Abstract: The invention provides a chip-and-PIN reader device having a slot for accommodating a chip-and-PIN card, a set of electrodes adapted to come into contact with corresponding electrodes on the card when the card is inserted into the slot, and a means for ensuring correct registration between the electrodes on the card and the set of electrodes of the reader device. The means for ensuring correct registration may include two orthogonally disposed walls of the slot, against which the card is pushed. Alternatively, the means may include a pair of electrodes on each side of the set of electrodes of the reader, which are short-circuited when the chip electrodes are not correctly registered with the reader electrodes. The short-circuit is flagged to the user of the card. The reader may also be equipped to read an MSR-type device.

Abstract: The invention provides a chip-and-PIN reader device having a slot for accommodating a chip-and-PIN card, a set of electrodes adapted to come into contact with corresponding electrodes on the card when the card is inserted into the slot, and a means for ensuring correct registration between the electrodes on the card and the set of electrodes of the reader device. The means for ensuring correct registration may include two orthogonally disposed walls of the slot, against which the card is pushed. Alternatively, the means may include a pair of electrodes on each side of the set of electrodes of the reader, which are short-circuited when the chip electrodes are not correctly registered with the reader electrodes. The short-circuit is flagged to the user of the card. The reader may also be equipped to read an MSR-type device.