| 摘要 |
<p>PURPOSE:To surely send a signal without being influenced by the line capacity and resistance of a signal line by superimposing a burst signal disregarding the modulation rule onto a video signal having a number equal to number of synchronizing signals among plural kinds of modulated video signals as the synchronizing signal. CONSTITUTION:A Manchester encoder 22 converts an NRZ video signal into a Manchester coding signal 43 and sends it to a superimposing circuit 26. In this case, a synchronizing circuit 23 uses a clock 24 from a clock generating source 25 and gives the result to the superimposing circuit 26 while the synchronizing signal is synchronized with the Manchester coding signal 43. Receiving a signal sent from a transmission system by a receiver 31 of a reception system, a Manchester decoder 32 converts Manchester coding signals 206-208 into NRZ video signals 301-303, while a separation restoration circuit 33 restores synchronizing signals 304, 305 separately from the burst signal of the Manchester coding signal and outputs to a CRT display by using an output circuit 37.</p> |
