Design factors to be considered in wide band Pre-D recording and playback equipment for usage in a versatile Pre-D system are presented. These design factors are introduced in a discussion of both the down-translator and up-translator. The mechanisms which produce spurious outputs from the up-translator and the effects caused by these spurious outputs are treated in detail. The extension of Pre...

Automatic equipment for cigarette sorting and stacking is applied to a recycling process of tobacco in cigarette factory. It takes the place of manual work, such as sorting and stacking cigarettes to transfer boxes. The equipment realizes the functions such as orientation, sorting, steering, and stacking of the cigarettes in proper order. Omron CP1H type PLC is selected as the control center of...