Abstract: Disclosed is a method of forming an identification pattern for a touchscreen. The method comprising: (a) defining a touch region by touching a region forming point on a touchscreen; and (b) forming an identification pattern by touching an identification pattern point in the touch region.

Abstract: A data transmission method may include receiving identification (ID) information from a data transmission device. The method may also include receiving encoded security information from the data transmission device. The method may include verifying validity of the ID information by decoding the encoded security information. The encoding and decoding of the security information may be performed using a one-time password (OTP) code.

Abstract: Confusion between service providers due to the technical limitation of a GPS sensor included in a wireless communication device of a service user is avoided. A data transmission device connected to a server and for transmitting visit data to a wireless communication device is disclosed. The data transmission device may include a button part, when pressed, for transmitting to the server visit data of the wireless communication device; and touch screen touching parts connected to the button part so as to input an electrical signal to a touch screen of the wireless communication device. The visit data may be transmitted to the wireless communication device from the server when the button is pressed and an electric signal is input to the touch screen. The at least one touch screen touching part may include a plurality of touch screen touching parts, and each of the data transmission devices in a predetermined area may have different layouts of the touch screen touching parts.

Abstract: Provided is a data transmission method. The data transmission method includes: (a) receiving ID information of a data transmission device from the data transmission device by using a wireless communication device; and (b) receiving encoded security information from the data transmission device by using the wireless communication device.

Abstract: Disclosed is a method of forming an identification pattern for a touchscreen. The method comprising: (a) defining a touch region by touching a region forming point on a touchscreen; and (b) forming an identification pattern by touching an identification pattern point in the touch region.

Abstract: Provided is a method and system for ensuring that a service user has actually visited a service providing store. According to an embodiment, there is provided a system for recording visit data of a wireless communication device. The system includes: an electronic device which includes one or more sensors that can recognize locations and motions; the wireless communication device which includes one or more sensors that can recognize locations and motions; and a server which transmits to the wireless communication device data indicating that the wireless communication device has visited a location where the electronic device is installed if it is sensed by the sensors of the electronic device and the sensors of the wireless communication device that the electronic device and the wireless communication device exist within a predetermined distance range and that predetermined motion conditions have been executed.