| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a time information communication system for keeping high time synchronous accuracy even when the number of time clients increases, and reducing the network load and processing load of a time server. <P>SOLUTION: This time information communication system comprises the time server 100 having an internal clock used as a reference, and a time client 200 that is connected to the time server 100 via a communication route 30, acquires time information of the internal clock 101, and corrects the time of the internal clock 201. The time client 200 comprises a route error time calculating means 204 for calculating a route error time based on the response to a route error time measuring demand transmitted to the time server 100 with a predetermined period, a time difference calculating means 206 for calculating the time difference information based on the time reporting information transmitted from the time server 100 with a predetermined period and the route error time, and a time correcting means 205 for correcting the time of the self internal clock 201 based on the time difference information. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
