| 摘要 |
PURPOSE:To enable the controlling and displaying of the conventional timer circuit synchronizing standard time, namely, in real time, by demodulating and detecting a time data. CONSTITUTION:A time data modulator 2 modulates a real time data to a normal AC power source to be inputted into an equipment through an AC power source cord 4. The equipment produces a voltage source for use therewithin with a main power source circuit 6 while producing a reference synchronization clock with a power source synchronization circuit 5. A time data demodulator 7 demodulates the real time data modulated to the AC power source to be inputted into a resetting circuit 10. While counting a reference synchronization clock produced with the circuit 5, a timer circuit 9 is reset in real time on an hour basis when the real time data arrives.
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