Internet access system, method of data transmission in the internet access system and information terminal using the internet access system

摘要

The present invention is aimed to provide an Internet access system, a data transmission method in the Internet access system and an information terminal using the Internet access system. In the Internet access system, the data transmission method in the Internet access system and the information terminal using the Internet access system according to the present invention, a unique data to authenticate a transmission capability of a portable information device (10) is preliminary stored not to be rewritten in the portable information device, so that the unique data can be send to the Internet access system (50) when accessing the Internet. Accordingly, in the Internet access system, it is possible to be aware of the transmission capability of the portable information device requesting Internet access.