| 摘要 |
PURPOSE:To prevent the collision of a wireless signal by switching a repeater to a signal receiving state, accumulating a received signal, and thereafter, bringing it to repeating transmission, when a carrier signal transmitted prior to a signal transmission from other repeater or transmitter is detected. CONSTITUTION:This system consists of transmitters 1a, 1b, 2a and 2b, repeaters 3a0, 3a1, 3b0 and 3b1, and a receiver 4. In this case, at the time of executing a repeating transmission, when a carrier signal for showing a fact that other repeater or transmitter enters into a signal transmitting state is detected, the repeater holds the repeating transmission and becomes a signal receiving state, so that after the reception is completed, the repeating transmission is executed. In such a way, the collision of a signal brought to repeating transmission and a signal from other repeater or transmitter can be avoided. |
