The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 10, 2005

Filed:

Sep. 04, 1998
Applicants:

Atsushi Inoue, Kanagawa-ken, JP;

Masahiro Ishiyama, Tokyo-to, JP;

Atsushi Fukumoto, Kanagawa-ken, JP;

Yoshiyuki Tsuda, Kanagawa-ken, JP;

Toshio Okamoto, Tokyo-to, JP;

Inventors:

Atsushi Inoue, Kanagawa-ken, JP;

Masahiro Ishiyama, Tokyo-to, JP;

Atsushi Fukumoto, Kanagawa-ken, JP;

Yoshiyuki Tsuda, Kanagawa-ken, JP;

Toshio Okamoto, Tokyo-to, JP;

Assignee:

Kabushiki Kaisha Toshiba, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L012/22 ;
U.S. Cl.
CPC ...
Abstract

A mobile IP communication scheme capable of authenticating an individual user who is operating the mobile computer when the mobile computer is connected to a visited site network and transmits a current location registration message to the home agent is disclosed. A user authentication to judge a properness of a user of the mobile computer is carried out according to a user input based information, and the current location of the mobile computer is registered at the mobile computer management device (home agent) when the user is judged as a proper user. The user authentication can be carried out either at the mobile computer management device according to a user input based information received from the mobile computer, or at the mobile computer according to an information entered by the user at the mobile computer.


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