Patent ID: 6891819
Filing Date: 2005-05-10
Classification: G06F,G06Q,H04L,H04W

Abstract:
1. A mobile computer device capable of carrying out communications while moving over inter-connected networks, the mobile computer device comprising: a registration message transmission unit for transmitting a registration message containing an information on a current location of the mobile computer device, from outside a home network of the mobile computer device to a mobile computer management device located at the home network, the mobile computer management device having a function for managing the information on the current location of the mobile computer device and transferring packets destined to the mobile computer device to the current location of the mobile computer device; a user input unit for accepting a user input for user authentication; a user-input-based information transmission unit for transmitting to the mobile computer management device a response message containing information based on the user input as a user authentication information, when a challenge message that requests returning of the user authentication information is received from the mobile computer management device in response to the registration message; and an authentication unit for judging a properness of the mobile computer management device according to the challenge message received from the mobile computer management device; wherein the user-input-based information transmission unit transmits the response message containing the information based on the user input when the mobile computer management device is judged as proper.