| 摘要 |
<p>PURPOSE:To enable all clock devices in a system to indicate the same time, by a method wherein their respective operation clocks, which are brought to a safe synchronism in a second unit, are fed from the outside to a plural number of clock devices being different in the operation clock. CONSTITUTION:Operation clocks 6 and 7 are supplied from an operation clock generating circuit 1 to an armoring display clock device 2 and a packaged clock 3, respectively, which are positioned in a system. The circuit 1 just feeds their respective clocks 6 and 7, a control table 4 initially sets a time at the clock device 2 and the clock 3, and a duplex system or more is needed to be set at each system. Thereby, the operation clocks 6 and 7 are separated at each system, and in case a set error in time between the systems is produced, regulation can be conducted through the operation of a first switch and a slow switch by means of a microregulating switch with which the circuit 1 is provided. The clock device 2 and the clock 3 can be regulated simultaneously and at the same ratio.</p> |
