Patents by Inventor Torben Hoffmann

Torben Hoffmann 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).

  • Method, mobile station, system and network processor for use in mobile communications
    Patent number: 8576751
    Abstract: A method (200) of operation in a mobile communication system (100) includes: a mobile station (101) sending (207) to a visited network (103) a certified service record, provided by a home network (102), of communication services allowed to be provided to the mobile station, the service record being accompanied by or including a certificate code applied by the home network by a calculation procedure applied to contents of the service record using an authentication key; the visited network calculating (211) an authentication code for the service record using an authentication key obtained by the visited network; the visited network authenticating (212) the service record by matching (212) the certificate and authentication codes; and the visited network providing (215) communication services to the mobile station based upon the authenticated service record.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: November 5, 2013
    Assignee: Motorola Solutions, Inc.
    Inventors: Torben Hoffmann, Lars Sorensen
  • METHOD, MOBILE STATION, SYSTEM AND NETWORK PROCESSOR FOR USE IN MOBILE COMMUNICATIONS
    Publication number: 20110182214
    Abstract: A method (200) of operation in a mobile communication system (100) includes: a mobile station (101) sending (207) to a visited network (103) a certified service record, provided by a home network (102), of communication services allowed to be provided to the mobile station, the service record being accompanied by or including a certificate code applied by the home network by a calculation procedure applied to contents of the service record using an authentication key; the visited network calculating (211) an authentication code for the service record using an authentication key obtained by the visited network; the visited network authenticating (212) the service record by matching (212) the certificate and authentication codes; and the visited network providing (215) communication services to the mobile station based upon the authenticated service record.
    Type: Application
    Filed: September 17, 2009
    Publication date: July 28, 2011
    Applicant: MOTOROLA SOLUTIONS, INC.
    Inventors: Torben Hoffmann, Lars Sorensen