发明名称 Switching arrangement for a telephone system for connecting a calling subscriber set to an idle connector set upon recognizing a loop in the connector set
摘要 A switching arrangement for a telephone system, wherein a subscriber circuit is connected over crosspoints of corresponding switching matrix stages to a junctor circuit feeding said subscriber circuit and receiving the signals thereof, wherein a common link-selecting and marking unit controls the switching of transmission paths as required by a common central control unit, and wherein a subscriber and junctor busy/free marking store marks an available junctor circuit.
申请公布号 US4079206(A) 申请公布日期 1978.03.14
申请号 US19760692992 申请日期 1976.06.04
申请人 SIEMENS AKTIENGESELLSCHAFT 发明人 FRANCHI, BRUNO;KOFLER, CHRISTIAN
分类号 H04Q3/52;(IPC1-7):H04Q3/52 主分类号 H04Q3/52
代理机构 代理人
主权项
地址