| 摘要 |
PROBLEM TO BE SOLVED: To provide effective usage of paths with the restricted channel number. SOLUTION: Data communication is conducted among devices connected with a path where control signals are transmitted by asynchronous communication packets and information signals by synchronous communication packets. A first device issues an output request for information signals to a second device by asynchronous communication packets, and the second device answers the channel information for information signals, which are being outputted, to the first device by asynchronous communication packets in response to the output request, and the first device inputs information signals by synchronous communication packets based on the channel information.
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