| 摘要 |
PURPOSE:To eliminate the interruption of data transmission and to improve the transmission efficiency, by discriminating the presence or absence of a circuit switching command data transmission and then switching the circuit when said switching command exists. CONSTITUTION:The transmission data of a transmitter 1 is supplied to a shift register 26 of a circuit switch 2 and then transmitted to a circuit switch part 30 via a delay circuit 27 in a prescribed order. In this case, the transmission data held at the register 26 is transferred to a command deciding part 28. At the same time, whether a switch command 24 is contained in the transmission data or not is discriminated. If the command 24 exists, the part 28 delivers a circuit switch signal to supply it to a branch circuit 30 via a delay circuit 29 to switch the circuit. In such a way, the interruption of data transmission is prevented, and the transmission efficiency is improved. |
