| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology for more shortening time required for the correction of time without generating backtracking in time.SOLUTION: The time correction device includes: a reference clock section 11 for clocking reference time; a device clock section 12 for clocking device time; a check time detection section 13 for detecting check time; and a time correction section 14 for, when the check time arrives, comparing the reference time with the device time, and for, when the device time delays from the reference time, inputting the reference time to the device clock section 12 to set the reference time as the device time, and for, when the device time advances from the reference time, allowing the device clock section 12 to stop to clock the device time only in a period of a difference between the reference time and the device time. |
