| 摘要 |
Described herein is a payment processing device for processing payment from a consumer at a merchant location using a user device, the device comprising a presence detection module configured to detect presence of the user device at the merchant location; and a checkout module configured to communicate with a backend system to verify an identity of the user device, to receive payment information from the user device, and to transmit payment information to a merchant point-of sale (POS) system. |
