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发明名称
用户分机
摘要
一种由电子电路、喇叭、送话器、受话器及接键组成的楼宇对讲系统的用户分机,采用传声器作送话器、采用喇叭作呼叫喇叭兼作受话器取代手柄式送、受话组件,以电子电路实现自动摘机取代人工摘机,使用方便了,用户分机相互间隔离性能好了,用户分机一体化的结构形式取消了重力开关和活动的连接软线使故障少了,节省材料成本降低了。
申请公布号
CN2327123Y
申请公布日期
1999.06.30
申请号
CN97240404.X
申请日期
1997.07.28
申请人
罗宏基
发明人
罗宏基
分类号
H04M9/04
主分类号
H04M9/04
代理机构
代理人
主权项
1.一种由电子电路、喇叭、送话器、受话器及按键组成的楼宇对讲系统的用户分机,其特征是:用户分机为一体化结构,一体化用户分机盒内有传声器(QBn)、喇叭(SPBn)及开关管(TBn2),传声器(QBn)与前置放大(AMn)的输入端连接成为前置放大(AMn)的输入信号源,喇叭(SPBn)与开关管(TBn2)串联连接构成串联支路,该串联支路与楼宇对讲系统主机的功放电路(POW1)的输出端连接成为功放电路(POW1)的负载。
地址
510095广东省广州市麓湖路三号船舶设计院
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