| 摘要 |
PURPOSE:To give terminals the right of data communication equally by varying the operation time constant of a monostable multivibrating circuit which synchronizes with data transmission through a random signal generating circuit, and detecting whether data transmission is performed or not from the output of the monostable multivibrating circuit. CONSTITUTION:The operation time constants of monostable multivibrating circuits 1-1n which operate synchronizing with the transmission of data are varied by random signal generating circuits 3-3n, and communication control circuits 4-4n detect whether data is transmitted onto a transmission medium or not by the outputs of the monostable multivibrating circuits 1-1n. The circuit 4n with a terminal No. (n) reports the completion of the data transmission to the circuit 3n after the data transmission is completed. Then, the circuit 3n sends the indication of a selection of pulse width corresponding to a random signal value to a pulse width selecting circuit 2n. Consequently, the circuit 1n has a new time constant. |
