| 摘要 |
PROBLEM TO BE SOLVED: To obtain an information device which is capable of time synchronization without requiring complication or the like of the device.SOLUTION: A information device is configured to include: transmission means 71; reception means 72; time synchronization determination means 73; delay time calculation means 74; synchronization time correction means 75; and time synchronizing means 76. The transmission means 71 defines, as a first time, the time when a request for time information from another information device was transmitted to a first communication line. The reception means 72 defines, as a third time, the time when a second time at which another information device responded was received via a second communication line. The synchronization time determination means 73 outputs a first correction value calculated from the first, second, and third times. The delay time calculation means 74 outputs a statistic obtained by subjecting, to statistical processing, a delay time on communication lines calculated from the plurality of times. The synchronization time correction means 75 outputs a second correction value obtained by correcting the first correction value in accordance with a correction method based on the statistic. The time synchronizing means 76 corrects time information of the information device by the second correction value. |
