Patent ID: 8113438

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; selectively providing preference data from one of the individual transaction cards to the gateway; loading the account data received from each of the plurality of individual transaction cards into a memory associated with the gateway; presenting on a display payment-options corresponding to the plurality of individual transaction cards that have been contactlessly received at the gateway, the presentation being made in accordance with the provided preference settings, if any, and otherwise in accordance with default preference data; receiving a selection of a payment option; 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 the plurality of individual transaction cards in advance of a next purchase transaction.