Near field communication device and method for saving applied power

摘要

An NFC device and an applied method for power saving is provided. The NFC device includes a display unit, an NFC module, a proximity sensor and a control unit. In an initial state, the NFC module is on an idle mode, and the display unit is on an active mode. The proximity sensor is arranged adjacent to the NFC module, and detects whether an external NFC terminal comes close to the NFC device. If the proximity sensor determines that the external NFC terminal comes close to the NFC device, and the proximity sensor generates and sends a first interrupt signal to the control unit. The control unit enables the NFC module and disables the display unit, in response to the first interrupt signal, resulting in reduced power consumption of the display unit and reduced EMI interference generated between the display unit and the NFC module.

主权项

1. A near field communication (NFC) device comprising:
a display unit and an NFC module, wherein in an initial state, the NFC module is on an idle mode, and the display unit is on an active mode; a proximity sensor arranged adjacent to the NFC module, and the proximity sensor configured to detect whether an external NFC terminal comes close to the NFC device; wherein if the proximity sensor determines that the external NFC terminal comes close to the NFC device, and the proximity sensor generates and sends a first interrupt signal to a control unit; and the control unit configured to enable the NFC module and disable the display unit, in response to the first interrupt signal.