Patent ID: 7832646

Claim:
A method for conducting a purchase transaction at a point of sale terminal, comprising the steps of: contactlessly receiving at a gateway associated with the point of sale terminal, and in a collision-avoiding manner, account data from each of a plurality of individual transaction cards simultaneously placed in proximity to the gateway, each of the plurality of the individual transaction cards having an antenna for communication of the account data therefrom; loading the account data received from each of the plurality of transaction cards into a memory associated with the gateway; presenting payment-options, corresponding to the plurality of individual transaction cards that have been contactlessly received at the gateway, on a display associated with the gateway; receiving a selection of a payment option through a user interface associated with the gateway; forwarding account information associated with the selected payment option from the gateway to the point of sale terminal for use in the purchase transaction; and clearing the memory of account data from each of a plurality of individual transaction cards in advance of a next purchase transaction.