Patent ID: 9665866
Date: 2017-05-30
CPC Classifications: G06K,G06Q,G07F

Claim:
1. A smart card communication method, comprising: selecting, by a channel-switching module, a first audio module for communication between a first smart card and a second smart card, the first audio module being independent from a radio frequency (RF) module; activating the first audio module based on the selection; disconnecting the RF module based on the selection, wherein the RF module includes an RF antenna for communicating RF signals; receiving, at the first smart card having the first audio module, a monetary-amount deduction request in a form of an external audio signal from the second smart card having a second audio module, wherein the monetary-amount deduction request includes information about a monetary amount to be deducted and identification information of the second smart card, wherein the first audio module and the second audio module include one or more piezoelectric devices for providing audio signals; authenticating, at the first smart card having a first data processing module, the identification information of the second smart card; modifying, by the first data processing module, monetary information stored in the first smart card according to the information about the monetary amount to be deducted after the authentication of the identification information of the second smart card is passed; generating, by the first data processing module, monetary-amount-deduction result information; transmitting, by the first audio module, to the second audio module of the second smart card the monetary-amount-deduction result information in a form of an audio signal, the monetary-amount-deduction result information including information about a deducted monetary amount and identification information of the first smart card to be authenticated by the second smart card; and adding, at the second smart card, the deducted monetary amount to a monetary amount stored in the second smart card according to the information about the deducted monetary amount after the authentication of the identification information of the first smart card is passed.