| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable to offer information to many and unspecified users by less information bubble while being able to perform retrieval/reference of information by analog handling nearer to human sense at a user terminal by using information bubble registered virtually in real physical space in offering information service. <P>SOLUTION: This server unit is constituted to be provided with an information bubble management part 39 which manages bubble data (information bubble) associating space range information including position information in real physical space with desired offer information, an extraction part 40 which extracts offer information of bubble data including retrieval object space range information based on position information of a user terminal, an offer part 41 which offers extracted offer information to the user terminal, and an information bubble movement control part 42 which makes information bubble move virtually in the real physical space by updating at least position information of the bubble data. <P>COPYRIGHT: (C)2007,JPO&INPIT |
