| 摘要 |
PURPOSE:To give the preset function, by performing the display for a number of digits with one display drive circuit, through the combination of the dynamic illumination display system and the preset circuit. CONSTITUTION:The electronic counter 14 having the memory function is connected to the display elements 11a-11c of the display unit 11 via the display drive circuit 10 and the digit display drive circuit 15. The digital switches 13a-13c are connected between the display drive circuit 10 and the digit display drive circuit 15. Coincidence signal is outputted from the digital switches of each digit every time when the displayed numeral of each display element and the numeral set to the digital switch are in agreement, this coincidence signal enters the coincidence circuit 16 and inputted to the delay circuit 17 assembled to one line via the gate and the preset signal is outputted to the output terminal when each digit is in agreement with the set value. |
