Abstract:
An electronic device comprising: a near field communication (NFC) module; a magnetic stripe data transmission (MST) module; and at least one processor functionally coupled to the NFC module and the MST module, wherein the processor is configured to: select at least one of the NFC module or the MST module; and transmit payment information to an external device by using the selected module.
Abstract:
An electronic device that makes a payment with an external payment device includes a power module configured to power the electronic device is provided. The electronic device includes a memory configured to store first payment information that accompanies a user authentication and second payment information that does not accompany the user authentication, a near-field wireless communication module configured to send the first payment information or the second payment information stored in the memory to the external payment device, and a processor configured to obtain power information of the power module, to set the memory such that the first payment information is sent to the external payment device if a value corresponding to the power information is greater than or equal to a power value, and to set the memory such that the second payment information is sent to the external payment device if the value corresponding to the power information is less than the power value.
Abstract:
A method of controlling power supply for a fingerprint sensor is provided. The method includes receiving sensor data obtained from the fingerprint sensor; determining whether the received sensor data is a fingerprint form of data; if the received sensor data is the fingerprint form of data, determining an amount of change in sensor data received over a predetermined time is greater than or equal to a predetermined value; and if the received sensor data is not the fingerprint form of data or if the received sensor data is the fingerprint form of data but an amount of change in the received sensor data is less than the predetermined value, allowing the fingerprint sensor to enter a power saving mode.