| 摘要 |
A transmission circuit (611, 823, 1125) of a transmission device (601, 801, 1101) transmits a signal to a reception circuit (621, 843, 1155) of a reception device (602, 802, 1102) via a plurality of signal paths included in a communication line (603, 803). A first interface circuit (612, 813, 1115) is connected to the transmission circuit and one or more signal paths. A second interface circuit (613, 814, 1116) is connected to the transmission circuit and remaining signal paths expect for the one or more signal paths. A third interface circuit (622, 833, 1145) is connected to the reception circuit and the one or more signal paths. A fourth interface circuit (623, 834, 1146) is connected to the reception circuit and the remaining signal paths. An operation for transmitting and receiving the signal via the plurality of signal paths is changed to an operation for transmitting and receiving the signal via the remaining signal paths when the one or more signal paths enter a disconnected state. |
