| 摘要 |
PURPOSE:To obtain the time of an optional area with a simple operation and constitution, by obtaining the relative time differential between the two areas from the absolute time differential of those two areas. CONSTITUTION:Mode change-over switch 3 is set in the clock mode, and the numerical value of the absolute time differential of area B is supplied via the operation of numerical key part KN. Thus the numerical value is stored in temporary memory register RB. Then the contents of register RB is transferred to numerical value memory register R1 by the operation of the key. On the other hand, numerical value register R stores the absolute time differential corresponding to area A, and the storage is transferred to output register Acc. Then the contents of register Acc and the contents of register R1 are subtracted through adder/subtractor As to obtain the relative time differential between areas A and B. This time differential is then supplied to register Acc. Then the contents of Acc is added to the time of area A which is stored in time memory register Ro and then supplied again to register Acc. The contents of Acc is transferred to register Ro to turn into the time of area B. The time is displayed via display register DSP. |
