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Control system

阅读:294发布:2022-11-06

专利汇可以提供Control system专利检索,专利查询,专利分析的服务。并且PURPOSE:To reduce the queuing time for the data transmitted from a terminal device, by providing a data transmission request line and a data transmission permission line between a scanner and each terminal device and using a special control sequence for these lines. CONSTITUTION:A scanning circuit SCNC16 detects the data transmission request signal sent from e.g. a terminal device TRM30 and immediately stops the scanning action temporarily to actuate a transmission/reception level converting circuit 18'. In such active mode, the data communication lines 72 and 73 of the TRM30 that accepted a transmission request are connected logically to a transmission procedure control circuit LSI13 via a bus 17. At the same time, a state is set under which a data transmission permission signal can be transmitted to a data transmission permission line ENB71. As a result, the circuits 72 and 73 of the TRM30 are connected to the data communication circuits of the upper devices to set up an interface between an upper device and the TRM30.,下面是Control system专利的具体信息内容。

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