| 摘要 |
<p>PURPOSE:To make dimming control of the same illumination load by smoothly changing over the dimming signals given from a plurality of dimming operation means. CONSTITUTION:Dimming signals A from a dimming operation console-A are stored in an accommodation area-A 11 one by one, while dimming signals B from another dimming operation console-B are stored in another accommodation area-B 12 one by one. The dimming levels PAn, PNn for each illumination which are stored in these accommodation areas 11, 12 are fed to a calculator circuit 13. This calculator circuit 13 determines the synthetic signal On from the formula 0n=(CaXPAn+CBXPBn)divided by 255 using control levels CA, CB given by a cross-fader 6 through an ADD convertor circuit 14.</p> |
