CREDIT CARD TRANSACTION METHOD OF NO - VOUCHER OF CREDIT CARD USING SMART PHONE

• Main Author: KANG, TAE JUNG
• Format: Patent
• Language: English; Korean
• Published: 03.05.2013
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

PURPOSE: A credit card transaction method for safe use of a credit card, capable of not using a credit card sales slip by using a smart phone is provided to identify a user by comparing the signature information of registered users and a signature signed in a preliminary authorization window by a credit card company server. CONSTITUTION: A credit card terminal requests authorization to a credit card company server(10). The credit card company server transmits preliminary authorization information to the smart phone of a credit card user(20). The payment application of the smart phone guides a user to sign in a signature window formed in a preliminary authorization window(30). The credit card server compares the signature of the transmitted preliminary authorization window with the signature information of registered users, transmits authorization information to the credit card terminal, and transmits a payment authorization window to the smart phone(50,60). [Reference numerals] (10) Authorization request step; (20) Preliminary authorization transmitting step; (30) Signature step; (40) Signature transmitting step; (50) Signature comparing step; (60) Statement transmitting step