Nationz Technologies Incorporated

Simin Guan

Hao Zou

Rui Dong

Shiying Liu

Genping Wang

The present disclosure includes a smart card. The smart card includes an audio module to receive a money deduction request in a form of an external audio signal from an external device, wherein the monetary-amount deduction request includes a monetary amount to be deducted and the external device's identification information. The smart card further includes a data processing module to authenticate the external device's identification information, deduct the monetary amount from the smart card after the authentication of the external device's identification information is passed, and generate monetary-amount-deduction result information. The audio module transmits to the external device the monetary-amount-deduction result information in a form of an audio signal, wherein the monetary-amount-deduction result information includes a deducted monetary amount to be added to the external device and the smart card's identification information to be authenticated by the external device.

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Shenzhen, China

Simin Guan