Credit card transaction method using smartphone that does not use credit card sales slip

Abstract

The present invention relates to a credit card transaction method using a smartphone, which does not use a credit card sales slip. More particularly, the present invention relates to a credit card transaction method in which credit card authorization information is transmitted to the smartphone of a user when the user uses a credit card, signature data is transmitted to a credit card company to obtain normal authorization when the user enters a signature to the smartphone to which the authorization has been transmitted, and a slip is transmitted to the smartphone from the store in which the payment is being performed by the credit card, thus normally performing a credit card transaction without a credit card sales slip. The credit card transaction method of the present invention comprises an authorization request step, a preliminary authorization transmitting step, a signing step, a signature transmitting step, a signature comparing step, and a slip transmitting step. According to the present invention, a printed sales slip is not used in order to save resources, a credit card company server checks whether or not a signature corresponds to the registered signature information instead of determining authorization by means of only a telephone number, to thereby enable accurate user authentication and thus enable the safe use of a credit card. Further, information on the credit card usage of the user is recorded on his/her smartphone, thus enabling the user to manage his/her usage at the same time.

Description

technical field [0001] The present invention relates to a credit card transaction method using a smart phone instead of a credit card receipt, and more particularly to a credit card transaction method. When a credit card user uses a credit card, the authentication information is transmitted to the user's smart phone, and on the transmitted smart phone When signing, the signature data is transmitted to the server of the credit card company to complete normal authentication, and then the digital credit card receipt is transmitted to the smartphone, so even if there is no paper credit card receipt, credit card transactions can be performed normally. [0002] Furthermore, the present invention relates to an electronic signature device including an advertising function, and more particularly to an electronic signature device including an advertising function, which is mostly formed as a settlement device used in a general store, that is, a card swiping terminal device or a POS syste...

AI Technical Summary

Problems solved by technology

[0007] In addition, due to the rapid increase in the use of credit cards recently, a large number of payment devices for credit cards are used, but typically, card payment terminals or POS systems are used.

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