To provide an information distribution system for speedily distributing information contents which can be utilized "only in that place" and "only at that time" with high security.
The information distribution system is equipped with: an object server 2 for receiving a session key sent from the user device 1 by nearby directional electromagnetic waves; a session server 4 for receiving and storing three set data of the session key, an object server ID and the time transmitted from the object server 2; and a content server 3 for receiving the session key and a URL transmitted from the user device 1 through a wireless network, inquiring the session server, and when the three set data having the same session key as the session key are stored in the session server 4, distributing an information content page corresponding to the object server ID of the three set data to the user device by the URL.
COPYRIGHT: (C)2007,JPO&INPIT
MORI AKIRA
IZUMIDA HIROMUNE
| JP2004078277A | 2004-03-11 |