| 摘要 |
PURPOSE:To eliminate the malfunction due to the noise for the circulating time- division multiple transmission system by providing the noise detecting time slots before and after the time slots of plural number of channels which perform the signal transmission and then giving the reading control. CONSTITUTION:Terminal 1 is the signal input terminal, and pulse SP samples the signals of the time slots of each channel and the noise detection. AND circuit AN1, AN2... plus flip-flop FN1 and FN2... are for detection of the noise; and AND circuit A1, A2... plus flip-flop F1, F2... are for detection of the signals each. When FN1, FN2 and AN2 detect no noise, NA1, NA2 and NA3 generate the negative pulses to make the signal reading circuit read the signals given from F1, F2 and F3 each. While in case the noise is detected, no signal reading is given. |
