Patent ID: 7174321

Claim:
A memory rental service system in an intelligent authentication unit, comprising: an authentication unit having an IC card part to store plural files and templates for personal identification, and an identification part with a sensor to compare data read by said sensor with said templates to authenticate personal identification, the identification part allowing access to a specific file of the IC card part when identification is authenticated; an application for a write system in which when the specific file of the IC card part is serviced as a rented memory, said application outputs to said authentication unit the contents written in the file, the file number, and information for accessing the file; and a terminal application to output to said authentication unit the file number and the information for accessing the file to read the contents written in the file so as to start a specific application, wherein when the written contents, the file number, and the information for accessing the file are inputted into said authentication unit via said application for the write system, personal authentication is performed, and when the authentication result is true, the contents written in the file is written, while when the file number and the information for accessing the file are inputted from said terminal application so that the written contents will be read out, personal authentication is performed as well, and when the authentication result is true, the contents written in the file are outputted to said terminal application.