| 摘要 |
<p>PURPOSE:To provide a time adjusting method through a communication line capable of executing correctly time adjustment by communication. CONSTITUTION:A setting device 11 provided with an internal clock 115 to clock true time and a device 12 to be set provided with the internal clock 215 to be adjusted to the true time are provided, and the communication of one round trip is executed between the setting device 11 and the device 12 to be set, and an error between the internal clock 115 and the internal clock 215 is determined by taking communication time spent for this communication into consideration, and this error is corrected. Besides, the communication is executed plural times between the setting device 11 and the device 12 to be set, and the communication time spent for this communication is averaged, and the error between the internal clock 115 and the internal clock 215 is determined by taking the average communication time into consideration, and this error is corrected.</p> |
