| 摘要 |
<P>PROBLEM TO BE SOLVED: To make selectable the application, and make issuable a warning by adding error information accumulated every time when time information transmitted by a relay method in a master-and-slave clock system is relayed concerning the time information, and improving the convenience of using the time information. <P>SOLUTION: In the master-and-slave clock system including a plurality of slave clocks receiving the time information from a master clock by a relay method, and carrying out time correction, the master clock 2 has a receiving means 21 for receiving standard time information, a correcting means 23 for correcting one's time on the basis of the received standard time information, a sending means 28 for generating the time information for correcting time of the slave clock in the system on the basis of one's corrected time and sending it to the slave clock in the system, and a means 41 for adding the error information regarding the time information based upon accuracy of the master clock determined when correcting the time of the master clock to the time information to be sent by the sending means. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
