| 摘要 |
PURPOSE:To minimize a delay time produced at the data relay, by outputting a synchronizing control signal to a relayed transmitter of the data from a data reception timing of a data relaying transmitter so that the synchronizing words can be started. CONSTITUTION:A data relaying transmitter 13 demodulates a data transmitted cyclically at a damodulator 1 and it is added to a series parallel converter 2 with demodulated data to make parallel data. On the other hand, a word detector 5 detects ''Word 1'' in the data reception timing and transmits a synchronizing control signal 12a to a synchronizing word start circuit 11 via a synchronizing control signal line 12. The A synchronizing word start circuit 11 is driven with this signal and the synchronizing word SYN of a data relaying transmitter 15 is started in the timing of the ''Word 1'' of the device 13. Thus, the data timing afterward is taken as a relay delay time or 1-word time, allowing to assure the minimum delay time. |
