| 摘要 |
PURPOSE:To run a frame with multiple channels in a loop-shaped transmission line by time-sharing, simultaneously allow data transfer in a group by carrying multipul passes on each channel and increase the number of transfered data in the certain period. CONSTITUTION:Multiple stations, 1a...1n or one channel among ''3'' in the loop- shaped transmission line generate the frame with multiple channels. The frame of the signal which is patrolling in a transmission line 2 is composed of the frame header and data transfer channel. For the address field of each channel, 2 bits are assigned in the same order as that of channel transmission line and the master station run a vacant frame in the transmission line under initial condition. Where a transmission station is 1a and its address is 1c, one bit is set in the address field corresponding to the vacant channel and data are run. The receiving station 1c takes into this address field, be aware of data transmitted to this station by the bits assigned for this station and takes into these data. |
