| 摘要 |
PURPOSE:To achieve the expansion of measurement range by letting a dot display device for day display provide common use for time displaying of stopwatch operation. CONSTITUTION:When week displaying count outputs or time count outputs of required digits of stopwatch operation are applied by a gate circuit 1 and latch circuit 2, the storage contents of the ROM constituted by two kinds of decoder circuits are read out by the AND of the count outputs and stopwatch control signals A, B and dot displaying is performed in the required digits of week displaying segemtns (a) thru (g). Then, the minute, second, 1/100 second are displayed in the hour, minute, second displays H, M, S at the stopwatch operation and at the same time displaying of the hour is accomplished by dots, thus displaying of measurements of a wide range may be performed by making combination use of the day diaplaying dot display device with the simple constitution. |
