Patent ID: 8244207

Claim:
A payment system using a mobile electronic device, the mobile electronic device comprising a memory system storing a plurality of programs and a processor that executes one or more operations for the plurality of programs, the programs comprising: a connecting module operable to establish a wireless communication connection between a credit card terminal and a credit card system corresponding to a credit card; a login module operable to log into the credit card system using an inputted credit card number and password; a determining module operable to determine if the credit card number and the password are correct; a receiving module operable to receive a two-dimensional barcode generated by the credit card system, and to display the two-dimensional barcode on a display device of the mobile electronic device, in response to a determination that the credit card number and the password are correct, wherein the two-dimensional barcode comprises authorization information; a sending module operable to send the two-dimensional barcode to the credit card terminal to verify validity of the authorization information; the receiving module further operable to receive a verification result from the credit card terminal; the determining module further operable to determine if the authorization information is valid according to the verification result; and a prompting module operable to display a prompt for prompting a user for payment on the display device of the mobile electronic device, in response to a determination that the authorization information is valid.