| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce delay difference to be generated by passing through a different transmission path when a synchronization device receives time information and timing information to be supplied from a synchronization information supply device. <P>SOLUTION: The synchronization system is constituted of: a supply device which transmits ToD and 1pps from a GPS receiver; and the synchronization device which performs synchronization by receiving ToD and 1pps. The supply device is provided with: a GPS reception module which generates ToD and 1pps; a ToD transmitting section; and a 1pps transmitting section, the synchronization device is provided with: a ToD receiving section which receives ToD; a signal receiving section which receives 1pps; and a round-trip ToD transmitting section which transmits round-trip ToD on the basis of the received ToD. The supply device receives the round-trip ToD, estimates a delay amount of timing which the ToD receiving section receives with respect to transmission timing by the ToD transmitting section on the basis of 1pps at which ToD is transmitted and 1pps at which the round-trip ToD is received, and converts information generated by an information generation section into information according to the delay amount to be transmitted from the ToD transmitting section. <P>COPYRIGHT: (C)2011,JPO&INPIT |
