| 摘要 |
<p>PURPOSE:To prevent collision between relay use synchronizing signal in each slave station and to build up or expand a communication network automatically by using a natural random number so as to relay the synchronizing signal in a random timing. CONSTITUTION:A reception synchronization timing signal 1 resets a time base 2 and a frame counter 3 to allow a clock signal 4 and a frame timing signal 5 to be subjected to subordinate synchronization. The counter 3 counts the clock signal 4 and outputs a frame timing signal 5: A natural number generating circuit 6 uses the signal 1 as a trigger signal to send a random number signal 7 to a control circuit 8, which monitors the signal 5 and sends a relay frame timing signal 9 when the signal is coincident with the frame timing equivalent to the random number signal 7. A synchronizing signal generating circuit 10 is triggered by the signal 9 and a synchronizing signal 11 is sent.</p> |
