| 摘要 |
PURPOSE:To ensure to communicate with a GII facsimile device and GII/GIII facsimile device, by inhibiting the transmission of a binary signal through pressing a reception button of the GII/GIII facsimile device for a prescribed time. CONSTITUTION:When a reception button 40 is depressed, a flip-flop 41 is set and a high level signal is outputted to a Q-output 47 and the reception is indicated, and a pulse keeping for a prescribed time is produced to an output Q' of a monostable multivibrator 42. When the prescribed time is elapsed, it is set to the Q' output with a D flip-flop 43. The inverting signal for the Q' output of the flip-flop 43 and the depression signal of the button 40 is inputted to an AND gate 44, the output sets a flip-flop 45, and a GII flag is outputted to a Q output 46. The flip-flops 41, 43, and 45 are reset with a reset signal appeared on the Q- output 47. |
