| 摘要 |
PURPOSE:To prevent the effect of crosstalk with simple constitution by allowing each station to transmit a data signal in different time slots in the system transmitting data bidirectionally. CONSTITUTION:An NRZ signal is used as a data signal to be transmitted, a data transmission time for one bit's share is divided into two; first half and latter half, and the data is transmitted at the first half from a master station transmission/reception device 41 to a slave station transceiver 42 and the data is transmitted from the slave station transceiver 42 to the master station transmission/reception device 41 at the latter half. Thus, no overlapping between both data signals is caused and even if a stroke by a reflected light is large, the data is reproduced. |
