DEVICE FOR IMPROVING PERFORMANCE OF CONTACTLESS FUNCTION IN MOBILE PHONE HAVING CONTACT/CONTACTLESS SMART CARD

摘要

The present invention provides a contact / contactless smart card in a state in which power is not supplied to a contact portion of a contact / contactless smart card from a mobile communication terminal because power supply to the mobile communication terminal is stopped in a mobile communication terminal provided with a contact / contactless smart card. The present invention relates to an apparatus for improving the non-contact function of a mobile communication terminal equipped with a contact / contactless smart card, which can improve a phenomenon in which the contactless performance of the contactless device is reduced. The non-contact function performance improving device 1 according to the present invention is a circuit for the contact / contactless smart card 3 and the mobile communication terminal in a mobile communication terminal 2 equipped with a contact / contactless smart card 3. Disposed between the batteries 4 for supplying power to (2); RF detection module 10 for detecting whether the RF communication between the contact / contactless smart card (3) and the card reader (R); And when the RF communication between the contact / contactless smart card 3 and the card reader R is detected by the RF detection module 10 while the power supply to the mobile communication terminal 2 is stopped, A switching module for electrically connecting the contact / contactless smart card 3 to the battery 4 such that power supply to the contact portion 3A of the contact / contactless smart card 3 is directly supplied from the battery 4. 20; It includes.