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发明名称
Measuring speech quality
摘要
申请公布号
EP1267555(A3)
申请公布日期
2004.10.13
申请号
EP20020253977
申请日期
2002.06.07
申请人
NORTEL NETWORKS LIMITED
发明人
KEANE, MICHAEL;MORAN, THOMAS
分类号
H04M3/22;H04M7/00;(IPC1-7):H04M3/22;H04B17/00;H04L12/26;H04M3/26
主分类号
H04M3/22
代理机构
代理人
主权项
地址
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