| 摘要 |
PURPOSE:To prevent malfunctions on reproducing operations or the like and to improve maneuverability by performing mutual comparison of light regulation levels memorized at adjacent times and displaying a difference of the light regulation levels. CONSTITUTION:Data of a light regulation level at the present time is outputted from a light regulation level memory 13 to an illumination load 14 through a dimmer 15, and data on the next scene is inputted to a line e1 through a load selection part 12. In a comparator 17, a light regulation level L1 on the next scene on the input line e1 in the light regulation level memory 13 is compared with a light regulation level L1 a on the present scene on an output line f1. A result of this comparison is inputted to a display driving part 18 in which two light-emitting diodes R1 and G1 different in their displayed colors are individually turned on/off. Hence the present scene data can be compared with the next scene data, so that variation states of the light regulation data can be easily confirmed and malfunctions can be prevented. |
