| 摘要 |
<P>PROBLEM TO BE SOLVED: To keep the easiness of access to shared information which is computerized and stored from a user terminal device while prohibiting an access from an improper place and prohibiting an unauthorized access through a network, whereas its access right is changed depending on the position of the user terminal device. <P>SOLUTION: This system comprises a server (electronic information management device) 101 managing electronic information, a client (user terminal device) 102 for acquiring electronic information from the server 101, a reader 103a and a radio tag detecting the position information of the client 102, and a position authentication part 104 authenticating the position of the client 102 from the detected position information and changing the access right of the client 102. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
