H04Q1/45
主分类号
H04M11/00
代理机构
代理人
主权项
地址
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