| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a mobile terminal device wherein a group is formed among a plurality of users and the users can share files without the need for disclosing personal information. <P>SOLUTION: A user uses an operation section 20 to enter a nick name and a keyword and transmits a file sharing request to another mobile terminal device together with the nick name and the keyword. In the mobile terminal device on a receiving end, a file sharing group operation application 17 extracts the nick name and the keyword from the received file sharing request, a display section 19 displays a file sharing permission selection by using the nick name and the keyword for a file sharing request sender, and the sender permitted for the file sharing is registered with a shared group database 18. The mobile terminal device having received the file sharing request selects the right or wrong of the file disclosure on the basis of the nick name and the keyword. The file sharing can be executed even with a party who causes hesitation in disclosing a telephone number and a mail address. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
