Patent ID: 7206781

Claim:
A data registration system comprising a portable electronic device, a database server and a mail server that are capable of communicating with one another, wherein user identification data for identifying a user of said portable electronic device is transmitted from said portable electronic device to said database server, said database server comprising: a user identification data receiving unit for receiving user identification data transmitted from said portable electronic device; a determination unit for determining whether the user is an authorized user based upon the user identification data that has been received by said user identification data receiving unit; a unique ID generating unit for generating a unique ID in response to a determination by said determination unit to the effect that the user is an authorized user; a file generating unit for generating a file including an e-mail address, which includes the unique ID generated by said unique ID generating unit; and a file transmitting unit for transmitting the file generated by said file generating unit, to said portable electronic device; said portable electronic device comprises: a file receiving unit for receiving the file transmitted form said file transmitting unit of said database server; and a first registration-target data transmitting unit for transmitting data, which is to be registered in said database server, by e-mail to an e-mail address included in the file received by said file receiving unit; and said mail server comprises a registration-target data receiving unit for receiving data transmitted by e-mail from said first registration-target data transmitting unit of said portable electronic device.