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Ringing control system

阅读:711发布:2021-08-02

专利汇可以提供Ringing control system专利检索,专利查询,专利分析的服务。并且PURPOSE:To connect >=2 kinds of ringers without altering the hardware of a microprocessor, by receiving a control signal from a ringer at a selector temporarily, and outputting the result in a multiple connection. CONSTITUTION:The ringer control signal from the ringer 1 is decomposed in the selector 5 into a corresponding number specifying outputs 7-9 for turning on and off of ringing and an output 10 for resetting a counter. The microprocessor 15 discriminates in color the party of a subscriber by reading the contents of a subscriber memory in an RAM to judge which of the outputs of selectors 5 and 6 is to be sent out, sending a color discriminated signal to a controller 16. Then, the signal is judged and when the signal shows a multiparty mode, the output gate of the selector 6 is opened to send out control signals 11-14. When this gate is opened, the processor 15 reads a control signal from a ringer 2 to send a ringing signal to the subscriber through a bus controller 20. This state is recorded in the memory in the processor 15.,下面是Ringing control system专利的具体信息内容。

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