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发明名称
A WIRELESS HEADSET WITH VOICE ANNOUNCEMENT MEANS
摘要
申请公布号
EP2294801(A1)
申请公布日期
2011.03.16
申请号
EP20080758214
申请日期
2008.06.04
申请人
GN NETCOM A/S
发明人
ESPERSEN, DANIEL POSTBORG;GOLDMAN, TOMASZ
分类号
H04M1/60;H04B1/38
主分类号
H04M1/60
代理机构
代理人
主权项
地址
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Container
Frequency-voltage conversion circuit, delay amount judgement circuit, system having frequency-voltage conversion circuit, method of adjusting input/output characterictics of frequency-voltage conversion circuit, and apparatus for automatically adjusting input/output characteristics of
