QR The method and device to exchange name card by QR code

摘要

Most people in social life use paper business cards. However, paper business cards have to be produced at costs, and a user has to look at a business card and individually input details for creating an address book. After generating a QR code using personal information and displaying the QR code on a smartphone screen by a person who provides own information, the person who provides information scans a QR code of a counterpart smartphone screen to the smartphone of the person, and uses the QR code obtaining the counterpart information by scanning the QR code of the counterpart smartphone screen to the smartphone of the person. According to the present invention, the costs are reduced as the paper business card is not necessarily manufactured, so that the counterpart information is not necessarily input in the address book.