| 摘要 |
A transfer path control system has a first transfer device and a second transfer device connected through a first transfer path and a second transfer path to the first transfer device. The first transfer device has an adding unit adding index data to data transmitted to the first and second transfer paths. The second transfer device has a selection unit, to which the data transferred through the first and second transfer paths are given, transmitting only the data corresponding to the transfer path selected from the first and second transfer paths, a first detecting unit detecting the index data from the data having arrived through the first transfer path, a second detecting unit detecting the index data from the data having arrived through the second transfer path, a phase difference detecting unit detecting a phase difference between the first and second transfer paths on the basis of the index data detected, and a judging unit judging whether or not the phase difference detected falls within such an allowable value that the one transfer path selected can be instantaneously switched over to another transfer path.
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