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From phase simulation supervisory alarm manner and clock synchronization manner and the data transmission equipment null phase simulation generator in the clock supervisory alarm functional attaching phase simulation generator,
From phase simulation supervisory alarm manner and clock synchronization manner and the data transmission equipment null phase simulation generator in the clock supervisory alarm functional attaching phase simulation generator,
PROBLEM TO BE SOLVED: To display an alarm for the first time if loss of phase synchronism is detected for more than a prescribed time, and to securely detect an erroneous normal state. ;SOLUTION: When a window pulse WP with the rise time as a center position is generated from an output clock 104 from a phase synchronizing oscillator 20 and the detection state of the absence of WP continues for more than a prescribed time in F/F 31 at the rise time of an outer input clock 103, this state is kept in an alarm holding circuit 60 through an alarm protection circuit 40 and an alarm is displayed to outside for the first time. The alarm display is kept unless it is released by a reset signal 112.;COPYRIGHT: (C)1998,JPO
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机译：解决的问题：如果在超过规定的时间内检测到相位同步丢失，则第一次显示警报，并安全地检测到错误的正常状态。 ;解决方案：当从相位同步振荡器20的输出时钟104产生以上升时间为中心位置的窗口脉冲WP并且在F / F 31中WP缺失的检测状态持续超过规定时间时在外部输入时钟103的上升时间，该状态通过警报保护电路40保持在警报保持电路60中，并且第一次向外部显示警报。除非通过复位信号112解除警报显示，否则将保留警报显示。版权所有：（C）1998，JPO
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