Patents by Inventor Tommi Viitanen

Tommi Viitanen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Authentication and protection for IP application protocols based on 3GPP IMS procedures
    Patent number: 6895439
    Abstract: The present invention is a system and method which provides authentication for data services for at least one UE (12) using common authentication information based upon information stored in a HSS (16) of a home network (20) of the at least one UE for multiple protocols. At least one proxy server (18) stores authentication information for each of the protocols which may be used to provide data services to the at least one UE. Authentication of the protocols available to the least one UE uses the authentication information stored at the at least one proxy server obtained from the protocol used in the home network of the at least one UE.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: May 17, 2005
    Assignee: Nokia Corporation
    Inventors: Markus Isomäki, Jose Costa-Requena, Atte Länsisalmi, Valtteri Niemi, Aki Niemi, Tao Haukka, Gabor Bajko, Tommi Viitanen
  • Authentication and protection for IP application protocols based on 3GPP IMS procedures
    Publication number: 20030236896
    Abstract: The present invention is a system and method which provides authentication for data services for at least one UE (12) using common authentication information based upon information stored in a HSS (16) of a home network (20) of the at least one UE for multiple protocols. At least one proxy server (18) stores authentication information for each of the protocols which may be used to provide data services to the at least one UE. Authentication of the protocols available to the at least one UE uses the authentication information stored at the at least one proxy server obtained from the protocol used in the home network of the at least one UE.
    Type: Application
    Filed: March 31, 2003
    Publication date: December 25, 2003
    Inventors: Markus Isomaki, Jose Costa-Requena, Atte Lansisalmi, Valtteri Niemi, Aki Niemi, Tao Haukka, Gabor Bajko, Tommi Viitanen