The present invention includes pick-up unit to pick display interface displayed on the remote screen and with one visual pointer. The visual pointer is positioned to one reference target part of the display interface and is produced by one pointer element. It also includes an other projectino unit, which projects one display content on the remote screen based on the pick-up unit. The display content corresponds to the target parts of the display interface and is projected and displayed directly after the pick-up unit scans. |