The present disclosure relates to a continuous process for making floor mats having a textile upper surface and a rubber or rubber-like backing. To achieve this, the colors of pixels constituting an image represented by image data are specified by a color palette table. Significant simplification of the logic can thus be achieved that is suitable for applications in CADCAM and in design and manufacture of integrated circuits. A sensing apparatus generates motor signals representing an operational variable of the motor. Further, when performing the AD conversion on the pixel signal corresponding to the signal level, the latch control unit causes the latch circuit of the latch unit to enter the enabled state at the second timing according to the comparison end in the comparing unit. The thus received execution result is outputted from an output part.