| 摘要 |
PURPOSE:To prevent the input of defective data when a default is generated in a synchronizing signal to be sent from the 1st computer system to the 2nd computer system together with data by generating and transmitting a special code immediately to transmit the default to the 2nd computer system. CONSTITUTION:A transmission data 9 and a synchronizing signal 10 from the 1st computer system 1 are synchronized with a master clock of the 1st digital multielectrifying device 5 again through a data accumulation part 11 and a special code inserting part 18 successively. After passing through a transmitter 7 and a receiver 8, these data are restored by the 2nd digital multiplying device 6 and data are accumulated in a receiving part 12 and then accumulated in the 2nd computer system 4 as received data 14 by the synchronous timing 15 of a received synchronizing signal generating part 13. When the synchronizing signal is stopped in the 1st computer system 1, the stop of the signal is detected 16 and a special code is generated 17 and inserted 18. The 2nd computer system 4 detects the special code and discriminates that the received data are not normal one. Consequently defective data are prevented from been accumulated. |
