earticle

영어

A new type of digital signal method is presented for embedded systems including mobile handheld devices. A digital communication method is suggested for mobile phone and embedded devices using screen light signals that contain data such as game item, payment information, personal information, and so on. The new method provides an economic and efficient solution to mobile networking environment. We studied the solutions focusing on payment system by updating embedded software without need of additional hardware modules to mobile devices. The solutions can be used also for digital item movement between mobile phones or game devices.