Abstract: A dual-interface card reading device, having a main body and cover plate assembled to form an opening which accommodates insertion of a magnetic card or an IC card, one side of the opening defining a hollow slide groove to enable swiping of a magnetic card or an IC card. A magnetic head extends into the opening to read the magnetic card, and at one end of the hollow slide groove is an IC card contact interface for reading the IC card. A user can thus simultaneously swipe either type of card at an appropriate interface while achieving the effects of small size, low cost, and convenient operation.

Abstract: A card transmission device includes a motor and a shaft connector, a worm shaft with worms on both ends thereof, two transmission shafts with one end engaging with the worm and another end having a transmission pulley, and a driven pulley arranged below the transmission pulley, whereby the motor rotates the transmission shaft to enable the transmission pulley and the driven pulley to clamp and move the card. By the inventive device, the advantages of compact size, broad applicability and fewer accessories can be achieved.