USB USB Universal Serial Bus communication system command input apparatus and Universal Serial Bus communication method

摘要

The present invention relates to a USB communication system, a command input device, and a USB communication method that enable a device to be connected to an information terminal to drive a program. The present invention can drive a first application through a USB port of an information terminal, A first USB device for outputting an input signal; A second USB device capable of driving a second application through the USB port of the information terminal and communicating with the information terminal according to a registration rule pre-registered in the information terminal; An internal communication line connecting the first USB device and the second USB device to each other; And transmitting the input signal output from the first USB device to the information terminal so that the first USB device can indirectly communicate with the information terminal using the second USB device, And a controller for transmitting the registration protocol signal to the second USB device via the internal communication line.