A system and method is disclosed that triggers touch enabled payment using a wearable device. The system includes a wearable such as a wrist or finger worn device and a point of sale terminal (“PoS” below) configured for touch payment. The wearable includes a low-power wireless transmission device and a metallic contact that connects its antenna to the wearer’s body. The PoS has a contact zone that is similarly connected to its antenna. During payment, the wireless transmission device on the PoS sends a discovery signal. When the user touches the contact point on the PoS, the wearable device matches impedance with the receiver on the PoS to establish communication. The PoS switches to transaction mode. The transaction is securely authenticated and the user is then notified.
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Moeller, Jonathan, "Touch-Triggered Payment Using A Wearable Device", Technical Disclosure Commons, (June 19, 2017)