US Patent 10304053 Shopping check-out with a payment card

A technique for providing a checkout experience using a payment card is disclosed. An electronic device at a store detects a movement of a product away from the store by using a first short-range wireless link. The electronic device then receives from the product information identifying the product. The electronic device also detects the presence of a payment card near the product around the same time that it detects the movement of the product, by using a second short-range wireless link. The electronic device then receives information from the payment card information identifying an account on a server system. Upon determining that the product is at least a certain distance away from the store for at least a certain amount of time, the electronic device processes a payment for the product by the owner of the account.