| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a time setting system or a time setting method capable of setting a time accurately even when transmission of time information is delayed. <P>SOLUTION: This time setting system for setting a master time outputted from a master device in a slave time of a slave device clocking independently of the master device is equipped with a transmission means for transmitting master time requirement information for requiring the master time to the master device through a network. The master device is equipped with a tolerance information acquiring part for acquiring tolerance information for showing an allowable time wherein the master time is allowed to be set in the slave time of the slave device, and a transmission means for transmitting the master time and the tolerance information to the slave device. The slave device is constituted so that a difference time between the first slave time acquired before and after transmission of the master time requirement information and the second slave time acquired at the reception time of the mater time and the tolerance information is determined, and that, when the allowable time is larger than the difference time, the master time is set. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
